[Updated in August] Juniper JN0-104 Exam Material

dumps2022-08-24T02:54:15+08:00

Juniper JN0-104 exam material has been updated in August. The new updated JN0-104 exam material is your best choice to pass the JNCIA-Junos exam. Candidates who decide to take the Juniper certification JN0-104 exam can use the updated JN0-104 exam material to pass. Free updated Juniper JN0-104 exam material is below.

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1. Referring to the exhibit, what will be the result?

The device will boot in single-user mode at the operational prompt.

The device will boot into single-user mode at the shell prompt.

The device will boot into multi-user mode at the shell prompt.

The device will boot in multi-user mode at the configuration prompt.

2. Which source of routing information is preferred by default?

static

RIP

direct

BGP

3. You are connected to your Junos device using an SSH connection to the fxp0 interface. No other interface are currently configured beyond their default setting. You commit a configuration that makes the fxp0 interface unreachable from your management network.

In this scenario, how would you re-establish communication with the device?

Unplug the network cable and plug it back in.

Power off and power on the device.

Establish an SSH connection to the loopback interface.

Connect to the console of the device.

4. Referring to the exhibit, which command will change the 172.16.10.1/24 IP address to 172.16.100.1/24 IP address?

copy interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24

set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24

rename interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24

insert interface ge-0/0/2 unit 0 family inet address 172.16.10.1/24 before address 172.16.100.1/24

5. Which two ping command parameters would be used to troubleshoot MTU issues? (Choose two.)

ping <destination> do-not-fragment

ping <destination> rapid

ping <destination> verbose

ping <destination> size

6. Which two statements are true about static routes in the Junos OS? (Choose Two)

Static routes remain in the routing table until you remove them or until they become inactive

Static routes are learned by neighboring devices and added to their routing tables

Static routes are defined at the [edit routing-instance] hierarchy

Static routes must have next hop defined

7. Referring to the Exhibit,

What information is provided about the route to 192.168.47.0/24? Choose Two

There is a single active route to 192.168.47.0/24

There are two next-hops available to 192.168.47.0/24

There is a single next-hop available to 192.168.47.0/24

There are two active route to 192.168.47.0/24

8. Which two statements describe the default behavior for OSPF? (Choose two)

OSPF imports all routes into the inet4.0 routing table.

OSPF exports all static routes into the OSPF database.

OSPF imports all routes into the inet.O routing table.

OSPF does not export static routes into the OSPF database.

9. Which command prompt indicates that you are in operational mode?

user @ router &

user @ router #

user @ router $

user @ router >

10. Referring to the exhibit,

what happens when ping packets are sent to management interface address of the local router?

The ping packets are silently discarded

An ICMP unreachable message is returned

The Ping packets are accepted

An ICMP redirect message is returned

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11. For the interface ge-1/2/3.4, what does "ge" represent?

SONET/SDH

Gigabit Ethernet

Aggregated Ethernet

GRE

12. What are three firewall filter terminating actions? (Choose three.)

discard

reject

log

drop

13. Which of the following protocols uses both TCP and UDP?

FTP

SMTP

Telnet

DNS

14. What is the default location of the syslog file on Junos devices?

/var/log/

/var/tmp/

/var/home/

/var/db/

15. Which three statements describe OSPF? (Choose three)

OSPF must operate between different autonomous system

OSPF calculates the best path to each destination

OSPF is a link-state IGP

OSPF uses areas to incorporate hierarchy and to allow for scalability

OSPF uses a distance-vector algorithm to calculate routing cost

16. Which two interfaces are considered physical interface? Choose TWO

Ge-0/0/0

Et-3/0/0:0.501

Et-7/1/4:0

Xe-10/2/1

17. Routing policies contain which two type of statements? (Choose two.)

and

from

default

then

18. What are three acceptable modifiers to a terminating action on a firewall filter? (Choose three.)

policer

count

log

discard

syslog

19. Routing policies contain which two types of statements? (Choose two.)

from

then

default

and

20. Exhibit:

Referring to the exhibit, which statement is true?

Traps are allowed from 10.21.15.180

Traps are sent to 10.21.15.180

Traps are sent to 10.21.15.16

Traps are allowed from 10.21.15.16

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21. What is a valid IPv6 address?

00:05:85:23:45:67

127.0.0.1

2001:0db8:3000:2215:0000:0000:aaaa:llll

49.0001.0192.0168.1001.00

22. What are three benefits of using a dynamic routing protocol? (Choose three.)

increased network security

decreased network latency

increased network availability

greater network scalability

lower administrative overhead

23. You are connected to your Junos device using an SSH connection to the txp0 interface. No other interfaces are currently configured and unreachable from your management network .

How would you reestablish communication with the device?

Establish a SSH connection to the loopback interface

Unplug the network cable and plug it back in

Power off and power on the device

Connect to the console of the device

24. Host A is communicating with Host B through a Layer 2 switch.

What is the highest layer that the switch will inspect the traffic in this scenario?

Data Link

Transport

Network

Session

25. Which command will completely turn off a Junos device?

request system halt

request chassis fpc offline

request system power-off

request system recover

26. Referring to the exhibit, what does the number inside the square brackets represent?

local preference

metric

protocol reference number

route preference

27. Which TWO of the following are private IP addresses?

12.0.0.1

168.172.19.39

172.20.14.36

172.33.194.30

192.168.24.43

28. Click the Exhibit button.

***Exhibit is Missing***

Referring to the exhibit, how many received packets are classified as exception traffic?

20814681

14442602

12417

27824

29. How would you change the display so the display so that 40 lines will be displayed in the terminal program when you are logged into a Junos device?

Issue the set cli screen-length 40 command from configuration mode.

Set the display options in your terminal program.

Issue the set cli screen-length 40 command from operational mode.

Set the windows size of your terminal program.

30. Which command allows you to view the raw packet data of interface ge-1/0/5?

monitor interface traffic ge-1/0/5

monitor traffic interface ge-1/0/5

show interface ge-1/0/5 media

show interface ge-1/0/5 extensive

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31. Which word starts a command to display the operational status of a Junos device?

put

set

show

get

32. Click the Exhibit button.

Referring to the exhibit, what happens to a packet that has a destination address of 172.17.0.1?

