最新的Huawei H31-311-ENU免費考試真題

問題1

Which of the following statements about extended ECC is incorrect?

A. Automatic extended ECC indicates using a straight-through cable to connect the Ethernet ports of two NEs.

B. Extended ECC is classified into automatic extended ECC and extended ECC in specified mode.

C. Extended ECC in specified mode indicates that the server and client need to be specified.

D. Automatic extended ECC can be enabled on a maximum of four NEs. In manual extended ECC mode, each server can be connected to a maximum of three clients.

正確答案: D

問題2

Which of the following working windows is indicated by "2" in the optical module parameter "L-64.2"?

A. 880 nm

B. 1550 nm

C. 1310 nm

D. 1510 nm

正確答案: B

問題3

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

A. This board supports Layer-2 switching.

B. This board must be used together with a processing board.

C. This board has four FE ports.

D. The board interface an LC interface.

正確答案: A,C

問題4

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

A. FALSE

B. TRUE

正確答案: A

問題5

The SNCP switching speed can be improved if you classify the SNCP services that have the same source, sink, or route into groups.

A. FALSE

B. TRUE

正確答案: B

問題6

When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported? (Multiple Choice)

A. R-LOS

B. BD STATUS

C. TU-AIS

D. APSJNDI

正確答案: A,D

問題7

When an optical fiber between node A and node B is broken, the RU on node B detects the OTS_LOS alarm and inserts the OTS_BDI alarm to node A.
The RU on node A reports the OTS_BDI alarm. The line board on the downstream C node reports the OCh_SSF alarm.

A. FALSE

B. TRUE

正確答案: B

問題8

The interval between two adjacent pointer justification events is at least () frames.

A. 3

B. 4

C. 2

D. 5

正確答案: A

問題9

Which of the following are the differences between AU pointer and TU pointer? (Multiple Choice)

A. Number of bits occupied by the pointer value

B. Indication range

C. Adjustment unit

D. Byte where the pointer value is stored

正確答案: B,C,D

問題10

When the transmit end detects that the b6-b8 of the K2 byte is 110, it indicates that the () alarm is reported at the transmit end.

A. R-LOS

B. R-LOF

C. MS-RDI

D. MS-AIS

正確答案: C

問題11

The pointer is used for alignment and indicates the start position of VC-n in the corresponding AU or TU frame. In this way, the receive end can correctly remove the corresponding VC from the STM-N, and then split the VC and C encapsulation to separate low-rate signals, such as PDH. That is, low-rate tributary signals can be directly dropped from the STM-N signal.

A. FALSE

B. TRUE

正確答案: B

問題12

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

A. 9*270*16

B. 9*270*1

C. 9*270*4

D. 9*270*64

正確答案: A

問題13

Which of the following is not the northbound interface provided by the U2000?

A. Qx

B. CORBA

C. XML

D. SNMP

正確答案: A

問題14

Which of the following can be the center wavelengths of the pump sources in an EDFA? (Multiple Choice)

A. 1310 nm

B. 1510 nm

C. 1480 nm

D. 980 nm

正確答案: C,D

問題15

Optical fiber loss includes the bending loss, absorption loss, and scattering loss.

A. FALSE

B. TRUE

正確答案: A

最新的Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) - H31-311-ENU免費考試真題

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