Real H12-223_V2.5 HCIP Routing & Switching Exam Dumps

dumps2021-11-20T02:57:54+08:00

H12-223_v2.5 exam is a required test for HCIP Routing & Switching V2.5 certification. If you are planning to earn this certification, you need to take and pass H12-223_V2.5 exam. We provide the latest and real HCIP Routing & Switching V2.5 H12-223_V2.5 exam dumps, which are your big helper in the preparation. Free updated Huawei H12-223_V2.5 exam dumps questions are available below.

Page 1 of 9

1. About network maintenance, which of the following statement is correct? (Multiple choice)

Routine maintenance is a routine plan

Routine maintenance belong PDIOI in the optimization phase (Improve work) of

Routine maintenance is event-driven work

The handling of some problems in the troubleshooting work may be incorporated into the daily maintenance work

2. Device operation flow shelves is first prepared and then the tool mounting ears, according to the site to install floating nuts and guide rails, and finally the device is mounted to the cabinet

True

False

3. As a link state routing, ISIS is widely used in large and medium-sized networks. Which of the following statements is wrong?

ISIS is compatible with other network layer protocols by extending TLV

ISIS supports L2 and L1 areas, which is more suitable for flat network deployment

ISIS messages are encapsulated in Layer 2 data frames, which improves the security of routing message interaction

ISIS uses ISPF algorithm for route recalculation when routing changes

4. Which of the following descriptions about network maintenance are correct? (Multiple choice)

The handling of some problems in the troubleshooting work can be incorporated into the daily maintenance work

Routine maintenance belongs to the optimization phase (Improve) of PDIOI

Routine maintenance is a routine work

Routine maintenance is event-driven work

5. The security policy of the firewall is delivered to the interface instead of being delivered to the inter-zone.

True

False

6. About Huawei network optimization services, which of the following options is correct? (Multiple choice)

Improve network availability and performance

Increase productivity

Reduce costs

Realize knowledge transfer

7. Since Huawei data communications products, software upgrade operations are similar, so before upgrading the software, just read the brief instructions to upgrade.

True

False

8. If faced with a complex network failure, and after a short time cannot be completed to assess the main troubleshooting, at a time when urgent need to restore user and network availability, so which is correct?

Tell the user that this is impossible

Directly build an alternative network environment

Communicate with users whether it is possible to skip the faulty node and build an alternative network environment.

Try to eliminate the fault first, and then communicate with the user if the fault cannot be resolved after a while

9. Which of the following options is the work that needs to be done at the project planning stage? (Multiple Choice)

Determine the technical plan

Understand the project background

Choose network products

Determine project requirements

Plan IP address

10. In the process of daily troubleshooting, engineers may need to check some alarm information of the device. By executing the terminal command, turn on the terminal to display the debugging/log/alarm information sent by the information center. (Please use English lowercase letters to complete the command, and the command cannot be abbreviated)

Page 2 of 9

11. What should to do after completing the network cutover?

After finishing the information, leave the cutover site

E-mail notification to relevant personnel of the completion of the cutover

Test whether the network equipment and application system are operating normally

Charge the backup power

12. In the Eudemon firewall, which of the following data flows are defined as the outbound direction? (Multiple choice)

Data flow from Trust domain to DMZ domain

Data flow from Untrust zone to DMZ zone

Data flow from Local domain to Trust domain

Data flow from the Untrust zone to the Local zone

13. In the network, due to malicious attacks or mistake operation of the administrator, the legitimate switching equipment receives the configuration BPDU with higher priority, which causes the original legitimate root bridge to lose the root bridge attribute, and changes in the network topology cause network congestion. It is necessary to prevent When this happens, which protection mechanism does the administrator usually choose?

Root protection

Prevent TC-BPDU attacks

BPDU filter

BPDU protection

14. Device as SSH server, you must configure the local key pair

True

False

15. What are the main contents of the project implementation plan? (Multiple choice)

Time planning

Staffing

Cutover process

Risk control measures

16. When using the OSPF routing protocol in the campus network, engineers often change the OSPF network type of the Ethernet interface from the default broadcast multiplex network to a point-to-point network. What is the main purpose of this configuration?