The packet is forwarded to the next hop defined in the default route.

The packet is silently discarded.

The packet is rejected and an ICMP network unreachable message is sent to the source address.

The packet is forwarded to the next hop of the management network.

33. Which command displays the output shown in the exhibit?

show chassis temperature-thresholds

show chassis environment

show chassis hardware

show chassis alarms

34. Click the Exhibit button.

Referring to the exhibit, which two statements are correct? (Choose two.)

The memory utilization is 28%

The memory utilization is 72%

The CPU kernel utilization is 1%

The 15 minute CPU load average is 99%

35. Which account is used to access a Junos device in a factory-default configuration?

root

admin

lab

juniper

36. Which two statements are correct about the inet.0 routing table? (choose two.)

It is used for populating the Ethernet switching table.

It stores information learned from routing protocols and other sources.

It is used for populating the forwarding table.

It is used for populating the forwarding policy.

37. What is the decimal equivalent of 00000100?

38. Which two statements are true about the default behavior of Junos routing policies? (Choose two.)

Routing policies can export active and inactive routes.

Routing policies can export only active routes.

Routing policies control the flow of routing information going to and from the routing table.

Routing policies control the flow of routing information going to and from the forwarding table.

39. Exhibit:

Which statement is true about the command shown in the exhibit?

There needs to be a ; after top for the command to be accepted as a valid command.

Only top should be used, no other options are allowed on the same line.

The command shown in the exhibit would be accepted as a valid command.

If you replace top with up command, it becomes valid.

40. Which two statements describe the connection between control plane and the forwarding plane? Choose Two

No rate limiter is configured by default

A rate limiter is configured by default

Exception traffic is preferred over the control traffic during congestion

Control traffic is preferred over the exception traffic during congestion

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41. Which command is used to load the rescue configuration?

load merge rescue

rollback rescue

rollback 0

load replace rescue

42. You have the policy configuration shown in the exhibit applied to a BGP peering. You determine that customer routes coming from the 10.1.1.0/24 network are being rejected

Which action should be used to correct the problem?

[edit policy-options policy-statement my-policy] user@router# copy term 2 to term 1

[edit policy-options policy-statement my-policy] user@router# rename term 1 to term 3

[edit policy-options policy-statement my-policy] user@router# copy term 2 to term 0

[edit policy-options policy-statement my-policy] user@router# insert term 2 before term 1

43. What are the contents of a scheduler?

A scheduler contains parameters that describe how a queue should be serviced.

A scheduler contains traffic that is ready to be transmitted.

A scheduler contains forwarding classes that allow traffic to be forwarded.

A scheduler contains a map between the classification of a packet and its forwarding class.

44. Which statement is correct regarding the configuration shown in the exhibit?

When the ospf-trace file has created five files, it will stop logging additional information.

When the ospf-trace file reaches the 64 kB file size, it is renamed and begins a new file

the ospf-trace file will automatically replace any any existing trace file with the same name

Timestamp information will not be included for each line of ospf-trace output

45. Which two commands would you use to reset the candidate configuration to the active configuration? (Choose two.)

rollback 0

rollback 2

rollback 1

rollback

46. Which of these commands can be used to gracefully shutdown the Junos OS?

request system reboot

request system halt

restart gracefully

request system logout

47. The monitor traffic command closely resembles which UNIX-based utility?

ps -x

passwd

ls -a-l

tcpdump

48. What information does the help topic command provide?

a brief description of commands and their default values

usage guidelines for a topic or configuration statement

router's version and serial number to help open a case with JTAC

a verification of the current configuration on the router

49. After logging in as a root user, which of these commands must be used to enter operational mode?

configure

enable

cli

edit

50. Which two features are implemented on the Packet Forwarding Engine? (Choose two.)

firewall filters

chassis management

class of service

routing protocol updates

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51. What represents the decimal equivalence of 10100101?

127

165

52. What represents the decimal equivalence 1100 00011111 11001001 11000101?

172.28.187.189

172.31.201.197

172.30.231.182

172.19.151.107

53. What are three valid software release designations for the junos OS? (Choose three.)

54. By default, which character indicates the UNIX shell prompt?

55. Which two statements are correct regarding the internal link between the control plane and forwarding plane? (Choose two.)

The internal link has a built-in rate limiter that is configurable.

The internal link rate limits exception traffic to protect the Routing Engine against denial-of-service attacks.

The internal link has a built-in rate limiter that is not configurable.

The internal link rate limits transient traffic to protect the Routing Engine against denial of service attacks.

56. Which command is used to replace a current configuration?

load replace

load patch

load override

load set

57. Which operational command displays the routing table?

show routing-table

route print

display routes

show route

58. Which of these are valid match criteria for a firewall filter applied to a Layer 3 interface? (Choose three)

Session ID

protocol

MAC address

port

IP address

59. Which of these commands can be used to view the active configuration?

user@router> show system commit

user@router> show system configuration

user@router# show

user@router> show configuration

60. Exhibit:

Referring to the exhibit, which command was issued to generate the output?

show chassis environment

show chassis routing-engine

show chassis fpc

show chassis hardware

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61. Which statement is correct about the validate option when upgrading JUNOS software with the request system software add command?

It will check the compatibility of the configuration with the install package.

It will check if the device meets the storage requirement for the install package.

It will check the MD5 checksum of the install package.

It will check if the device meets the memory requirements for the install package.

62. Which two statements are true regarding interface properties? (Choose two.)

MTU and speed must be configured under the logical unit.

Physical parameters such as MTU, duplex mode, and speed are configured under the interface name.

IPv4 and IPv6 addresses are configured under the logical unit.

DLCI numbers, VPI/VCI values, and VLAN tags are physical parameters.

63. What is a characteristic of route preference?

It is the same as a route metric.

It must be assigned manually for each protocol.

A higher preference is better than a lower preference.

A lower preference is better than a higher preference.

64. Consider the host IP Address is - 192.168.100.60 and the network mask is - 255.255.255.224 (or /27).

Which of the following address represents the correct network address for the referenced host?

