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VGA output is supported up to ( ) resolution.

A.

1366*768

B.

1280*1024

C.

1920*1080

D.

1360*768

The main role of the 317.H.245 protocol is ( ).

A.

Real-time transmission

B.

Competency Consultation

C.

Video encoding

D.

Media Control

In the Early state, dialog can be terminated by ( ).

A.

The caller sends a BYE

B.

The caller sends CANCLE

C.

Called Failure Response

D.

Called to send BYE

The private network terminal calls the public network terminal, and when the logical channel is opened, the reason for the occurrence of a single pass of media streaming is ( ).

A.

The firewall does not open the corresponding port

B.

The public network terminal cannot find the private network address

C.

The terminal cannot perform master-slave determination

D.

The terminal cannot negotiate the capability

Sendto[(218.5.64.98:18616)][59285094444][0x00000065:err_reg_wrong_account_or_password]] From the above logs, you can tell that the reason for the registration failure is ().

A.

Account password error

B.

CIDR Block Registration Restriction

C.

Cinder segment bandwidth limit

D.

Communication line exception

HD terminals support peer-to-peer () calling. (3 answers).

A.

Number

B.

Venue name

C.

MAC address

D.

IP Address

The following description of the H.323 call flow is correct

A.

RAS, RTP/RTCP are hosted in UDP protocol layer

B.

Q.931 Common port: 1719

C.

AS Common Port : 1720

D.

Q.931, H.245 hosted in the TCP protocol layer

According to H. 323t, the signaling required to complete the process of exchanging capabilities is. ( )

A.

DRQ , DCP

B.

MSDR , KSDA

C.

TCSR , TCSA

D.

GRQ, GCF

Incorrect description about recording server (CR101/CR102 ) is ( ).

A.

Support meetings in progress, users through a PC browser and other views of the meeting, similar to live broadcast

B.

After the end of the support meeting, the user can watch the meeting recording saved on the recording server through the PC browser

C.

The recording server supports the codec function

D.

The recording server is able to record and play on-demand MCU media streams

Nlog v2.0 can export file formats including ( ).

A.

DoC

B.

csv

C.

EXE

D.

Txt

During a point-to-point number call, the terminal ends up getting a ( ) of the peer terminal from GK to make the call.

A.

Number

B.

IP address

C.

MAC

D.

VLAN ID

Which of the following belongs to the extension request (). (3 answers).

A.

MESSAGE

B.

PUBLISH

C.

OPTIONS

D.

NOTIFY

The advantages of static NAT include. ( )

A.

The terminals in the four private networks are no different from the public network terminals, and the public network terminals can directly call the public network address after the NAT of the private network terminals.

B.

The endpoint after port NAT is protected by a firewall.

C.

Most endpoints support NAT functionality.

D.

Back is very practical when there are a small number of private network terminals that need to access the public network.

RAS performs administrative functions, the main content of which includes ( ).

A.

enroll

B.

Access Control

C.

safe

D.

State

At the UDP layer, H.323 protocols fall into three broad categories, where the functions of the terminal control class are not included. ( )

A.

Transfer of data

B.

Meeting Control Signaling

C.

Call signaling for the endpoint

D.

Negotiated signaling answer to logic channels and AV capabilities