Simplify the link state database

Enhance network security

Prevent loops

Save neighbor establishment time

17. High-risk operation refers to all equipment that may affect the stable operation of the normal operation of the customer's business, or network operating properly monitored.

True

False

18. When the BGP routing protocol is configured in the network, a route entry can be seen by using the command to view the bgp routing table on the router, but the BGP route cannot be found in the global routing table of the router. What are the possible reasons? (Multiple choice)

bgp-rib-only is used on the BGP router

The next hop of the BGP route is unreachable

There are other routing entries with higher priority in the global routing table

The AS-PATH of the BGP route contains its own AS ID

19. The high-risk operation plan is generally approved and finalized one day before implementation.

True

False

20. As shown in the figure, network administrator A can control the path of traffic entering AS100 after modifying the IED value of the routing entry sent to R2 on the R1 router through the routing policy.

True

False

Page 3 of 9

21. When troubleshooting a network fault, you locate the fault location on a router. This router and another router in the network are mutually redundant. Then which of the following troubleshooting methods is most suitable?

Comparative configuration method

Bottom-up approach

Confirm business traffic path

Top-down method

22. Which of the following is not included in the main role of the project delivery process?

Increase customer satisfaction

Reduce project risks

Improve work efficiency

Clear division of responsibilities

23. What characteristics must the high-risk operation plan require? (Multiple choice)

Strong operability

Verification

Can go back

Precision

24. The Layer 2 loop in the network often causes equipment downtime.

The three-layer loop generally only increases the CPU load, mainly because the three-layer loop can be alleviated by which of the following mechanisms?

DSCP

TTL

Mac Address

IP Address

25. Which of the following operations may affect the normal operation of the customer's network? (Multiple choice)

Hardware expansion

Device naming

Software upgrade

Routing protocol configuration changes

26. Network failure on the structured described negative acknowledgment failure phase of the process, which of the following statements is correct?

Should pay attention to how to better solve the fault, regardless of whether the fault is within the scope of their own responsibility

Pay attention to the user’s opinions and judge the fault based on the user’s judgment

The impact should be minimized and try not to let others know that the network is malfunctioning

Should confirm whether the troubleshooting work is within the scope of their own responsibility

27. Coaxial cable typically used to carry video signals, data signals cannot be carried

True

False

28. As an effective security mechanism, DHCP SNOOPING can prevent which of the following attacks? (Multiple Choice)

Prevent DHCP spoofing attacks

Prevent DOS attacks on the DHCP server

Prevent MAC address flooding attacks

Combine the DAI function to check the source MAC address of the data packet

Combine the IPSG function to check the source IP address of the data packet

29. As shown in the figure, all interfaces of the router enable OSPF, and the cost value of the link is identified in the figure. The Loopback0 interface of R2 is advertised in area 1. Which of the following is the cost value of R1 reaching 10.0.2.2/32?

200

150

100

30. In a broadcast network, if the DR priority of the interconnection interface of two routers is set to 0, which state will the OSPF neighbor stay in?

Full

DOWN

2-way

Exchange

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31. When using the display cpu-usage to view the CPU utilization of the switch, it is found that the VIDL item reaches 90%. What does it mean?

The temperature of the device may be too high

The device may have a loop

This item represents the CPU idle rate of the device, 90% indicates that the device is operating normally

The device may be attacked by DDOS

32. When there are a large number of IP telephones and WLAN APs in the network, which function switch will we generally consider?

Switches with STP edge port function

Switch with POE function

Switches with SACG function

Switch with QOS function

33. When upgrading the equipment software, which statement about the operating window time is wrong?

Determined by the user's service interruption time

The time must be greater than the execution time of the upgrade operation

Allow a certain amount of time for troubleshooting

The operating window time only needs to be notified to the network maintenance personnel, not to the user.

