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A SIP response message such as TRYING which starts with a 1 is:

A.

a provisional message

B.

a confirmation message

C.

an acknowledgement

D.

a failure message

Which device is used to change electrical energy into sound energy so that the near-end audience can hear the far-end audience?

A.

Sound Pressure Meter

B.

Repeater

C.

Microphone

D.

Speaker

H.225 provides which three functions?

A.

call setup via Q.931

B.

RAS

C.

in-call control

D.

framing

Do you need to add a new Virtualization Manager (DMA) activation key following an upgrade?

A.

Probably not

B.

Yes

C.

No

D.

Possibly, depending on the type of upgrade

Which Virtualization Manager (DMA) function ensures resources are available in the event of a failure somewhere in the network?

A.

Scalability

B.

Virtualization

C.

Resiliency

D.

Redundancy

To end a SIP call, one end point sends a BYE message to the other. Then what happens?

A.

a RELEASE, then an ACK tears down the call

B.

a RELEASE tears down the call

C.

an OK, then an ACK tears down the call

D.

an OK tears down the call

When VSW mode is enabled in an RMX conference profile, how many resources does each participant use at 1080P resolution?

A.

1

B.

0.5

C.

3

D.

6

H.264 provides which resolutions?

A.

QCIF

B.

CIF

C.

4CIF

D.

HD

RAS uses which protocol?

A.

H.225

B.

H.245

C.

Q.931

D.

G.711

Which port is used to connect to the RMX management interface by default?

A.

8080

B.

80

C.

443

D.

1719