Juniper JN0-104 Exam Questions have been Updated

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Juniper JN0-104 exam questions have been updated, which are the good guides for you to study the related topics. If you want to pass Juniper JNCIA-Junos JN0-104 exam is a short time, you can choose to learn the JN0-104. Free Juniper JNCIA-Junos JN0-104 exam updated questions are below.

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1. Which command will save the current active configuration as the rescue configuration?

user@router# save | rescue

user@router> request system configuration rescue save

user@router# save rescue configuration

user@router> file save rescue-configuration

2. Given the following configuration, set system authentication-order [ tacplus ] Which two statements are correct? (Choose two.)

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.

If the TACACS+ server is not available, the user is not allowed to access the device.

If the TACACS+ server is not available, the local user database is checked.

3. What are the commands when configuring an IP Address for a Fast Ethernet Interface? (Choose two)

set interfaces fe-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

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

4. 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.

5. What represents the decimal equivalence of 11100101?

177

229

6. Which two Junos product lines are used primarily for routing? (Choose two.)

J Series

M Series

MX Series

EX Series

7. 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

8. 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?

Power off and power on the device.

Establish an SSH connection to the loopback interface.

Connect to the console of the device.

Unplug the network cable and plug it back in.

9. Which two class-of-service classification methods are supported by Junos devices?

Choose two.

Multifield

Single field

Aggregated behavior

Behavior aggregate

10. A Junos device is configured with multiple routing protocols to the same destination prefix. By Default, which route will be active in the forwarding table?

A BGP route

An IS-IS route

A static route

An OSPF route

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11. Which of these commands can be used to verify the SSH configuration?

user@router> show configuration services

user@router# show system services

user@router#show system login

user@router# show configuration system services

12. What does the number inside the square bracket represent?

Local preference

Metric

Protocol reference number

Route preference

13. Which of these loopback types are supported for serial interfaces on Juniper devices? (Choose two)

Bidirectional

Remote

Far End

Local

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

chassisd

mgd

dcd

rpd

15. Which of these transfer methods can be used to archive the configuration of a Junos device? (Choose two)

SFTP

SCP

TFTP

FTP

16. Which of these is true about configuring more than one archival site?

The device will transfer using SCP before attempting FT

The device will transfer the configuration to each archival site.

The device will first attempt the transfer using the URL last configured.

The device will not transfer to a secondary site unless the previous site fails.

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

question mark

pipe character

18. 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

19. Which of these is true about Network Time Protocol on Junos?

The Junos OS does not support the use of a boot server.

MD5 authentication is supported.

The Junos OS can provide a primary time reference.

Server mode is not supported.

20. Which of these routing tables stores IPv4 unicast routes and is used by multicast routing protocols to prevent loops?

inet.3

inet.2

inet.0

inet.1

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21. Which of these about the Forwarding Table is true?

The forwarding table is stored only on the R

The forwarding table stores all known routes.

The forwarding table is stored both on the RE and PF

The forwarding table is only stored on the PF

22. 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

23. You configured an interface with an IP address and committed the change. You then added an exception in a firewall filter and committed the change. You realize that the change was made on the wrong device.

How do you undo all these changes?

rollback 1

rollback 0

rollback 2

rollback

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

show configuration interfaces I display detail

show configuration interfaces I display changed

show configuration interfaces I display set

show configuration interfaces I display inheritance

25. 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.

26. How do you send static routes to a RIP neighbor?

By default, RIP automatically sends static routes.

Configure the static route with a next hop of the RIP neighbor.

Configure redistribute static under the [edit protocols rip] hierarchy.

Apply an export policy within RIP that matches on the routes and then accepts them.

27. Which command can be used to view the current temperature of the Junos device components?

show chassis alarms

show chassis hardware

show chassis environment

show chassis temperature

28. You must archive log messages for an extended period of time for audit and troubleshooting purposes.

Which syslog setting should you configure on the Junos device in this scenario?

host

console

severity

facility

29. 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

30. 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

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31. Which statement is true about a forwarding table?

It stores a subset of information from the routing table.

It contains routes learned from all protocols to a destination.

It provides a database for routes selected and placed into the routing table.

Every routing protocol maintains its own forwarding table.