34. Which of the following statements about the DHCP Server counterfeiter attack are correct? (Multiple choice)

The DHCP Server counterfeiter attack sends the wrong IP address and network parameters to the terminal by counterfeiting the DHCP server, causing users to be unable to access the Internet

After the DHCP snooping function is enabled on the Huawei switch interface, the interface is in a trusted state by default

Using the DHCP snooping function on the Huawei Layer 2 access switch and enabling the trusted interface can effectively ensure that the client obtains the IP address and network parameters from the legal DHCP Server

A DHCP counterfeiter server can affect multiple terminals in different broadcast domains and cannot obtain correct IP addresses and network parameters

35. There is no concept of forwarding plane, control plane and management plane in traditional IP network in SDN.

TRUE

FALSE

36. DHCP Snooping can work with IPSG to solve source IP spoofing attacks.

True

False

37. Ethernet is a network supporting broadcast network, once the network has a loop, this simple broadcast mechanism will lead to disastrous consequences. Which of the following phenomena may be caused by loops? (Multiple Choice)

The device cannot log in remotely

When using the DISPLAY INTERFACE command on the device to view the interface statistics, it is found that the interface has received many broadcast-packets

CPU usage exceeds 70%

Severe packet loss during network testing through the PING command

38. Ethernet is currently the most mainstream local area network. What factors usually need to be considered when selecting an Ethernet network? (Multiple choice)

Network speed

Network media

Network size

Network hierarchy

Packaging standards

39. What are the working modes of the Eudemon firewall? (Multiple choice)

Routing mode

Transparent mode

Exchange mode

Mixed mode

40. What are the main difficulties in cutover? (Multiple Choice)

Minimize the scope of business impact

Do the best in risk avoidance

Develop a complete cutover plan

Profit execution cutover

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41. A network engineer outputs the following information when troubleshooting OSPF protocol failures. Based on this, determine what causes the adjacency relationship cannot be established normally?

The area code does not match

Inconsistent process numbers

Router-ID conflict

The IP address of the interface is inconsistent

42. On Monday morning, you received a phone call at the office seat, an employee said he could not through the PC to access the Internet, you want to get technical support. So you use the ping command on his PC to test, and use the tracert command to see where the packet is lost.

Which of the following methods of network troubleshooting belong to ?

Comparative configuration method

Bottom-up approach

Confirm business traffic path

Self-term down method

43. In a complex network environment, the use of non-institutionalized network troubleshooting procedures may lead to new failures, which will make the troubleshooting of network failures more difficult.

True

False

44. During the two sessions, a network administrator of a government department discovered that there was a network cable interface on the backup firewall of the egress firewall showing an abnormal connection. A preliminary judgment was made that replacing the network cable can solve this problem. What would you do if you were the administrator?

If it is judged that there is a problem with the network cable, send an email to inform the relevant personnel, and then replace the network cable

The priority of the firewall's backup link failure is low, and changes are not considered

Further analyze the cause of the abnormal interface connection, and if necessary, contact the original manufacturer's engineer to complete the troubleshooting

No changes can be made during the two sessions

45. In the exclusion of same VLAN within the fault cannot communicate, which of the following is not necessary?

Execute the display interface interface-type interface-number command in any view to view the operating status of the ports that need to communicate

Run display mac-address on the Switch to check whether the MAC address learned by the device, the interface corresponding to the MAC address, and the VLAN to which it belongs are correct

Execute display vlan vlan-id in any view to check whether the VLAN where the ports that need to communicate has been created

Execute the display current-configuration command to view the PCB version number and software version number information of the board.

46. VRRP does not support authentication.

TRUE

FALSE

47. What are the current popular cabling methods in data centers? (Multiple choice)

TOR

DOD

THEIR

PHP

NSF

48. What are the main tasks in the acceptance phase of cutover? (Multiple Choice)

Transfer of data

Transition training

Acceptance meeting

Accounting for business expenses

49. Hardware or software testing is required before cutover to ensure the smooth progress of the cutover.

True

False

50. Project acceptance as long as party A and Party B are present, no third party involved.

True

False

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51. Which of the following is not an external risk of the project ？

Exchange rate changes

Heavy rain

Social unrest

Differences in industry standards

52. In order to improve the reliability of Internet export, enterprises often use multiple links to connect different operators. When using this method, you need to pay attention to the traffic path in the outbound and inbound directions at the same time, otherwise the network quality may be affected.

