H31-311_V2.5試験無料問題集（750題）「Huawei HCIA-Transmission V2.5 認定」

出題：1

Sending test frames will affect normal business.

A. True

B. False

正解：B 解答を投票する

出題：2

Which of the following is a functional unit that provides high-speed signal interface and processes corresponding signals?

A. Cross-connect unit

B. Auxiliary units

C. Line Unit

D. Tributary Unit

正解：C 解答を投票する

出題：3

Which of the following network element forms can complete the cross-multiplexing and service addition and subtraction between branches and lines, and between lines?

A. ADM

B. REG

C. DXC

D. TM

正解：A 解答を投票する

出題：4

In the case of 1+1 linear MSP, which of the following switching modes does not require the APS protection protocol to be enabled? (Multiple choice)

A. Dual-end reply mode

B. Dual-ended non-reply mode

C. Single-ended reply mode

D. Single-ended non-reply mode

正解：C,D 解答を投票する

出題：5

Which of the following steps are generally required to multiplex low-speed services into high-speed SDH services? (Multiple choice)

A. Mapping

B. Positioning

C. Overhead Insertion

D. Reuse

正解：A,B,D 解答を投票する

出題：6

If the virtual cascade group at one end of the device has LCAS enabled, but the other end has not enabled LCAS, the connection fails.

A. True

B. False

正解：B 解答を投票する

出題：7

The wavelength division system mainly uses DCM compensation to compensate for chromatic dispersion. Which of the following descriptions about DCM dispersion compensation is wrong?

A. For 10G systems with line fiber lengths of less than 400 km, G.652 DCM can be used to compensate

B. 655 (LEAF).

C. Improper DCM configuration will lead to degradation of receiving end performance.

D. Improper DCM configuration will cause the system signal-to-noise ratio to deteriorate.

E. DCM modules are more likely to cause nonlinearity than line transmission fibers, so the optical power entering the fiber must be strictly controlled.

正解：D 解答を投票する

出題：8

The optical amplifier unit compensates for line losses and extends the transmission distance.
Connecting multiple optical amplifier units in cascade mode can extend the transmission distance of the system indefinitely.

A. True

B. False

正解：B 解答を投票する

出題：9

The process of multiplexing 2M signals into STM-N signals can be simply summarized as 3-7-3 multiplexing. There are two multiplexing modes: () mode and () mode

正解：

Sequence | Interleaving

出題：10

Which of the following options are considered to be deficiencies of OTN? (Multiple choice)

A. Insufficient resource utilization

B. Bandwidth adjustment is not flexible

C. Latency is not low enough

D. Insufficient flexibility, the minimum pipe is ODUO 1.25G

E. OAM function is not strong

正解：A,B,C,D 解答を投票する

出題：11

Which of the following bytes can be used for wired calls between two REG devices?

A. E1

B. E2

C. None of the above

D. E1 and E2

正解：A 解答を投票する

出題：12

Which of the following ITLI-T recommendations define the OTN frame structure?

A. G.709

B. G.694

C. G.975

D. G.652

正解：A 解答を投票する

H31-311_V2.5試験無料問題集「Huawei HCIA-Transmission V2.5 認定」