H31-311-ENU by Huawei Actual Free Exam Q&As

Question 1

Frame-Mapped GFP (GFP-F) is a processing mode oriented to data coding blocks (such as Fiber Channel and ESCON).

A. TRUE B. FALSE

Discussion 0

Correct Answer: B Vote an answer

Question 2

Which of the following statements about the EFS4 board are correct? (Multiple Choice)

A. This board must be used together with a processing board. B. This board has four FE ports. C. This board supports Layer-2 switching. D. The board interface an LC interface.

Discussion 0

Correct Answer: B,C Vote an answer

Question 3

The coherent receiver technology uses the local oscillator laser that has the same frequency as the received signals to perform coherent processing and recovers the ( ) information from the received signals. (Multiple Choice)

A. Frequency B. Amplitude C. Phase D. Polarization state

Discussion 0

Correct Answer: B,C,D Vote an answer

Question 4

Which of the following statements about overhead bytes is incorrect?

A. A1 and A2 are framing bytes. These bytes are used to separate STM-1 frames in a signal flow. B. E1 and E2 are orderwire bytes. These bytes are used to provide a voice channel for orderwire connections. C. B1 is bit interleaved parity-8 (BIP-8). This byte is used to monitor bit errors at the regenerator section layer. D. J0 is a regenerator section trace byte. This byte is used to repeatedly transmit a section access point identifier, so that the receive end can verify its continuous connection to the specified transmit end.

Discussion 0

Correct Answer: A Vote an answer

Question 5

SES: There are 5% or more than 5% bit error blocks or at least one defect (OCI/AIS/LCK/IAE/LTC/TIM/PLM) within one second.

A. TRUE B. FALSE

Discussion 0

Correct Answer: B Vote an answer

Question 6

When a working PQ1 board is faulty, the device performs TFS protection switching.
Which of the following statements about the switching process are correct? (Multiple Choice)

A. The cross-connect board detects that the PQ1 board is faulty through the board status bus. B. The protection PQ1 board receives and processes the services that are transferred from the D75S board to the protection bus to complete the protection switching. C. If the protection PQ1 board is normal, the cross-connect board sends a switching message to the D75S corresponding to the faulty PQ1 board through the switching control bus. D. The D75S board responds to the switching message by transferring services to the shared protection bus and stopping sending services to the faulty PQ1 board.

Discussion 0

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

Question 7

Which of the following is the frame structure of STM-16?

A. 9*270*1 B. 9*270*64 C. 9*270*16 D. 9*270*4

Discussion 0

Correct Answer: C Vote an answer

Question 8

The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.

A. TRUE B. FALSE

Discussion 0

Correct Answer: B Vote an answer

Question 9

The STM-64 has ( ) AU pointers.

A. 4 B. 16 C. 1 D. 64

Discussion 0

Correct Answer: D Vote an answer

Question 10

When a bridge uses the IVL learning mode, the entry in the MAC address table is created according to the source MAC address and source port of the data frame. This entry is valid for all VLANs.

A. TRUE B. FALSE

Discussion 0

Correct Answer: B Vote an answer

Question 11

After the U2000 delivers configuration data to an NE, if the verification fails on the SCC board, the NE enters the installation state.

A. TRUE B. FALSE

Discussion 0

Correct Answer: A Vote an answer

Question 12

The difference between a dispersion compensation fiber and a common fiber is that the dispersion compensation fiber has a negative dispersion coefficient at ().

A. 1550 nm B. 1310 nm C. 800 nm D. 1650 nm

Discussion 0

Correct Answer: A Vote an answer

Question 13

Which of the following statements about basic LCAS functions are correct? (Multiple Choice)

A. The bandwidth is dynamically increased or decreased. B. The failure members are protected and recovered. C. An error tolerance mechanism is provided to enhance the robustness of the virtual concatenation function. D. New NEs and links are automatically discovered.

Discussion 0

Correct Answer: A,B,C Vote an answer

Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) - H31-311-ENU Exam Practice Test