True

False

53. GRE is a general routing encapsulation protocol that can carry routing protocols and provide an encryption authentication mechanism.

True

False

54. When the network administrator tried to notify Telnet to access the internal network equipment, it was found that it could not be accessed. Which of the following is the most unlikely cause?

The route is unreachable, and the client and server cannot establish a TCP connection

The number of users logging in to the device has reached the upper limit

ACL is bound to the VTY user interface

Protocol inbound all is configured on the VTY user interface

55. An employee often travels to other places and needs to access the company's intranet. Which of the following methods is most suitable?

MPLS VPN

IPSec VPN

SSL VPN

ISDN over dialer

56. Regarding the cause of the dual-master failure of the VRRP backup group, which of the following is the most unlikely

The VRRP backup group configurations on both ends are inconsistent

The link that transmits the VRRP notification message is faulty

The low-priority VRRP backup group discards the received VRRP notification packets as illegal packets

Master device sends 1 notification message per second

57. In what occasions is the " looping " test generally used?

Test whether the application can connect normally

Test whether the routing protocol can effectively avoid loops

Test whether the switch can effectively carry out loop containment and broadcast containment

Test whether the physical circuit is interrupted

58. Which of the following aspects should be considered in the cutover risk assessment? (Multiple Choice)

Key locations of risk points

Scope of risk impact

Time of risk impact

Loss caused by risk

59. When the device receives a large number of unresolvable ARP packets when it is attacked by an ARP MISS attack, it will send a large number of ARP miss packets, but will not occupy the ARP table entries.

True

False

60. What are the main difficulties of cutover? (Multiple Choice)

Minimize the scope that affects the business

Do the best in risk avoidance

Develop a complete cutover plan

Smoothly execute cutover

Page 7 of 9

61. Which of the following is the source of demand for network optimization? (Multiple Choice)

After long-term network maintenance, some summarized problems and improvement points, put forward relevant suggestions, and carry out centralized rectification

Video conferencing services need to be carried out in the network, and switching equipment supporting Layer 2 multicast functions needs to be added

The environmental problem of a weak current well, the signal line is seriously aging, and needs to be replaced collectively

For corporate information security needs, add new security equipment

62. What are the factors that cause traffic interruption after network failure? (Multiple choice)

Fault detection time

Routing loop

Failure propagation time

Single device failure response time (table item update)

63. Regarding the work content of network maintenance, which of the following statements is correct? (Multiple choice)

For the maintenance of equipment software, although the staff can operate on site, it is only recommended to operate remotely

The operation of the equipment software is closely related to the specific business of the equipment operation

The external environment in which the hardware runs does not require deliberate attention

For the maintenance of the equipment environment, the staff needs to come to the scene newly, even with the help of some professional tools to observe and measure

64. For the purpose of optimizing access security, which of the following is the most appropriate ？

Ensure that sensitive management information is not stolen illegally

Prevent and reduce external network attacks and harm

Ensure the access security of key business

Realize user's secure access control

65. If the counted goods are inconsistent with the quantity on the packing list, you can first unpack and inspect the goods before contacting the manufacturer for processing.

True

False

66. What matters should be paid attention to in the process of fiber deployment (Multiple choice)

When performing various operations such as optical fiber installation and maintenance, it is strictly forbidden to approach or look directly into the optical fiber outlet with the naked eye

The optical fiber can be routed together with the power cord

The optical fiber is sheathed in the corrugated tube, and the nozzles at both ends of the corrugated tube must be wrapped with tape

The radius of curvature of the optical fiber should be greater than 20 times the diameter of the optical fiber, under normal circumstances the radius of curvature is ≥40mm

67. What problems will ARP spoofing attacks cause? (Multiple choice)

Too many ARP packets cause the device cpu to be overloaded

Device ARP cache table resources are exhausted

The user cannot access the external network or repeatedly disconnects

The data sent by the user is stolen by the attacker

68. You use a Huawei router as an SSH client to log in to another Huawei router, but the login fails.

You suspect that it may be a configuration error on the SSH server. When checking the cause of the server configuration failure, which of the following is the most unlikely?

