Free Huawei H12-931-ENU Practice Test & Real Exam Questions

Exam Code/Number: H12-931-ENU
Exam Name/Title: Huawei Certified Internetwork Expert-Transmission
Certification Provider: Huawei
Corresponding Certification: HCIE-Transmission

Exam Questions: 320
Updated On: Oct 03, 2026

Question #15

Preparation conditions for single-site commissioning of transmission equipment include (multiple choices)

A. Make sure that the network management program installed on the laptop is normal

B. Does the power supply have

C. Whether the hardware installation is qualified

D. Whether the related optical fiber and cable are installed in place

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question #16

If there is a problem with the CORBA connection, it can be analyzed as follows: If it is not a problem on the U2000 side, you should find it from the upper-layer network management itself or the U2000 and the upper-layer network management together; the name and notification service cannot be started normally, you should check whether the corresponding port is occupied, or Try to use other ports; if U2000 fails to start, check whether the CORBA configuration files bundle.cfq and ems.cfq are correct

A. TRUE

B. FALSE

Discussion 0

Correct Answer: A Vote an answer

Question #17

SOM is an intelligent optical layer management solution, which is only used for single-wave optical power and OSNR detection of coherent 40G and 100G systems

A. TRUE

B. FALSE

Discussion 0

Correct Answer: B Vote an answer

Question #18

If the location of the site is appropriate, ROADM sites and OTM sites composed of M40V/D40 back-to-back can all play the role of OEQ sites for pass-through wavelengths

A. TRUE

B. FALSE

Discussion 0

Correct Answer: A Vote an answer

Question #19

Which of the following are performance related to SM segment errors

A. OTUk_SM_FEES

B. OTUk_BBE

C. OTUk_SM_FEBBE

D. OTUk_PM_BBE

Discussion 0

Correct Answer: B Vote an answer

Question #20

OTN needs to change the original single-wave pass-through from D40 to M40 to use NQ2 as a relay. The error described below is

A. When the NQ2 adopts the relay board mode, the ASON is not turned on. For the end-to-end path, the electrical relay mode is required

B. It can be relayed in cross mode, and cross board needs to be configured at this time

C. For optical layer ASON and electrical layer ASON applications, setting "optical relay mode" and "electrical relay mode" has no effect on the system

D. When you do not need to relay in cross mode, at this time, the NQ2 fiber connection (take 1 optical port as an example) is the westward direction of IN1 port and the eastward direction of OUT1 port.

Discussion 0

Correct Answer: A Vote an answer

Question #21

Four network elements A, B, C, and D form an SNCP ring, and there are a large number of PDH services between A and B.
One day, the fiber between A and B was interrupted.
In order to eliminate the R-LOS alarm on the network management system, an engineer self-looped the optical ports at both ends of the interrupted fiber. After 10 minutes by default, what will happen?

A. The services of A and B will not be affected, and the switching alarm will not disappear

B. The business between A and B is not affected, and the switching alarm disappears

C. The service between A and B is interrupted, and the switching alarm disappears

D. The service between A and B is interrupted, and the switching alarm does not disappear

Discussion 0

Correct Answer: C Vote an answer

Question #22

Which of the following IP addresses is a class C IP address

A. 10.110.192.111

B. 127.0.0.1

C. C2.A8.D2.e1

D. 10011010.01101110.10000000.01101111

Discussion 0

Correct Answer: C Vote an answer

Question #23

The following statement about PTN's VPLS technology is wrong,

A. Need to manually configure the split horizon group to avoid the loop of Full-mesh VPLS

B. VPLS (Virtual Private LAN Services), is a kind of service similar to LAN provided on MPLS (Multiprotocol Label Switching) network

C. PE only needs to determine the forwarding of the Ethernet frame based on the VLAN ID in the user message without other parameters (such as the destination MAC address in the message, etc.), whether it is forwarded directly to the CE or to the PW through the PW Peer PE

D. VSI is a virtual layer 2 forwarding entity, which defines the number of members of the VPLS domain on the PE, similar to a virtual switch

Discussion 0

Correct Answer: C Vote an answer

Question #24

Which of the following statements about the ALC function and configuration principles of the OTN system is correct? () (multiple choice)

A. If there are two cascaded OA boards in the node, the first node only configures the second OA board as the reference unit, and do not deploy the power detection unit

B. The ALC function can automatically adjust the output optical power of the amplifier in which the line attenuation changes. Except for the first site, other sites must be equipped with power detection units

C. The detection and reference unit of the first node cannot use the same optical port of the same board

D. It is recommended that the number of network elements in the ALC link is less than 20, otherwise the ALC adjustment may time out and cause failure

E. Each ALC link has a unique ID, and ALC nodes can belong to different DCN subnets

F. The "working mode" of the OA board and RAU1/RAU2 board must be configured as "gain lock", if it is configured in other modes and ALC is configured, the ALC will not be adjusted

Discussion 0

Correct Answer: A,B,C,E,F Vote an answer

Question #25

User A and user B belong to the Team group. User A has a file File1.
After running the command "$ chmod 750 File1", the following statement is wrong.

A. Users in the Team group have read and execute permissions on File1

B. User A has read/write/execute permissions to File1

C. Users who are not in the Team group, only have read access to File1

D. User B cannot modify File1 and does not have this permission

Discussion 0

Correct Answer: C Vote an answer

Question #26

Designed as a C-band 80-wave system, add the operation of the C-band odd-numbered wave, the description is correct (multiple choice)

A. There is no change in the optical power of the OTU WDM side

B. The original business signal-to-noise ratio remains unchanged after operation

C. Need to re-adjust the light emission power

D. The operation process will interrupt the original business

Discussion 0

Correct Answer: A,B Vote an answer

Question #27

When configuring the dual-stage amplifier board of RAU+OAU, which position of the DCM module is recommended in the following figure is the best

A. 2

B. 4

C. 1

D. 3

Discussion 0

Correct Answer: D Vote an answer

Question #28

Which of the following descriptions of ODUk SNCP protection types are wrong?

A. For the boards that need to be configured with ODUk SNCP protection and electrical crossover, the configuration is different according to the selected board and client side services;

B. The protection subtype is "SNC/S": To monitor the PM layer, OTN overhead needs to be set;

C. When the protection subtype is "SNC/I", there is no need to set OTN overhead, but when configuring this type of protection, both ends of the business must be within the scope of SM overhead monitoring;

D. The ODUk SNCP protection configuration of the receiving site needs to be consistent with the ODUk SNCP protection configuration of the sending site;

Discussion 0

Correct Answer: B Vote an answer

Download Free Huawei H12-931-ENU Demo

Simply submit your e-mail address below to get started with our free demo of your Huawei H12-931-ENU exam.