192.168.100.0

192.168.100.32

192.168.100.48

192.168.100.16

65. What is the maximum number of configurations, by default, that are recoverable using the rollback command?

100

66. Which feature must you enable prior to performing a unified in-service software upgrade?

graceful Routing Engine switchover (GRES)

Virtual Router Redundancy Protocol (VRRP)

graceful restart

Network Time Protocol (NTP)

67. Which two of the following items does a scheduler map associate with each other? (Choose two.)

Scheduler

BA Classifier

Forwarding class

Rewrite rule

68. Which two statements are true regarding dynamic routing? (Choose two.)

Participating devices dynamically learn routing information from each other

Dynamic routing requires more administrative overhead than static routing

Dynamic routing allows a device to automatically reroute traffic around a failure

Dynamic routing is used when absolute control of routing parameters is necessary

69. Which statement is true about PFEs?

A PFE receives microcode updates from the RE

A PFE receives layer 4 forwarding table updates from the RE

A PFE receives hardware status messages from the RE

A PFE receives environmental status messages from the RE

70. What is minimum configuration required for a Junos device to respond to SNMP requests?

set snmp community public authorization read only

set snmp public version v2

set snmp community public

set snmp trap-group public version v1

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71. Which of these authentication methods are NOT supported by Junos? (Choose two)

RADIUS

local user database

CHAP

TACACS+

PAP

72. Which of these statements is true about logical units on Juniper Router interfaces?

A logical unit is always required.

Logical units are used only when a Layer 2 identifier is present such as VLA

Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.

A logical unit of 0 is required when using a frame-relay DLC

73. What are two functions of the PFE? (Choose two.)

to maintain the forwarding tables

to apply the class of service function

to forward transit traffic

to monitor the chassis

74. Which statement is true about the forwarding plane?

The forwarding plane is the intelligence of the platform.

The forwarding plane is based on an X86 architecture.

The forwarding plane maintains the routing tables, bridging table, and primary forwarding table.

The forwarding plane implements policers, stateless firewall filters, and class of service.

75. When using keyboard shortcuts, which keystroke combination allows users to erase a single word to the left of the cursor?

Ctrl + a

Ctrl + e

Ctrl + u

Ctrl + w

76. Which command is used to replace the current configuration?

load replace

load set

load patch

load override

77. Which of these commands can be used to discard changes made to candidate configuration? (Choose two)

delete 0

rollback 0

delete

rollback

78. You need to access a server on a subnet 172.0.46.0/24. The next-hop router is 10.0.4.2/30. A static route on the gateway has been configured to accomplish the task.

You want to keep the static route from being redistributed into dynamic routing protocols.

Which command will satisfy this requirement?

set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30 no-redistribute

set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30 no-readvertise

set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30 no-resolve

set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30

79. Which operational command allows a user to view the exhaust temperatures of a Junos device?

show chassis state

file list alarm

show chassis alarms

show chassis environment

80. What are two important steps when upgrading an SRX300 Series device? (Choose two.)

Verify that enough space exists to upload the software package.

Verify that the netconf protocol is enabled.

Clear all alarms.

Reboot the device.

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81. You are asked to change the cable on interface fe-4/2/3.

Which statement is correct?

The cable is found on port 4, FPC 2, and slot 3.

The cable is found on slot 2, port 3, and FPC 4.

The cable is found on FPC 4, slot 3, and port 2.

The cable is found on slot 2, FPC 3, and port 4.

82. What are three benefits of using IPv6?

IPv6 supports a greater level of security by integrating features that were optional add-ons in IPv4.

IPv6 reduces administrative overhead using stateless address autoconfiguration for hosts.

IPv6 eliminates the need for private to public NAT using a large address pool.

IPv6 provides backward compatibility with IPv4 using the Next Header field.

IPv6 represents large IP addresses using dotted decimal notation.

83. Which two commands are used during the password recovery process?

clear system login

boot -s

recovery

delete system root-authentication

84. What is the last usable IP address in 200.10.10.0/26?

200.10.10.62

200.10.10.64

200.10.10.63

85. You specify a regular expression for allow-commands with the commit synchronize command. You specify a regular expression for deny-commands with the commit command.

For a user assigned to such a login class, which of this is true?

The user wouldn't be able to issue any of the command.

The user would be able to issue both the commands - commit synchronize and commit.

The user would be able to issue the commit command but not the commit synchronize command.

The user would be able to issue the commit synchronize command but not the commit command.

86. You are modifying the default route preference under the [edit protocols] hierarchy. In which two routing information sources can you change the default preference value? (Choose two)

BGP

local

OSPF

direct

87. Choose the advantages that dynamic routing protocols offer over static routing protocols. (Choose three)

easier to implement qualified next hops

easier ECMP route implementation

increased network availability

lower administrative overhead

greater network scalability

88. When a non-root user connects to a Junos device and successfully enters a username and password, they are immediately placed at which level?

UNIX shell

user-level CLI

configuration mode

operational mode

89. Which types of destinations are populated into the forwarding table?

Destinations that are only local to the system

Destinations that are active and passed from the routing table

Destinations that are not accepted by an import policy

Destinations that are user-defined only

90. Given the configuration shown below: set system authentication-order [tacplus] Which two statement are correct? (Choose two.)

If the TACACS+ server is no available, the user is not allowed to access the device.

If the TACACS+ server is no available, the local database is checked.

If the TACACS+ server is available, and rejects the username/password provided, the local password database is checked.

If the TACACS+ server is available, and rejects the username/password provided, the user is not allowed to access the device.

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91. Which statement is correct regarding IPv6 addresses?

An IPv6 address consists of 128 bits separated into eight 16-bit hexadecimal sections.

An IPv6 address consists of 64 bits separated into four 16-bit hexadecimal sections.

An IPv6 address consists of 128 bits separated into sixteen 8-bit hexadecimal sections.

An IPv6 address consists of 64 bits separated into eight 8-bit hexadecimal sections.

92. How would you change the display so that 40 lines will be displayed in the terminal program when you are logged into a Junos device?

Issue the set cli screen-length 40 command from configuration mode

Set the display options in your terminal program

Set the window size of your terminal program

Issue the set cli screen-length 40 command from operational mode

93. How many usable host addresses are available in 181.74.94.235/21?

2048

2044

1024

2046

94. Which character in the Junos software CLI allows you to filter and manipulate command output?

question mark

pipe character

95. Which three attributes contribute to the reliability of TCP?

Choose three.

