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HCIE-Enterprise Communication (Written) Questions and Answers

Question 1

If IP phone A fails to register with U1900, which of the following situations will not be the cause of the registration failure? ()

Options:

A.

IP phone A has a network failure

B.

The SIP server information in the configuration of IP phone A is incorrectly configured.

C.

SIP account and password in IP phone A configuration are wrong

D.

The user ID and phone number of IP phone A configured in the U1900 system are inconsistent

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Question 2

The terminal number or name needs to be protected in the SMC2.0 system to avoid accidental modification. The most appropriate method is () (single choice)

Options:

A.

Configuration template

B.

Configuration lock

C.

Use unmanageable device

D.

Modify terminal password regularly

Question 3

Which of the following signaling is included in a SIP call? () (multiple choice)

Options:

A.

Invite

B.

200 OK

C.

ACK

D.

Set UP