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最新的 HCIE-Transmission H12-931-ENU 免費考試真題:

1. The networking of a certain wavelength division network is shown in the figure.

Now due to the needs of new business, there are 2 waves that need to be up and down at site B, that is, the OLA site needs to be transformed into a back-to-back OTM site. The error described below is

A) Need to recalculate the design signal-to-noise ratio of each segment AB, BE, AE, and evaluate whether the designed signal-to-noise ratio can meet the needs of business reception
B) Perform optical power budget for the new service hop, and redesign the power of the reconstructed site according to the requirements of the back-to-back OTM site. If possible, add an optical amplifier board.
C) The site type is transformed from OLA to back-to-back OTM. It is necessary to add boards such as M40/D40/OA/OUT. It is necessary to evaluate whether the existing network subrack slots are sufficient. Subrack
D) Since the original network dispersion is normal compensation, it is not necessary to adjust the dispersion after network transformation

2. When the MR1 board is used as an OSN1800 single fiber bidirectional in the following scenarios, you can use the MR2 or MR4 board instead

A) TRUE
B) FALSE

3. Regarding the differences between Linux and Solaris operating systems, the following statement is wrong ()

A) All disks need to be recognized by the operating system, but Solaris needs to be set in the sd.conf file, and linux does not
B) Linux comes with fssnap command to create and manage file system snapshots. Solaris does not have such a file system snapshot tool
C) Manage hot-swappable devices through cfgadm in Solaris. When the device is connected in Linux, the system automatically recognizes and configures hot-swappable devices
D) Solaris itself only supports UFS hard disk file system; in Linux, there are many disk file systems to choose from, the default is ext3

4. The following statements about the main and backup channels of optical line protection are wrong:

A) "Main and standby channel difference threshold (dB)" One is used to set the signal failure (SF) when the difference in optical power between the main and standby optical ports of a single board reaches a certain value.
B) "Initial difference between the main and backup channels (dB)"-used to set the reference value of the optical power difference between the main and backup channels of the board.
C) If the current optical power difference between the main and backup channels exceeds the "main and backup channel difference threshold (dB)", the system will undergo protection switching.
D) When the difference between the main and standby optical power exceeds the threshold, the optical switch will switch the service to the standby channel, and the set value supports query. The recommended setting is 5db.

5. What are the precautions for configuring MPLS Tunnel on Hybrid MSTP? (multiple choice)

A) In the same network, the LSR IDs of all network elements cannot be the same
B) The IP address of the Ethernet port of the same network element cannot be in the same network segment
C) The IPs of the ports at both ends of the same link must be in the same network segment
D) In the same network, the MPLS labels of all network elements cannot be the same

問題與答案：