32. Which of these constitutes the forwarding plane?

Forwarding table

Routing table

PFE

33. Which two Junos product lines are used primarily for security? (Choose two.)

J Series

SRX Series

PTX Series

QFX Series

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

Monitor

Troubleshoot

Configure

Maintain

35. 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.

36. 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.

37. Which command gracefully shuts down the Junos OS?

request system reboot

request system logout

request system halt

restart gracefully

38. 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

39. Which layer of the OSI Model performs error checking?

Transport Layer

Physical Layer

Data Link Layer

Network Layer

40. Which command is used to define a router's host-name?

# set ip host-name <name>

# set system host-name <name>

> set system host-name <name>

> set ip host-name <name>

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41. Which of these commands can be used to send link-related SNMP trap notifications to the network management system (NMS) located at address 192.168.1.1? (Choose two)

set snmp trap-group MY-GROUP targets 192.168.1.1

set snmp trap-group MY-GROUP categories link

set snmp targets 192.168.1.1

set snmp trap-group MY-GROUP link-status

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

configure

enable

cli

edit

43. What are two configurable physical interface properties? (Choose two.)

link mode

protocol family

MTU

address

44. Which two statements are true about the Junos OS? (Choose two.)

There are two variants of the OS: one for service provider and one for enterprise.

All variants of Junos OS are based on the same base-level software.

Junos OS images are platform-specific.

All Junos platforms run the same image.

45. 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

46. What is an example of an exterior gateway protocol (EGP)?

OSPF

RIP

BGP

IS-IS

47. 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.

48. A Junos device is in a factory-default configuration and no host name is set.

What is used in place of a host name in this scenario?

router

Junos

user

amnesiac

49. What is the command to enable the 802.1Q protocol on interface ge-0/0/2?

[edit interfaces ge-0/0/2 unit I00]user@router# set vlan-tagging

[edit interfaces ge-0/0/2]user@router# set vlan-tagging

[edit interfaces ge-0/0/2 unit I00]user@router# set family vlan-tagging

[edit interfaces ge-0/0/2 unit I00]user@router# set dotlq

50. Which of these commands can be used to view the egress interface selected on the PFE for destination prefixes?

show route interface

show route table

show route forwarding-table

show route private

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

MAC address

duplex setting

protocol family

clocking

52. Which three statements describe the Transmission Control Protocol (TCP)? (Choose three.)

TCP is a transport layer protocol.

TCP is faster than the User Datagram Protocol (UDP).

TCP provides delivery notification and error-checking mechanisms.

TCP uses a best-effort delivery approach.

TCP application examples include HTTP and SMT

53. 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

54. Which of these are true about Layer 2 broadcast frames? (Choose two)

Layer 2 broadcast frames are processed by all devices on the same VLA

Layer 2 broadcast frames are relayed by switches to devices on the same VLA

Layer 2 broadcast frames are relayed by routers to all connected VLANs.

Layer 2 broadcast frames are discarded by routers that connect to multiple VLANs.

55. Which routing table is used for multicasting forwarding cache?

Inet.0

Inet.3

Inet.2

Inet.1

56. Which of these steps are part of the root password recovery process? (Choose three)

Reset the root password.

Reset the user passwords.

Run the recovery script.

Reboot the device.

Load factory-default configuration

57. 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

58. 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

59. Which IP Protocol number is assigned to TCP?

60. Which of these is true when the following command is issued?

telnet interface ge-0/0/0 192.168.1.1 source 10.1.1.1 bypass-routing

The bypass-routing parameter is ignored when using the private IP addressing.

The telnet session will connect to the target device's interface ge-0/0/0

Return traffic for the telnet session may not arrive at interface ge-0/0/0

The telnet session will have a source IP address of 192.168.1.1

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61. When configuring more than one archival site, which statement is true?

The system will first attempt the transfer using the URL configured last.

The system will transfer the configuration to each archival site.

The system will not transfer to a secondary site unless the previous site fails.

The system will transfer using secure copy protocol (SCP) before attempting FT

62. 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.

63. What are three requirements to perform an in-service software upgrade (ISSU)?

Choose three.

The device must have dual Routing Engines.

Nonstop active routing (NSR) must be disabled.

The command request system software issue add must be used to upgrade the software.

The master and backup Routing Engines must be running the same software release.

Graceful Routing Engine switchover (GRES) must be enabled.

