Free Access Huawei.H31-311_V2.5.v2026-06-11.q157 Practice Test (Page 2)

The bits of the S1 byte represent the clock quality level. Which of the following indicates the highest clock quality level?

A.S1=00100010

B.S1=00001111

C.S1=00010100

D.S1=00100100

Which of the following statements about the sequence of signal flow between SDH interfaces and cross-connect units are correct?

A.SPIMSPMSA

B.SPICMSTRST

C.SPTMSTMSARSTMSPHPT

D.SPIRST

The standard Ethernet frame length should not be less than 64 bytes Which of the following factors contribute to this limitation? (Multiple choice).

A.How conflict detection works

B.Maximum transmission distance

C.Minimum transmission distance

D.MAC address

Colored scene Each add or drop port can only add or drop fixed wavelengths.

A.True

B.False

Which of the following is the meaning of SFD in the Ethernet frame structure?

A.start frame delimiter

B.Payload

C.Preamble

D.Frame check sequence

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