最新的HCNA-UC認證 H11-811-ENU考試題庫

問題1

When a user dials the VMS unified access prefix to retrieve messages, the user needs to enter authentication information, for example, the password.

A. TRUE

B. FALSE

正確答案: A

問題2

By default, the interval for refreshing the registered SIP server is set to () s on an IP phone.

A. 1200

B. 360

C. 600

D. 120

正確答案: C

問題3

Company A plans to deploy the automatic switchboard service, through which users can dial the desired extension numbers or dial O to connect to the secretary deployment as prompted. The short numbers for company A's employees contain four digits, and the long numbers contain eight digits. To prevent toil fraud of external users, the length of the number dialed following the automatic switchboard number needs to be limited to () digits.

A. 1

B. 4

C. 8

D. 2

正確答案: B

問題4

eSpace U1900 series unified gateways provide a built-in voice system.

A. TRUE

B. FALSE

正確答案: A

問題5

The CDRServer parses CDRs and saves them in the “.bill" format.

A. TRUE

B. FALSE

正確答案: A

問題6

The IAD is deployed at the () layer of the eSpace IPT system.

A. Control

B. Service

C. Access and Terminal

D. Management

正確答案: C

問題7

To centrally deploy and upgrade eSpace IP phones in DHCP Option 246 mode, make a upgrade policy file and specify the upgrade range and policy.

A. TRUE

B. FALSE

正確答案: A

問題8

Which of the following statements is CORRECT About the IVR function of U1900?

A. The U1900 supports only one IVR automatic switchboard service.

B. In the automatic switchboard service of the U1900, the greetings are fixed and cannot be changed.

C. The IVR function applies only to the automatic switchboard service.

D. The IVR function can be configured using the LMT.

正確答案: D

問題9

In U1900 series unified gateway, which of the following statements are CORRECT about the relationships among prefixes, office routes, office route selection codes, and trunks for eSpace U1900? (Multiple Choice)

A. A prefix can map only one office route selection code.

B. Office route selection codes and office routes have a one-to-many relationship.

C. An office route selection code can map only one prefix.

D. An office route can map the trunks of different types.

正確答案: A,D

問題10

An eSpace 7950 supports a maximum of 12 concurrent calls and 12 login accounts.

A. TRUE

B. FALSE

正確答案: B

問題11

Which of the following statements is CORRECT about the IP PBX when the CDR pool is full?

A. Outgoing calls can be made.

B. Intra-office calls can be made.

C. No more calls are available.

D. Calls from external can be answered.

正確答案: D

問題12

If the RFA indicator on a board of the U1900 is on, ().

A. The Rx of the peer device is faulty.

B. The Tx of the peer device is faulty.

C. The peer device works properly.

正確答案: A

問題13

The U1981 unified gateway provides a web management system to enable maintenance personnel to perform (). (Multiple Choice)

A. board status and resource management

B. signaling tracking

C. device upgrade

D. board, user and trunk configuration

正確答案: A,D

問題14

Numbers have been allocated to SIP users on the U1900 series unified gateway. Numbers can be allocated to analog phones directly connected to the IAD only after () are configured on the IAD. (Multiple Choice)

A. FXO users

B. SIP server IP address

C. SIP Trunk parameters

D. FXS users

正確答案: B,D

問題15

IP phones can obtain IP addresses through the DHCP server to access the IP network.

A. TRUE

B. FALSE

正確答案: A

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