64. Which device or function is typically used to break up individual broadcast domains?

bridge

router

switch

hub

65. Which OSPF packet type is sent when an OSPF router detects its database is stable?

link-state request

database description

hello

link-state acknowledgment

66. 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

67. Which two Statements about the junos OS are true? (Choose two )

It uses a different software source code base for each platform

It supports Mk for automation on all platforms

It supports XML for automation on all platforms.

It uses the same software source code base for all platforms

68. What is the purpose of a network mask?

It is used to identify the maximum hop count of a subnetwork.

It is used to identify an IP address as either private or public.

It is used to identify the network to which an IP address belongs.

It is used to identify the total number of bits present in an IP address.

69. What is the default export routing policy for BGP?

Accept all active IGP routes.

Accept all active BGP routes.

Accept all BGP routes.

Accept no routes.

70. What is the location of the interface ge-0/1/5?

Port 1 of a Gigabit Ethernet PIC in slot 0 on FPC 5

Port 5 of a Gigabit Ethernet PIC in slot 1 on FPC

Port 5 of a Gigabit Ethernet PIC in slot 0 on FPC 1

Port 1 of a Gigabit Ethernet PIC in slot 5 on FPC 0

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71. Which command can be used to upgrade the current software of the Junos device?

request system software upgrade

request system software add

request system software install

request system software replace

72. Which operational command allows viewing of only OSPF routes?

show ip ospf route

show ip route protocol ospf

show route protocol ospf

show ospf table

73. 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.

74. What are the two examples of exception traffic? (Choose two)

SCP traffic that is destined for the router`s loopback interface.

SFTP traffic that enters and exits the same interface on the local routers.

SFTP traffic that enters one interface and is destined for a local physical interface

SCP traffic that enters one interface and exits another interface on the local router

75. You have been allocated a 192.168.100.0/22 network.

How many usable hosts are available?

510

512

1022

1024

76. Assuming both paths shown in the exhibit are available, which statement is correct?

[edit routing-options]

user@router# show

static {

route 0.0.0.0/0 {

next-hop 10.1.1.1;

qualified-next-hop 10.1.1.254 {

preference 4;

}

}

}

Traffic matching the default route will use 10.1.1.1 as the next hop.

Traffic matching the default route will use 10.1.1.254 as the next hop.

Traffic matching the default route will be load-balanced per packet across both next hops.

Traffic matching the default route will be load-balanced per flow across both next hops.

77. Referring to the exhibit, what is the expected behavior for login attempts from users that receive a reject form from both the RADIUS and TACACS+ servers?

Users are prompted for a local authentication password.

Users are not prompted for a local authentication password.

Users are prompted for the root authentication password.

Users are granted limited access to the device using a guest account.

78. What are three characteristics of Layer 2 switches? (Choose Three)

Layer 2 switches separates multicast domains.

Layer 2 switches separates collision domains.

Layer 2 switches forward traffic addressed to hosts that reside on that same collision domain

Layer 2 switches forward traffic addressed to hosts that reside on that different collision domain

Layer 2 switches forward broadcast traffic.

79. What represents the decimal equivalence of 10100101?

127

165

80. 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

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81. Which Junos mode should you use to view the status of interfaces on a router?

monitoring

private configuration

operational

configuration

82. Referring to the exhibit, which statement is true?

The customer has set the version parameter to automatic

The customer has not enabled security for BFD

The customer's link will failover in nine seconds

The customer's link flapped within the last hour

83. What are the usable hosts on the 96.6.128.0/19 network?

96.6.128.1 through 96.6.143.254

96.6.128.128 through 96.6.134.254

96.6.128.0 through 96.6.134.254

96.6.128.1 through 96.6.159.254

84. Which information would you find using the CLI help function?

message of the day

tip of the day

explanation for specific system log error messages

explanation for specific traceoptions log messages

85. Which statement is true when using the allow command and deny command attributes when creating user permissions?

If you allow and deny the same commands, the Junos OS will fail the commit check.

If you allow and deny the same commands, the allow command permissions take precedence over the deny command permissions.

If you specify a regular expression for allow and deny with two variants of a command, both will be ignored.

The all login class permission bits take precedence over allow and deny when a user issues the rollback command.

86. Select the SONET network elements that are used for troubleshooting (Choose three.)

circuit

line

section

path

segment

87. Which keystroke is used to auto-complete user-defined variables?

Spacebar

Tab

Home

Esc

88. If the Packet Forwarding Engine (PFE) does not have a route to the destination address of a packet, which action does it take?