Port numbers

EXP bits

Sequence numbers

Acknowledgements

Timers

96. What are three terminating actions for a firewall filter? (Choose three.)

reject

log

terminate

discard

97. What statement is true about the orlonger route-filter match type?

All routes within the specified prefix that are longer than the given prefix are considered a match

All routes within the specified prefix that are longer or equal to the given prefix up to a defined acceptable prefix length are considered a match

All routes within the specified prefix that are longer than the given prefix up to a defined acceptable prefix length are considered a match

All routes within the specified prefix that are longer or equal to the given prefix are considered a match

98. Which statement is true about import routing policies?

Import policies evaluate routes in the inet.3 routing table.

Import policies evaluate routes as they are advertised to another router.

Import policies evaluate routes in the inet.0 routing table.

Import policies evaluate routes after they are received from another router.

99. Exhibit:

Which statement is correct when traffic is received from 10.10.10.4?

The traffic is only rejected

The traffic is only accepted

The traffic is counted and accepted

The traffic is counted and rejected

100. Which layer of the TCP/IP model is tasked with delivering packets to the destination?

Network Layer

Application Layer

Internet Layer

Transport Layer

Page 11 of 24

101. Which of these is true about routing table?

The routing table exists in the control plane and in the forwarding plane.

The routing table is stored on compact flash.

The routing table contains both active and inactive routes.

The routing table exists in the control plane only.

102. Which command configures an address of 192.168.1.1 with a mask of 255.255.255.0 on interface ge-0/0/0?

set ip interface ge-0/0/0 address 192.168.1.1 255.255.255.0

set ip interface ge-0/0/0 address 192.168.1.1/24

set interface ge-0/0/0 ip4 address 192.168.1.1 mask 255.255.255.0

set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.1/24

103. Which two fields are found in an Ethernet frame? (Choose two.)

Version

TTL

Checksum

Data

104. Which of these features of IPv6 results in efficient packet processing?

smaller header size

larger header size

fixed header size

variable header size

105. Referring to the exhibit, which action would synchronize the local router's clock with the NTP server?

Issue the set date ntp operational command

Configure the correct NTP trusted key using the set trusted-key <key-value> configuration command under the [edit system ntp] hierarchy

Configure the NTP server using the set boot-server 172.25.11.254 configuration command under the [edit system ntp] hierarchy

Reboot the router

106. What are three characteristics of UDP?

UDP is faster than TC

UDP operates at the Transport Layer.

UDP is connection-oriented.

UDP data is sent best-effort. UDP is more reliable than TC

107. Which CLI command will ping destination 10.0.29.1?

user@host> ping 10.0.29.1

user@host# ping 10.0.29.1

user@host> ping host 10.0.29.1

user@host# ping host 10.0.29.1

108. Which statement is true about exception traffic?

Exception traffic is automatically logged in /var/log/messages.

Exception traffic requires a firewall filter before it can be acted upon.

Exception traffic requires some form of special handling.

Exception traffic passes through the local device.

109. When troubleshooting ATM, which command would allow you to test reachability from one side of an ATM cloud to the other?

ping atm vci 0.100 interface at-0/1/0 end-to-end

ping atm vci 0.100 interface at-0/1/0 circuit

ping atm vci 0.100 interface at-0/1/0 far-end

ping atm vci 0.100 interface at-0/1/0 final-hop

110. You must segment your internal /24 network into a minimum of 12 subnets, each containing a minimum of 12 hosts.

Which network mask do you use?

/26

/27

/28

/29

Page 12 of 24

111. Which configuration more allows only a single user to edit the configuration?

configure exclusive

configure Private

configure dynamic

configure batch

112. In which directory does Junos store the traceoptions files?

/var/tmp

/var/log/

/var/home/<username>

/var/

113. What are two default routing policies on Junos devices?

The BGP import policy accepts all BGP routes.

The BGP export policy rejects all active BGP routes.

The OSPF import policy accepts all OSPF routes.

The OSPF export policy accepts all active OSPF routes.

114. Your configuration contains the static routes shown in the exhibit.

Which command will successfully remove the 166.74.67.131 static route?

delete routing-options static route 166.74.67.131/32 qualified-next-hop 166.113.123.27 interface irb.222

delete routing-options static route 166.74.67.131/32

delete routing-options static route 166.74.67.131/32 qualified next-hop 166.113.123.37

delete routing-options static route 166.74.67.131/32 qualified next-hop

115. What will the command ping 192.168.1.1 count 5 perform?

ICMP echo requests are sent to 192.168.1.1 for five seconds

ICMP echo requests are sent to 192.168.1.1 until five responses are received

ICMP echo requests are sent to 192.168.1.1 in five second intervals

ICMP echo requests are sent to 192.168.1.1 five times

116. Which operational command would you enter to see a concise display of which interfaces are up and which are down?

show interfaces brief

show interfaces status

show ip interface brief

show interfaces terse

117. Which process is responsible for controlling all interfaces on a Junos device?

rpd

chassisd

dcd

mgd

118. Which CIDR notation is the equivalent of the subnet mask of 255.255.192.0?

/19

/18

/17

/20

119. Which of these are benefits of the modular design of Junos? (Choose two)

Each module runs in it's own protected memory space.

Each module uses specialised hardware.

Each module can be restarted separately.

120. Which of these protocol daemons is responsible for user commands and configuration on a Junos device?

chassisd

mgd

dcd

rpd

Page 13 of 24

121. Which of these commands will cause a matching packet to be dropped silently?

set routing-options static route 192.168.1.1/32 reject

set routing-options static route 192.168.1.1/32 discard

set routing-options static route 192.168.1.1/32 drop

set routing-options static route 192.168.1.1/32 passive

122. Which of these are examples of RE exception traffic? (Choose two)

OSPF hello packets destined for the local Junos device

BGP updates traversing the local Junos device to another router

Telnet traffic destined for a Junos host

Telnet traffic traversing the local Junos device for another router

123. Which two configuration commands are required to use RADIUS as the user authentication method? Choose two.

Top set system login radius-server 10.10.10.10 secret useme

Top set system radius-server 10.10.10.10 secret useme

Top set system authentication-order radius

Top set system login users radius

124. Which of these is responsible for handling transit traffic?

RE only

Both RE and PFE

Neither RE, not PFE

PFE only

125. Exhibit:

A user attempts to log in to a Junos device. but the RADIUS server is unreachable.