The SSH protocol is not bound to the VTY interface of the user interface

User service type, authentication type, user authentication service type are not configured

The server and client SSH versions are inconsistent

SSH first authentication function is not enabled

69. The essence of SDN is to build a centralized brain for the network, and achieve the optimal global traffic through a global view and centralized control.

True

False

70. Which of the following is not a major role in the development of the project delivery process?

Increase customer satisfaction

Clear division of responsibilities

Improve work efficiency

Reduce project risks

Page 8 of 9

71. Which of the following descriptions of the external risks of the project is wrong?

Industry standard differences

Social unrest

Exchange rate changes

Heavy rain

72. What are the main maintenance training after the project is delivered? (Multiple choice)

Networking and configuration training

Routine maintenance training

Emergency troubleshooting training

Management and safety production training

73. The OPTIONG field is set in the DHCP protocol. What is the function of the OPTION82 field?

Record DHCP server information

Record the address information of the dhcp client and dhcp relay device

Differentiate the types and configurations of different clients

Set the IP address lease time option

74. What are the main contents of the cutover project plan? (Multiple choice)

Cutover preparation

Cutover implementation

Rollback plan

Emergency plan

75. In order to save the cost of equipment, the position of the network monitoring optimization can be a network outlet, server interface, the key link.

True

False

76. After the project is delivered, operation and maintenance costs will continue to be incurred. Which of the following items are costs incurred during operation and maintenance? (Multiple choice)

Energy costs

Route suggestion fee

Line rental fee

Equipment depreciation expenses

Staff costs

77. In order to be able to quickly detect network problems, which of the following protocols can we deploy?

BFD

RSTP

ISPF

SMART-LINK

78. R1. R2, R3, and R4 all belong to OSPF area 0, and the cost of the link is shown in the figure.

Loopback0 of R1, R2, R3, and R4 are advertised into OSPF.

R1, R2, R3, and R4 use Loopbacko as the connection interface to establish an IBGP peer relationship. R1, R2, and R3 are clients of R4.

R4's directly connected network segment 172.20.1.4/32 is advertised into BGP. Regarding the flow of R1 accessing 172.20.1.4/32, which one is correct? (Multiple choice)

The preferred route path is R1-R3-R4

The preferred route path is R1-R2-R4

There will be packet loss during the two processes when R3 is powered off and started.

If R3 is configured with Stub router on-startup, then R3 will lose packets during power-off, and there will be no packet loss during R3 startup.

79. Customer's project team as the final user of the network, to make a final evaluation of the network project.

True

False

80. Which of the following parameters do we generally use to measure the performance of the switch? (Multiple choice)

Port density

CPU frequency

Exchange capacity

Packet forwarding rate

MAC table capacity

Port rate

Page 9 of 9

81. Which of the following BGP routing attributes cannot control BGP route selection?

Originator ID

AS_Path

Communi ty

MED

82. As shown in the figure, which of the following descriptions are correct? (Multiple choice)

R1 has a route to 172.17.1.5

R1 access 172.17.1.5 has a loop

R1 does not access the route of 172.17.1.5

R1 accesses the path of 172.17.1.5 without any problems

83. In the testing phase cutover, which shows completed testing standards?

Check that the network is running normally as a standard

Test network business is normal as standard

The upper layer application service test carried by the network is normal as the standard

Command view results are normal as standard

84. During the process of viewing the debug output through the SSH terminal, a lot of information pops up. Which of the following operations can make the Monitor terminal no longer pop up the debug message? (Multiple choice)

Open the notepad, enter undo terminal monitor, copy the command line, and paste it into the monitor interface

Open the notepad, enter undo debugging all, copy the command line, and paste it into the Monitor interface

Open the notepad, enter undo terminal debugging, copy the command line, and paste it into the Monitor interface

Exit the current Monitor interface, log in to the device again using SSH to open a new Monitor interface

Real H12-223_V2.5 HCIP Routing & Switching Exam Dumps

Real H12-223_V2.5 HCIP Routing & Switching Exam Dumps

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