The PFE floods the packet out of all interfaces.

The PFE drops the packet and sends an ICMP destination unreachable notification back to the source device.

The PFE forwards the packet to the Routing Engine for further processing.

The PFE queues the packet and sends a request to the Routing Engine for a Layer 3 lookup.

89. 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

90. You want to upgrade between two different Junos OS releases with no disruption to the control plane.

Which software upgrade command should you perform?

request system software validate

request system software add

request system software in-service-upgrade

request system software delete-backup

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91. Which of these is true about using the reject parameter as the next-hop value for a static route? (Choose two)

The packet is sent back to the source.

The packet is dropped and the packet source is marked with no-readvertise.

The packet is dropped from the network.

An ICMP message is sent back to the source of the packet.

92. Which of these will happen if a packet is evaluated against user-defined terms within a firewall filter and no match is found?

The filter will discard the packet and take no additional action.

The filter will reject the packet and send an ICMP message back to the sender.

The filter will permit the packet and take no additional action.

The filter will permit the packet and write a log entry to the firewall log.

93. Which two statements are correct about the disable command and the deactivate commands? (Choose two.)

If the interface is disabled, the logical unit will administratively shut down.

If the interface is deactivated, the physical interface will administratively shut down.

If the interface is deactivated, the interface configuration is ignored during commit.

If the interface is disabled, the logical unit configuration is ignored during commit.

94. Which protocol supports tunneling of non-IP traffic?

SSH

IPsec

IP-IP

GRE

95. A packet has a source IP address of 20.2.2.1 and a destination address of 10.1.1.1.

Given the firewall filter shown in the exhibit, which configuration change should be made to the filter so that this packet will be counted and discarded?

rename term 4 to term 1

rename term 1 to term 5

insert term 4 before term 1

insert term 4 before term 3

96. What are the acceptable modifiers to a terminating action nf a firewall flter? (choose three)

Policer

Count

Log

Discard

Syslog

97. In dotted decimal notation, what is equivalent of 11001100 10111011 00110010 00111110 ?

204.187.50.62

212.188.118.66

236.146.223.167

240.4.120.96

98. Which of the following is a valid command to view the status of an interface?

> show interfaces fe-0/0/0 extensive

> show interfaces fe-0/0/0 status

> show interfaces fe-0/0/0 verbose

> show interfaces fe-0/0/0 health-info

99. Which command will drop a matching packet and send out a notification message?

set routing-options static route 10.1.1.1/32 no-retain

set routing-options static route 10.1.1.1/32 discard

set routing-options static route 10.1.1.1/32 reject

set routing-options static route 10.1.1.1/32 no-install

100. In which mode can you configure a device running Junos?

privileged

configuration

monitoring

operational

Page 11 of 22

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

ps -x

passwd

ls -a-l

tcpdump

102. Which of these is true about Junos OS?

All platforms running the Junos OS use the same source code base.

All platforms running the Junos OS use the same PF

All platforms running the Junos OS use a separate process with protected memory space for each routing protocol.

All platforms running the Junos OS use a hard drive to optimize syslog data storage.

103. Which of these authentication methods are supported on a Junos device? (Choose three)

local password authentication

TACACS+

RADIUS

LDAP

ACE

104. Which statement is correct about a routing policy term?

A term must contain a "from" statement.

A term acts like "if" and "then" statements.

The most specific term has precedence.

Terms can be written in any order to achieve the same behavior.

105. Which command can be used to quickly determine the administrative status of all interfaces on a Junos device?

show interfaces extensive

show interfaces terse

show interfaces status

show interfaces detail

106. 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.

107. 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

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

SNMP

hostname

root password

user password

management access interface

109. Which three statements are true regarding the candidate configuration?

The candidate configuration is a temporary configuration that might become the active configuration.

A candidate configuration is initially populated with the configuration currently active on the system.

Changes to the candidate configuration take effect immediately.

The candidate configuration becomes the active configuration after a system reboot.

The configure private command allows concurrent editing of a candidate configuration by multiple users.

110. Which routing table is used for IPv6 unicast routes by default?

inet.0

inet.1

inet.3

inet6.0

Page 12 of 22

111. Using the routing table shown in the exhibit, what will be the next-hop IP address used for a packet with a destination IP address of 192.168.1.232?