Referring to the exhibit, what is the default action of a Junos device in this scenario?

The Junos device retries every 30 seconds until the connection is restored.

The Junos device prompts for a cached RADIUS password.

The Junos device displays a RADIUS connection error.

The Junos device uses the local authentication database.

126. Which of these about the role of Routing Engine are true? (Choose two)

The RE manages the Packet Forwarding Engine (PFE).

The RE controls and monitors the chassis.

The RE implements class of service (CoS).

The RE receives a copy of the forwarding table.

127. Which two login-class permissions will permit a user to view the system hierarchy of the active configuration? (Choose two)

system permission

admin permission

all permission

network permission

128. What does the output of the show route forwarding-table command display?

The routing protocol databases in the Routing Engine.

The inactive entries in the Routing Engine's routing table.

The Routing Engine's forwarding table.

The Packet Forwarding Engine routing table.

129. What is the binary equivalent of 242.168.94.124?

11110011 10101000 01011110 01111100

11110010 10101010 01011110 01111100

11110010 10101000 01011110 01111100

11110010 10101000 01010110 01111100

130. Which of these help commands gives a list of commands in which a given keyword is used throughout Junos?

help topic

help apropos

help reference

Page 14 of 24

131. Which three of the following are considered match criteria in a policy? (Choose three.)

prefix-list

protocol ospf

next-term

AS path

prefix-term

132. Which of these are characteristics of UDP? (Choose two)

three-way handshake

defined timers

limited error checking

no recovery mechanisms

133. What is the binary equivalent of 100.25.98.207?

01100100 00011001 01100010 11001111

01110100 00011001 01101010 11001111

01100100 00011001 01101010 11001111

11100100 00001001 01100010 11001110

134. The auto-complete feature in the Junos CLI is triggered by which methods?

pressing the Spacebar for both command and variable completion

pressing the Spacebar for only command completion and the Tab key for only variable completion

pressing the Spacebar for only variable completion and the Tab key for only command completion

pressing the Tab key for both variable and command completion and the Spacebar for command completion

135. Which of these about IPv6 addresses is true?

An IPv6 address consists of 128 bits grouped into sixteen 8-bit hexadecimal sections

An IPv6 address consists of 64 bits grouped into eight 8-bit hexadecimal sections

An IPv6 address consists of 128 bits grouped into eight 16-bit hexadecimal sections

An IPv6 address consists of 64 bits grouped into four 16-bit hexadecimal sections

136. Which of these about optical networks are true? (Choose two)

SONET and SDH both use time-division multiplexing

SONET and SDH both use wavelength-division multiplexing

Optical transport network uses wavelength-division multiplexing

Optical transport network uses time-division multiplexing

137. An administrator is unable to ping any address on the 10.0.19.0/24 subnet.

To identify the problem, the administrator uses the command shown in the exhibit.

user@router# run show interfaces terse

Interface Admin Link Proto Local

fe-0/0/0 up up

fe-0/0/0.0 up upinet 10.0.39.2/24

iso

mpls

fe-0/0/1 up up

fe-0/0/1.0 up upinet 10.0.18.2/24

fe-0/0/1.5 down up inet 10.0.19.2/24

Which step should be taken to solve the problem?

Check the physical cable.

Issue the command activate interfaces fe-0/0/1.5.

Issue the command delete interfaces fe-0/0/1.5 disable.

Reconfigure the IP address.

138. Which statement is true about import and export routing policies?

Import policies concern routes received and determine which routes get put into the routing table.

Export policies concern routes received and determine which routes get put into the routing table.

Export policies are applied before the routing table.

Import polices are applied after the routing table.

139. Which user authentication method is supported by Junos as a last resort alternative?

RADIUS

local user database

CHAP

TACACS+

140. Which two are correct when configuring an IP address for a Fast Ethernet interface?

set interfaces fe-0/0/0 address 10.1.1.1/24

set interfaces fe-0/0/0.0 family inet address 10.1.1.1/24

set interfaces fe-0/0/0.0 address 10.1.1.1/24

set interfaces fe-0/0/0 unit 0 family inet address 10.1.1.1/24

Page 15 of 24

141. You accidentally configured interface so-0/0/0.0 with 1.1.1.1/32 instead of 1.1.1.1/30.

Which two solutions could you use to correct this configuration? (Choose two.)

[edit interfaces so-0/0/0.0] user@router# replace family inet address 1.1.1.1/32 with 1.1.1.1/30

[edit interfaces so-0/0/0.0] user@router# rename family inet address 1.1.1.1/32 to address 1.1.1.1/30

[edit] user@router# replace interface so-0/0/0.0 family inet address 1.1.1.1/32 with address 1.1.1.1/30

[edit interfaces so-0/0/0.0] user@router# delete family inet address user@router# set family inet address 1.1.1.1/30

142. Which configuration command can you use to reset a Junos device to factory defaults?

reset configuration

load factory-default

load override default

set default configuration

143. What is the network address of the IPv4 subnet that includes the IP address 114.180.192.120/28?

114.180.192.118/28

114.180.192.100/28

114.180.192.106/28

114.180.192.112/28

144. Which of these is a valid option when using the ping command?

size

TCP port

packet loss

CRC

145. Which of these are true when using the configure exclusive command? (Choose three)

Only a single user can make changes to the configuration.

Multiple users can enter the configuration mode and have their own private configuration.

A message indicates that another user has locked the configuration, the CLI displays the user and the hierarchy level the user is viewing or editing.

When a user commits, only the user's changes are committed.

