Huawei H31-341_V2.5-ENU Practice Exams
Last updated on Mar 31,2025- Exam Code: H31-341_V2.5-ENU
- Exam Name: HCIP-Transmission V2.5
- Certification Provider: Huawei
- Latest update: Mar 31,2025
During the U2000 dual-system installation and commissioning, the operations that can be performed by the ossuser user are?
- A . When you forget the password or the password expires and you cannot log in to dbuser, you can log in to the operating system as the ossuser user, and use "#passwd dbuser" in the terminal to change the password
- B . When the U2000License file is modified to the DOS format, you can log in as the ossuser user. B executes the dos2unix command to convert the U2000License file format from the DOS format to the UNX format.
- C . Modify the password of the admin user who logs in to the vcs client
- D . On the Solaris or SUSE Unix platform, if you cannot log in to the graphical desktop, you can log in as the ossuser user and use the command line to restore the binary mode database
What operation does the PROG indicator of the NG WDM device board blink rapidly (green) indicate?
- A . Single board hardware failure
- B . Business is not working properly
- C . There is an important alarm on the board
- D . Write FLASH operation or software loading in progress
In the network management planning process, which item is not absolutely necessary?
- A . Network scale planning, network management deployment planning
- B . DON network planning, OSS docking planning
- C . Network parameter planning and reliability planning of the network management server
- D . Network management software and hardware configuration
The gain of the OAU single board is 23db, and 1% of the total output power of the OAU single board is used for MON detection. Now the output optical power of the MON port is tested to be – 8dbm, and the input optical power of the IN port of the OAU single board is?
- A . -11dbm
- B . -13dbm
- C . -15dbm
- D . -21dbm
SOTU stands for Single Optical Transport Unit Interface, and MOTU stands for Multiple Optical Transport Unit Interface.
- A . True
- B . False
The path at the GE level is essentially a path at the Client level.
- A . True
- B . False
Which of the following descriptions about optical line protection is wrong?
- A . Optical line protection is double-ended switching. In the case of a single optical fiber interruption, there will be no inconsistency in sending and receiving routes.
- B . Use the OLP board to configure optical line protection. The RI1/T01 optical port of the 0LP board must be working, and the RI2/T02 optical port must be protection.
- C . OLP board switching is only related to the received optical power
- D . When protecting optical lines, use the dual-feed and selective-receiving function of the OLP single board to protect the line fibers between adjacent sites using separate routes
Which of the following statements about the main and backup channels of optical line protection is wrong?
- A . "Initial Difference Between Active and Standby Channels (dB)"―the reference value used to set the optical power difference between the active and standby channels of the board.
- B . "Master-standby channel difference threshold (dB)" – used to set the difference between the main and standby optical ports of the board when the optical power difference reaches a certain value, it will be regarded as a signal failure (SF).
- C . When the difference in the optical power of the full backup exceeds the threshold, the optical switch will switch the service to the backup channel, and the set value supports query. Recommended setting is 5dB
- D . If the current optical power difference between the active and standby channels exceeds the "main and standby channel difference threshold (dB)", the system will initiate protection switching.
Reasons which is impossible for OTN equipment and network elements to be disconnected frequently?
- A . When using optical monitoring, the DCC mode setting is wrong
- B . Using electrical monitoring, the line quality is not good
- C . NE ID conflict
- D . Users of the same network element log in to the network element at the same time
Which of the following description of the 100G mixed transmission system is wrong?
- A . Coherent and non-coherent signals (10G and 40G ODB will affect each other, resulting in a sharp drop in performance, and isolation bands are necessary)
- B . 40G DQPSK and coherent signals will not affect each other without isolation band
- C . 10G starts from a short wavelength, and the isolation band can be filled with 40G DQPSK wavelength
- D . The cost of mixed transmission is related to the number of transmission spans and the width of the isolation bandwidth, and has nothing to do with the FEC encoding method