Click the Exhibit to see a larger version.

10.20.14.130

10.18.1.1

10.20.14.131

10.20.106.10

112. Which character indicates that you're at the configuration mode?

113. Which key could you use to auto-complete a command in the Junos CLI?

Delete

Ctrl+Z

Spacebar

Right Arrow

114. Which of these commands will allow you to enter operational mode from the shell mode?

configure

cli

exit

edit

115. What is the purpose of a subnet mask?

It is used to identify the total number of bits present in an IP address.

It is used to identify an IP address as private or public.

It is used to identify the network to which an IP address belongs.

It is used to identify the maximum hop count of a subnet.

116. 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

117. Which of these commands shows ONLY interfaces that are administratively and operationally up?

show interfaces terse | except up

show interfaces terse | except down

show interfaces terse | match up

show interfaces terse | match down

118. Which protocol creates a complete database of the network topology prior to calculating the optimal route?

BGP

PIM

OSPF

RIP

119. Which of these are true about terms in a routing policy? (Choose two)

If a term does not contain the from statement, Junos will not allow a commit operation.

If a term does not contain the from statement, all routes will match.

A routing policy can have only one term.

A then statement may be missing from a term.

120. Which operational command is a valid way to view the status of an interface?

show interfaces fe-0/0/0 extensive

show interfaces fe-0/0/0 status

show interfaces fe-0/0/0 health-info

show interfaces fe-0/0/0 verbose

Page 13 of 22

121. Which two statements are correct about routing tables in a Junos device? (Choose two.)

There are separate tables for IPv4 and IPv6 called inet.0 and inet6.0, respectively.

They only contain the best possible route to each destination.

All running protocols can populate the routing tables at the same time.

Routes with the highest preference value are placed as active routes in the routing table.

122. What are two functions of the RE?

to maintain routing tables

to forward traffic toward its destination

to manage the PFE

to implement various services such as policing, stateless firewall filtering, and class of service

123. Which of these prompts will you see when you log in as root?

root%

root>

root#

124. When using class of service (CoS), what is the benefit of configuring loss priority?

It can be used by other CoS components to drop certain traffic on ingress.

It can be used to define bandwidth allocation for certain traffic on egress.

It can be used to assign new CoS values to certain traffic on ingress.

It can be used by other CoS components to drop certain traffic on egress.

125. With regard to the Junos software architecture, which two of the following are found on all Junos devices? (Choose two.)

multiple software daemons

separation of control and forwarding

separate management interface (fxp0)

application-specific integrated circuits (ASICs)

126. 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

127. When a system process encounters an error, how does the Junos OS protect the other processes from being impacted?

Each routing protocol runs as an individual process.

Each process operates in its own shared memory space.

The Junos OS executes multiple processes simultaneously.

The Junos OS executes only one process at a time.

128. What will the command ping 192.168.1.1 size 5 perform?

It sends five rapid ping requests to 192.168.1.1

It sends a continuous ping with packet length of five bytes to 192.168.1.1

It sends a continuous rapid ping with a packet length of five bytes to 192.168.1.1

It sends exactly five ping requests to 192.168.1.1

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

RE only

Both RE and PFE

Neither RE, not PFE

PFE only

130. The marketing team needs access to a server on subnet 172.0.46.0/24. The next-hop router is 10.0.4.2/30. A static route on their 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

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 no-readvertise

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

Page 14 of 22

131. Which of these commands can be used to ping from the configuration mode?

user@router# ping 192.168.1.1

user@router# try ping 192.168.1.1

user@router# do ping 192.168.1.1

user@router# run ping 192.168.1.1

132. 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

133. What are two logical interface properties? (Choose two.)

duplex

IP address

DLCI

speed

134. Which of these are true about the default protocol preference values? (Choose two)

OSPF's preference value is lower than BG

OSPF has a single preference value for both internal and external routes

Both direct and local routes have the same preference value.

OSPF internal routes have a lower preference than static routes.