146. Which of these are valid actions for a routing policy? (Choose two)

next policy

ignore

discard

147. What is considered a logical interface property on a Junos device?

MAC address

duplex setting

protocol family

clocking

148. You want to filter the syslog file named “test” for only the entries that contain either “kernel” or “panic”.

Which command do you use?

show log test | find kernel | find panic

show log test | find “kernel | panic”

show log test | match kernel | match panic

show log test | match “kernel | panic”

149. Which three configuration elements are considered part of the initial configuration? (Choose three.)

SNMP

hostname

root password

user password

management access interface

150. Which command can be used to review the list of files that can be deleted with the request system storage cleanup command, before actually deleting the files?

request system storage cleanup dry-run

request system storage cleanup check

request system storage cleanup simulate

request system storage cleanup review

Page 16 of 24

151. Your routing table contains four static routes, which you need to redistribute to your OSPF peers.

Which method would accomplish this task?

Apply an import policy to OSPF, which will import the static routes into OSP

Apply an export policy to the static route configuration, which will export the routes to other protocols.

Apply an import policy to the forwarding table, which will import the routes, allowing them to be forwarded to OSPF neighbors.

Apply an export policy to OSPF, which will export the static routes to your OSPF neighbors.

152. Your Junos device has a routing policy with three terms. The first term of the policy does not contain a terminating action.

What happens to the routes after they have been evaluated by the first term?

In the absence of a terminating action, all routes are accepted.

The routes are evaluated by the second term in the policy.

The default action is applied to the routes.

In the absence of a termination action, all routes are rejected.

153. Which of these is a valid IPv6 address?

::192:168:0:1

0e:bc:32:a3:4b:7b

127.0.0.1

2001:0:3238:DFE1:63::FEFB

154. Which of these are examples of dynamic IGP's? (Choose three)

OSPF

PIM

BGP

IS-IS

RIP

155. You are in configuration mode at the top of the hierarchy. You need to abort the changes that you have made and start again with a fresh copy of the active configuration.

Which command should you use to accomplish this task?

rollback 0

load active

reset config

clear candidate config

156. Which parameter would you use to prohibit the redistribution of a static route used for management traffic?

discard

passive

reject

no-readvertise

157. Which of these commands can be used to run a ping? (Choose two)

user@router> run ping 192.168.1.1

user@router# ping 192.168.1.1

user@router> ping 192.168.1.1

user@router# run ping 192.168.1.1

158. Which statement n true atoll PEEs?

A PFE reserves microcode update Frome RE

A PFE reserves layer 4 forwarding table update from the RE

A PFE receives hardware status from the RE

A PFE receives environmental status massage from the RE

159. What information does the help reference command provide? (Choose three.)

command syntax

a list of RFCs describing the command functions

command default parameters and allowed value ranges

the configuration level at which the command can be entered

an example of how to configure the technology to which the command is related

160. Which of these is true about the information shown in the exhibit?

-----Exhibit-----

Amnesiac (ttyu0)

login:

-----Exhibit-----

The device memory has been corrupted.

The factory default configuration is running on the device.

The device was recently upgraded to a newer version of Junos.

The Junos operating system did not boot correctly.

Page 17 of 24

161. Which command correctly sets a Junos device’s date and time?

user@host# set date 199708290900.00

user@host# set system time 199708290900.00

user@host> set date 199708290900.00

user@host> set system time 199708290900.00

162. Which two of the following are considered match criteria in a policy? (Choose two.)

next-term

AS path

prefix-file

community

163. Which command do you use to navigate to [edit interfaces]?

cd interfaces

dir edit interfaces

edit interfaces

interfaces

164. You have entered the command "show log messages | match "error | kernel | panic" which statement is correct regarding the keywords error, kernel and panic in the output?

the output messages will contain all messages from the file that contains all three defined Keywords

the output messages will contain all messages from the file that contains at least one of the three defined keywords

the output messages will contain all messages from the file except the ones that contain all three defined keywords.

the output messages will contain all messages from the file except the ones that contains at least one of the three defined keywords

165. Which of these commands will redistribute static routes into OSPF?

set protocols ospf import static-routes

set routing-options static defaults readvertise

set protocols ospf export static-routes

set routing-options static route 0.0.0.0/0 readvertise

166. You have configuration groups applied on your router.

Which command would you use to see all components of the interface hierarchy?

show configuration interfaces | display inheritance

show configuration interfaces | display changed

show configuration interfaces | display set

show configuration interfaces | display detail

167. Which command can be used to verify active alarms on the interfaces?

show interfaces terse

show interfaces alarms

show interfaces extensive

show alarms extensive

168. Which of these is the default action for firewall filters?

log

discard

reject

169. Which Junos release would address only bug fixes that were not contained in the 15.1R1 version of code?

15.1X2

15.1R2

15.1F2

15.1S2

170. Your junos device is using the configuration shown in the exhibit, you notice that the 172.17.23.10/30 address is incorrect and should be 172.17.23.9/30.

What are two commands that would solve the problem?

[edit interfaces] user@router# delete ge-0/0/2.0 family inet address 172.17.23.10

[edit interfaces] user@router# rename ge-0/0/2.0 family inet address 172.17.23.10/30 to address 172.17.23.9/30

[edit interfaces] user@router# replace pattern 172.17.23.10 with 172.17.23.9

[edit interfaces] user@router# set ge-0/0/2.0 family inet address 172.17.23.9

Page 18 of 24

171. When you first log in to a router, how does the router indicate that factory defaults are being used?

The router's host name is Amnesiac.

The password you used to log in is junos.

The router immediately enters configuration mode after you log in.

The router allows you to enter configuration mode without logging in.

172. Which command do you use to show the status of the file system storage space?

file list system storage

show file system storage

show chassis hardware storage

show system storage

173. Which statement is correct about protocol families on an interface?

Only one family is allowed on an interface.

Only one address per family is allowed on an interface.

Only one address per family is allowed on a given logical unit.

Multiple families and addresses can be configured under the same logical unit.

174. Which of these are requirements for two devices to communicate on an IP network? (Choose two)

end-to-end communications path

routing information on participating Layer 3 devices

hosts should be on the same Layer 3 broadcast domain

hosts should be on the same Layer 2 broadcast domain

175. What must you type to enter operational mode from the root@% command prompt?

exit

configure

edit

cli

176. You must segment your internal 192.168.1.0/24 network into a minimum of 12 subnets, each containing a minimum of 12 hosts.

Which network mask do you use?

