Practice Free H12-931_V2.0-ENU Exam Online Questions
Which of the following options are correct regarding ROADM node configuration? (Multiple choice)
- A . WSM9+RDU9
- B . WSD9=RMU9
- C . WSMD9+WSMD9
- D . WSM9+WSD9
Which of the following options are correct regarding the 1+1 protection on the client side? (Multiple choice)
- A . When using the OLP board, the SCC board reports the protection switching alarm when a switch occurs.
- B . The only protection board supported is the OLP board
- C . The SD enable flag is disabled by default
- D . Switching conditions are: the board is not in place, SF (signal failure), SD (signal degradation)
There are two types of E1 signals: Unframed E1 and Framed E1. Unframed E1 means that all time slots are used as a whole to transmit user data.
- A . True
- B . False
G.707 multiplexing line diagram can only multiplex 2M34M140M signals into STM-N.
- A . True
- B . False
The service of station A is broadcast to stations B and C. When the branch board TOA (R8 version) of station A is connected to FE/GE, and GE uses TTT-GMP or GFP-encapsulation, in order to make the switch port of station A in the Up state: what methods that can be used on the OTN equipment? (Multiple choice)
- A . Configure the insert stream type of site A TOA to "empty stream"
- B . Configure a one-way crossover from the branch board to the line board at site B, and configure a one-way crossover from the line board to the branch board at site A.
- C . Configure a one-way crossover from the line board to the tributary board at site A.
The permanent 1+1 diamond-level ASON service path and networking at the electrical layer are shown in the figure below. When TE link resources are sufficient, the ASON service is successfully rerouted after the following two fiber break failures occur in the network.
Which of the following descriptions is correct?
- A . After the first fiber cut, ASON services can implement millisecond-level rapid protection switching without triggering rerouting.
- B . After two fiber cuts, the diamond-level ASON service will be downgraded to a silver-level service.
- C . In automatic return mode, when the fiber at fault point 1 is restored, the ASON service will immediately return to the original working path.
- D . When the third fiber cut occurs, the ASON service can be successfully rerouted if the E link resources are sufficient.
OCI stands for Open Connection Indicator. It indicates that the upstream management command in the connection function has opened the matrix connection. The signal loss state detected at the terminal point may be related to the open matrix.
- A . True
- B . False
Which of the following descriptions of the 1+1 protection features on the client side is wrong?
- A . OTU client optical layer dual transmission and selective reception
- B . Protect the OTU board and OCh fiber by occupying two wavelengths for protection and using different routes for transmission
- C . Working and protection wavelengths must be the same
- D . Long application time and wide protection range
When the input optical power of the amplifier of the receiving end OAU is lower than the nominal optical power, which of the following operations is wrong?
- A . Adjust the adjustable optical attenuation before the receiving amplifier to increase the input optical power of the amplifier
- B . Set the OAU gain so that its output reaches the nominal value
- C . Increase the optical power sent by the transmitter
- D . When the input optical power cannot be increased by adjusting the adjustable attenuator, the adjustable attenuation at the input end of the amplifier is suppressed.