135. Which set of IP addresses are in the same subnet?

185.114.16.59/28 and 185.114.16.64/28

185.114.16.91/28 and 185.114.16.96/28

185.114.16.77/28 and 185.114.16.82/28

185.114.16.40/28 and 185.114.16.45/28

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

size

TCP port

packet loss

CRC

137. 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

138. How does the PFE handle unicast transit traffic destined for an entry that exists in the forwarding table?

It forwards the traffic to the local system for further processing

It forwards the traffic through one egress port towards its destination

It forwards the traffic through multiple egress ports

It forwards the traffic through an internal link to the RE

139. What is a function of the PFE?

to generate forwarding tables

to apply stateless firewall filters

to generate protocol control traffic

to monitor chassis components

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

network permission

maintenance permission

supervisor permission

shell permission

Page 15 of 22

141. 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

142. What represents the decimal equivalence of 11100111?

195

223

230

231

143. 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.

144. Which of these are true about firewall filter configurations? (Choose two)

The default term within a firewall filter uses the reject action.

The default term within a firewall filter uses the discard action.

The same term can include only a single action modifier.

The same term can include multiple action modifiers.

145. You are at the top of the hierarchy and you must configure OSPF on interface ge-0/0/0 unit 1.

Which of these will achieve the result? (Choose two)

[edit] user@router# set protocols ospf area 0 interface ge-0/0/0.1

[edit] user@router# set protocols [edit] user@router# set ospf area 0 [edit] user@router# set interface ge-0/0/0.1

[edit] user@router# edit protocols

[edit protocols] user@router# set ospf area 0 interface ge-0/0/0.1 [edit] user@router# edit protocols ospf interface ge-0/0/0.1

146. 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

147. Which of these is the default import routing policy for OSPF?

Accept all OSPF routes and install them into the inet.0 routing table.

Accept all OSPF routes and install them into the inet.6 routing table.

Accept all OSPF routes and install them into the inet.3 routing table.

Accept all OSPF routes and install them into the inet.4 routing table.

148. Which of these commands can be used to write the candidate configuration to an ASCII file?

user@router# run save /var/tmp/current.conf

user@router# save /var/tmp/current.conf

user@router# commit /var/tmp/current.conf

user@router# write /var/tmp/current.conf

149. 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.

150. You are considering an upgrade from 19.1R1 and want to ensure that only bug fixes are included.

Which two software versions should you consider in this situation? (Choose two.)

19.3R1-S1

19.3R2

19.1R3

19.1R1-S2

Page 16 of 22

151. A network admin would like to check the compatibility of the new software to be installed before the installation starts.

Which argument can be used with the request system software add command to perform this?

verify

check

validate

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

no-readvertise

passive

preference

resolve

153. 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

154. In the MAC address ac:bc:32:a3:4b:7b, what represents the Organizationally Unique Identifier (OUI)?

bc:32:a3

a3:4b:7b

ac:bc:32

32:a3:4b

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

configure exclusive

configure Private

configure dynamic

configure batch

156. Which two CLI commands allow you to move between different configuration hierarchies? (Choose two.)

move

edit

157. What does "ge" represent for the interface ge-0/0/0.0?

Aggregated Ethernet

GRE

FastEthernet

Gigabit Ethernet

158. 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.

159. Which CLI mode allows you to make configuration changes?

shell mode

configuration mode

operational mode

enable mode

160. When is the BA Classifier engaged for identifying the forwarding class of traffic in a Juniper router?

after a packet is identified by a multifield classifier

after the traffic passes though a shaper

prior to ingress policing of traffic

while the packet is stored in the switching fabric of the router

Page 17 of 22

161. How many IP addresses can be configured on a given interface?

one primary and one secondary

one

as many as you want

one primary and multiple secondary

162. 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

163. Which two statements are true about firewall filter configurations? (Choose two.)

Multiple action modifiers can be included in the same term.

Only a single action modifier can be included in the same term.

If an action modifier exists without a terminating action, matching packets will be accepted.

If an action modifier exists without a terminating action, matching packets will be discarded.

164. Which operating system does Juniper MX series router use?

Junos OS

IOS

UNIX

MX-OS

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

2048

2044

1024

2046

166. 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.

167. 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

168. Which character indicates that you're at the shell mode?

169. By default, under which directory is syslog information stored?

/var/tmp

/var/syslog

/var/log

/var/messages

170. Which of these are routing tables found by default? (Choose three)

inet.3

inet.6

inet.0

inet4.0

inet6.0

Page 18 of 22

171. Which of these about exception traffic is true?

The internal link rate-limits exception traffic to protect the R

When congestion occurs, exception traffic is not prioritised.