/26

/27

/28

/29

177. What represents the decimal equivalence of 11100101?

177

229

178. Which command initiates a loopback on a Gigabit Ethernet interface ge-0/0/0?

user@host# set interfaces ge-0/0/0 unit 0 loopback

user@host# set interfaces ge-0/0/0 gigether-options loopback

user@host> set interfaces ge-0/0/0 loopback

user@host> loopback ge-0/0/0

179. You are investigating routing problems on a device running the Junos OS. You receive the error shown in the exhibit when you attempt to restart the routing process.

user@router> restart

^

unknown command.

Which statement describes the problem?

You have typed an invalid command.

You must be in configuration mode to restart the routing process.

You do not have permission to restart the routing process.

You must wait until close of business to restart the routing process, based on user-defined policy.

180. By default, if equal-cost paths exist for the same destination, which action will the Junos device take?

Make a copy of the traffic and send it to both destinations.

Randomly select one of the available paths to send traffic.

Load-balance traffic between the available paths.

Drop half the traffic.

Page 19 of 24

181. Which word starts a command to remove configuration on a Junos device?

discard

delete

remove

unset

182. Which IP Protocol number is assigned to TCP?

183. You configured the route filter shown in the exhibit.

In this scenario, which IP addresses would term-One accept?

IP addresses that are part of the 172.35.0.0/16 network only.

IP addresses that are part of the 172.35.0.0/16 network and IP addresses that are in the 172.35.0.0/16 and 172.36.0.0/16 subnets.

IP addresses that are in a subnet of 172.35.0.0/16 network, but not IP addresses that are part of the 172.35.0.0/16 network itself.

IP addresses that are part of the 172.35.0.0/16 network and IP addresses that are in subnets of 172.35.0.0/16 network.

184. Which of these about rescue configurations are true? (Choose three)

Rescue configuration should have the minimum configurations needed to restore network connectivity.

Rescue configurations must include a root password.

Rescue configurations can be loaded using the rollback command.

Junos has a rescue configuration by default.

185. Which command will display the detailed Routing Engine status and its temperature?

show chassis routing-engine

show chassis status

show chassis environment

show chassis temperatures

186. What are the usable hosts on the 192.168.1.24/29 network?

.24 through .48

.24 through .32

.25 through .30

.35 through .31

187. Which command verifies configuration syntax without applying the changes?

commit confirmed

commit check

commit comment

commit and-quit

188. Which of these commands can be used to troubleshoot routing issues and check the path to the destination 192.168.1.1? (Choose three)

user@router> traceroute 192.168.1.1

user@router> ping record-route 192.168.1.1

user@router# run traceroute 192.168.1.1

user@router# traceroute 192.168.1.1

user@router# ping record-route 192.168.1.1

189. Which of these commands allows you to view interface usage in real-time?

show interface terse

monitor interface traffic

show interface traffic

monitor traffic

190. During a password recovery, what is the next step after configuring the system to boot into single-user mode?

Type recovery.

Press the space bar.

Press the "Enter" Key.

Reset the password.

Page 20 of 24

191. Which of these about forwarding table are true? (Choose two)

The forwarding table contains all known routes.

In case of multiple matches, the forwarding table uses the least-specific entry to forward packets.

The forwarding table stores a subset of the information from the routing table.

Incoming packets are compared against existing entries in the forwarding table to determine the next hop.

192. What happens when a route does not match any user-configured policies?

The route is rejected.

The route is accepted.

The route is given a lower priority.

The route is sent to the default policy.

193. Which of these functions are available under the "Maintain" tab of J-Web? (Choose two)

reboot the device

view and add licenses

view real-time statistics of interfaces

edit security settings

194. Which two statements describe a routing policy?

A routing policy allows you to control the flow of information into the routing table

Attribute changes applied to export policies always affect the local routing table

Active and inactive routes are available for export from the routing table

Routing policy are used to choose which routes are sent to neighbors using dynamic routing protocols

195. Which statement is true?

The forwarding plane is responsible for Layer 2 only; it does not look at IP addresses.

The Routing Engine performs a longest match lookup for the destination address on each packet traversing the router.

The forwarding plane maintains the complete routing table, including inactive routes.

The forwarding plane performs a longest match lookup for the destination address on each packet traversing the router.

196. Given the configuration shown in the exhibit, which additional configuration is needed to advertise OSPF-learned routes to RIP neighbors?

Click the Exhibit to see a larger version.

top set protocols rip group example export demo

top set protocols rip export demo

top set protocols ospf export demo

top set protocols ospf group example export demo

197. In which Junos mode are users allowed to monitor and troubleshoot software, network connectivity, and hardware?

privileged

operational

configuration

monitoring

198. Which command allows you to commit your configuration changes, but has the device revert to the previous configuration automatically after 10 minutes if you do not commit a second time?

commit 10

commit verify

commit confirmed

commit timeout

199. Which operational command shows which message is displayed on a Junos device’s LCD status screen?

show chassis lcd

show chassis fpd

show chassis craft-interface

show chassis status-window

200. Which command allows you to commit your changes but has the router recover the previous configuration automatically after 10 minutes if another commit is not issued?

commit 10

commit test

commit time-out

commit confirmed

Page 21 of 24

201. What is the decimal equivalent of 10101100 00011111 11001001 11000101?

172.28.187.189

172.31.201.197

172.30.231.182

172.19.151.107

202. You issue the request system zeroize command.

Which statement is correct in this scenario?

All data files are deleted and the configuration settings remain unchanged.

Disk space is freed by rotating log files and a proposed list of files to delete is presented.

All data files remain unchanged but all configuration setting are returned to factory defaults.

All data files are deleted and all configuration setting are returned to factory defaults.

203. In the command set policy-options policy-statement policy ABC term A from route-filter 192.169.1.0/24 longer, which two other parameters could replace longer”?

Choose two.

andlonger

shorter

exact

orlonger

204. Which command can be used to validate the syntax of a configuration without applying the configuration?

commit confirmed

commit check

commit and-quit

commit synchronize

205. When you display the routing table by entering the show route command, what does the * indicate?

The route is a direct route.

The route was selected as active.

The route is a default route.

The route was learned using a dynamic routing protocol.