Only PFE is responsible for handling exception traffic.

Forwarding tables are used to forward exception traffic.

172. You are in configuration mode at the top of the hierarchy.

How would you save your configuration to a file on the router?

save configuration <filename>

save config <filename>

save <filename>

save run <filename>

173. Which two firewall filter actions will affect a packet's class-of-service setting? (Choose two.)

scheduler

queue

forwarding-class

loss-priority

174. Which of these must be configured prior to the first commit after factory defaults are loaded?

hostname

default gateway

management services

root authentication

175. Which of these indicates that you're in operational mode?

user@router%

user@router*

user@router>

user@router#

176. Referring to the exhibit, which next-hop interface will be used to reach the 10.21.14.16 destination?

ge-0/0/1.0

ge-0/0/0.0

ge-0/0/3.0

ge-0/0/2.0

177. What are two Junos processes?

OSPF SPF daemon (ospfd)

SNMP daemon (snmpd)

BGP daemon (bgpd)

Routing protocols daemon (rpd)

178. Which logical unit number must be configured on an interface using PPP encapsulation?

unit 0

unit 1

unit 100

unit 255

179. Which operational mode command can be used to synchronize the local system time with an NTP server having IP address 1.1.1.1?

set date ntp 1.1.1.1

set time 1.1.1.1

set clock ntp 1.1.1.1

set ntp time 1.1.1.1

180. Which of these statements about Junos design are true? (Choose two)

one hardware platform for all software applications

separation of control and forwarding planes

modularisation of multiple software processes

separation of routing and security policies

Page 19 of 22

181. Which of these statements about subnet masks are true? (Choose two.)

If a bit is turned off (0), the corresponding bit in the IP Address is used for the host portion.

If a bit is turned off (0), the corresponding bit in the IP Address is used for the network prefix.

If a bit is turned on (1), the corresponding bit in the IP Address is used for the network prefix.

If a bit is turned on (1), the corresponding bit in the IP Address is used for the host portion.

182. Which command will show files stored in the /var/home/lab directory?

lab@router> file list

[edit] lab@router# rollback ?

lab@router> ls

lab@router> file show

183. What are three examples of exception traffic? (Choose three.)

OSPF protocol updates

SNMP traffic destined to the Junos device

Packets with special IP options fields

Unicast and multicast packets destined to another router

184. You have configured an SRX Series device for the first time. When you commit your configuration, the Junos OS notifies you that you cannot yet commit your configuration.

Which configuration step must you complete?

date/time

root authentication

security policies

hostname

185. What is the binary equivalent of 96.6.231.148?

10101000 11001000 10101001 10101001

01100000 00000110 11100111 10010100

01010000 00010110 11010101 10100110

01100100 00100101 11100100 10010111

186. 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

187. A packet enters a Junos device. No matching destination entry exists in the forwarding table.

How will the device respond?

The PFE responds to the source with a destination unreachable notification message.

The PFE responds to the destination with a source unreachable notification message.

The RE responds to the source with a destination unreachable notification message.

The RE responds to the destination with a source unreachable notification message.

188. 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

189. You are attempting to upgrade the Junos OS on your device, but there is not enough space to complete the upgrade.

Which parameter, added to the request system software add command, would solve the problem?

force

no-copy

validate

no-validate

190. How does the PFE determine how to forward transit traffic?

The PFE determines network destinations itself based on the RE's routing table

The PFE uses the forwarding table provided by the RE

The PFE performs a destination lookup based on its own routing table

The PFE uses the routing table provided by the RE

Page 20 of 22

191. xe-0/0/0 up down

The interface is up but has been administratively turned off.

The interface is administratively up but the link status is down.

Layer 1 on the interface is up but Layer 2 is down.

Layer 2 on the interface is up but Layer 3 has not been configured.

192. Which statement is true about a virtual router routing instance?

It can be used to create a separate routing table.

It can be used for Layer 3 VPN implementations.

It automatically has import and export policies applied.

An interface in the routing instance can also reside in the default routing instance.

193. Which command would initiate a loopback on a Gigabit Ethernet interface ge-0/0/0?

# set interfaces ge-0/0/0 unit 0 loopback

# set interfaces ge-0/0/0 gigether-options loopback

> set interfaces ge-0/0/0 loopback

> loopback ge-0/0/0

194. 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

195. 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

196. Which two statements are true about the rescue configuration file? (Choose two.)

It gets updated automatically when you commit.