206. Which command gracefully shuts down the Junos OS?

request system reboot

request system logout

request system halt

restart gracefully

207. Which login class permission will allow a user to use the telnet utility?

network permission

maintenance permission

supervisor permission

shell permission

208. What is the decimal equivalent of 10101010?

182

180

170

172

209. Which J-Web tab allows you to add licenses to the device?

Monitor

Troubleshoot

Configure

Maintain

210. The following is the output of the show system alarms command.

Which of these commands will resolve the problem shown above?

file save current /config/rescue.conf

file copy current /config/rescue.conf

request system configuration rescue save

Page 22 of 24

211. A BGP route does not match any term within a routing policy applied to BGP.

Which action is taken by the router for this route?

It discards the route by the implicit ‘discard all’ at the end of the policy.

It advertises the route according to BGP rules.

It discards the route by the default routing protocols policy.

It discards the route because it is unable to match the route to a configured action.

212. Which two policy actions are considered flow control actions? (Choose two.)

reject

community add

next term

next policy

213. Which of these is true about collision domains? (Choose two)

On a hub, the collision domain includes all devices connected to the hub.

On a hub, the collision domain is limited to each device and the hub.

On a switch, the collision domain is limited to each device and the switch.

On a switch, the collision domain includes all devices connected to the switch.

214. Which of these is true about the load override command?

it will completely overwrite the current configuration with the configuration you load

it will update replace the full current configuration with the factory-default configuration

it will combine the current configuration with the configuration you load

215. Which three statements are true about iPv6 link local addresses? (Choose three )

They begin with the prefix lfe80::/64.

They can be assigned manually or dynamically.

They are not guaranteed to be unique outside or the network segment

They are optional addresses

They provide reachability to the Internet

216. Which three statements are true about dynamic routing protocols? (Choose three.)

They are scalable.

They are Dijkstra based.

They share network layer reachability information among neighbors.

They automate next-hop decisions.

They are tolerant of configuration errors.

217. You issue the ping interface t1-1/1/0 1.1.1.1 bypass-routing count 1000 rapid command.

Which statement is correct?

The count parameter creates a counter that you can view with the show firewall command.

The count parameter allows the router to count the number of pings for logging purposes.

The count parameter allows the router to pause for 1000 seconds before sending out a ping.

The count parameter allows the router to send out 1000 pings and then stop.

218. Which of these is true about syslog on Junos?

By default, information is stored in a file named events.

The router can be configured to send log messages to the console.

No logging is enabled by default.

Only the message severity level must be configured.

219. You asked to create a firewall filter to count IPv6 packets that arrive with a no next header value. As shown in the exhibit, you have created and applied the count-no-header firewall filter to the ge-0/0/0 interface. The commit operation fails.

What is causing this problem?

IPv6 interfaces do not support firewall filters.

The filter name must be different than the counter name.

The firewall term does not include inet6 in the from statement.

The firewall family is not correct.

220. Which of these configuration parameters alters the default next-hop selection of a static route?

no-readvertise

passive

preference

resolve

Page 23 of 24

221. Which two conditions must exist in a Junos device for traffic to transit the device to a specific destination? (Choose two.)

A routing table entry for that destination must exist

A firewall filter must exist to allow traffic to reach that destination

A forwarding table entry for that destination must exist

A routing policy must be in place on the device

222. Which command can be used to view the PICs and their serial numbers?

show chassis inventory

show chassis hardware

show chassis pic

show chassis interfaces

223. A firewall filter has been configured with a single term to match packets with source address in the 10.1.1.0/24 subnet. This term only includes the count action.

Which of these are true about traffic evaluated by this firewall filter? (Choose two)

Packets outside the 10.1.1.0/24 subnet will not be counted.

Packets outside the 10.1.1.0/24 subnet will be counted.

Packets outside the 10.1.1.0/24 subnet will be accepted

Packets outside the 10.1.1.0/24 subnet will be discarded.

224. Which class of IP's does 11.1.1.102 belong to?

Class E

Class B

Class C

Class D

Class A

225. A firewall filter has been configured with a single term to match packets with source address in the 10.1.1.0/24 subnet. This term only includes the count action.

Which of these are true about traffic evaluated by this firewall filter? (Choose two)

Packets within the 10.1.1.0/24 subnet will be counted.

Packets within the 10.1.1.0/24 subnet will not be counted.

Packets within the 10.1.1.0/24 subnet will be accepted.

Packets within the 10.1.1.0/24 subnet will be rejected.

226. Which keystroke combination allows users to move the cursor to the end of the command line without deleting text?

Ctrl + w

Ctrl + a

Ctrl + e

Ctrl + u

227. At which two layers of the OSI model does Ethernet operate? (Choose two.)

Physical Layer

Logical Layer

Data Link Layer

Transport Layer

228. What is the interface name for the third SONET interface on a PIC installed in PIC slot 1, FPC slot 1?

interface sonet-1/1/3

interface so-1/1/2

interface so-3/1/1

interface so-0/1/1.2

229. What is the initial prompt displayed when logging in as the root user?

root@router>

root@router%

root@router#

root@router*

230. Which two syslog files will be present in the configuration after factory-defaults have been loaded?

system and chassis

messages and interactive-commands

syslog-messages and NVRAM

authorization and events

Page 24 of 24

231. Which of these about routing tables are true? (Choose two)

Information learned from routing protocols is stored in the routing table.

Routing table is populated from the forwarding table.

Multiple routing tables can be configured on Junos devices.

The default IPv4 unicast routing table is inet.4

Comments (2)

YU-SHENG LIN September 4, 2022 Reply
I buy JN0-104 ,
65.Click the Exhibit button
The safer , easier way to help you pass any IT exams.
24 / 76
You are connecting to a new device in your network and are presented with the information
and prompt shown in the exhibit
Which three steps must be carried out to edit the configuration on this device? (Choose
three.)
A. Type configure at the > prompt.
B. Log in using the root user with no password.
C. Type cli at the = prompt D. Type cli at the > prompt
E. Log in using the root user with the root 123 password.
Answer: A,B
answer only two but is say (Choose
three.)
pls check this。
- dumps September 5, 2022 Reply
  I’m sorry for the inconvenience. The correct one is ABD.

[Updated in August] Juniper JN0-104 Exam Material

[Updated in August] Juniper JN0-104 Exam Material

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