You need to create it using the command request system configuration rescue save.

It is rollback file number 50 and you can recover it by issuing rollback 50.

You can load it by entering rollback rescue.

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

OSPF must operate between different autonomous systems.

OSPF is a link-state IG

OSPF calculates the best path to each destination.

OSPF uses areas to incorporate hierarchy and allow for scalability.

OSPF uses a distance-vector algorithm to calculate routing cost.

198. You issue a "request system zeroize" command.

Which statement is correct in this scenario?

All data files are deleted and all configuration settings remain unchanged

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

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

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

199. Which of these commands can be used to shutdown a logical interface upon committing? (Choose three)

delete

disable

stop

shutdown

deactivate

200. When considering the Junos 14.2R3.2 release, what is the correct order for each designator?

[year of release] . [main release number] [version] [minor release number] . [spin number]

[main release number] . [minor release number] [software release] [build number] . [spin number]

[year of release] . [minor release number] [software release] [build number] . [spin number]

[main release number] . [build number] [software release] [minor release number] . [spin number]

Page 21 of 22

201. What are three functions of the RE? (Choose three.)

to monitor the chassis

to maintain the forwarding tables

to implement policing

to enforce stateless firewall filters

to manage the PFE

202. Which of these is true about routing tables on a Junos device?

They purge routes not marked as active routes.

They are found in the Routing Engine and Packet Forwarding Engine.

They populate the forwarding table.

They are designed to handle only dynamic routing protocols.

203. Which operational command allows you to quickly verify the state of all physical and logical interfaces?

show interfaces summary

show interfaces terse

show interfaces brief

show interfaces routing

204. Which operational mode command can be used to view detailed interface status, properties, statistics, errors and CoS packet counters?

show interfaces extensive

show interfaces

show interfaces status

show configuration interfaces

205. You successfully established a BGP session with a peer, but do not see any routes learned from the peer.

What would cause this problem?

A routing policy is blocking BGP from learning the routes

A security policy is blocking BGP from learning the routes

Unicast reverse-path-forwarding is blocking BGP from learning the routes

The firewall filter is blocking BGP from learning the routes

206. Which three actions are required to perform a unified in-service software upgrade (ISSU)? (Choose three.)

Enable graceful Routing Engine switchover (GRES).

Verify that the REs and protocols are synchronized.

Issue the request system software in-service-upgrade command on the backup R

Enable graceful restart.

Issue the request system software in-service-upgrade command on the master R

207. What is the default protocol preference for OSPF internal routes?

160

150

208. 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

209. 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

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

reject

community add

next term

next policy

Page 22 of 22

211. Which of these applications would be best suited for UDP Traffic?

Web browsing

Downloading a program

Streaming television shows

On-line shopping

212. Which of the following option is correct regarding the configuration shown below?

static route 0.0.0.0/0 qualified-next-hop 172.30.25.1 preference 7 next-hop 172.30.25.5

The next-hop 172.30.25.1 is selected because it is the lowest protocol preference.

The next-hop 172.30.25.1 is selected because it is listed first.

The next-hop 172.30.25.5 is selected because it is the lowest protocol preference.

The next-hop 172.30.25.1 is selected because the address has the lowest value.

213. Which of these commands will save the current active configuration as the rescue configuration?

user@router# save rescue configuration

user@router> request system configuration rescue save

user@router> file save rescue-configuration

user@router# save | rescue

214. What configuration parameter on a Junos device modifies the default next-hop resolution behavior of a static route?

Resolve

Preference

No-readvertise

Passive

Comments (3)

durhan February 22, 2022 Reply

in the dump question Nr.528 has no answer. Do someone knows the correct answer?

528.Which of these is incorrect?
A. A route filter can be used in multiple terms in a single policy or in different policies.
B. A prefix list is a list of prefixes.
C. A route filter is a list of prefixes.
D. A prefix list can be used in multiple terms in a single policy or in different policies.
Answer:
- dumps February 23, 2022 Reply
  
  hi, the answer is A.
andrey February 2, 2022 Reply

30. 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 matchcorrect
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

D is the correct answer , not A.

Juniper JN0-104 Exam Questions have been Updated

Juniper JN0-104 Exam Questions have been Updated

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