1K0-002 Online Practice Questions and Answers

Which video coding is currently supported by H.320?

A. H.261and H.263only

B. H.263 only

C. H.261, H.263 and H.264

D. H.262 only

E. H.261 only

SIF resolution is

A. 144 lines.

B. 240 lines.

C. 96 lines.

D. 288 lines.

E. 480 lines.

Which H.263 Annex is used to implement 60 / 50 Fields per Second Intra Video -Sync Operation?

A. Annex W

B. Annex F

C. Annex Q

D. Annex P

E. Annex N

In an Ethernet shared Hub configuration used for videoconferencing, collisions may occur and be tolerated up to % Packet Ratio of Packets Collision over Total Packets Transported.

A. 50

B. 5

C. .5

D. 25

Which of the following describes one ISDN B-Channel?

A. Network that provides 64 kilobits per second

B. Network that provides 4800 kilobits per second

C. Network that provides various rates up to 1,920,000 bits per second

D. Network that is unable to function

E. Network that provides 1,536,000 bits per second

F. Network that provides 128 kilobits per second

Which of the following correctly describes echo as it relates to acoustic echo cancellations?

A. The result of sound bouncing off the walls in the room caused by the person speaking in that room being picked up by the microphones.

B. The sound one hears when the far-end is talking and one tries to talk at the same time.

C. The sound of the far-end being returned to themselves, caused by the room microphones picking up the audio from the room loudspeakers.

D. The sound of the room reverberation as picked up by the local microphones, amplified and returned to the far-end.

Which of the following is the cabling required for 2 pair (4 wire) 100BaseFast Ethernet?

A. CAT5e

B. CAT6

C. CAT3

D. CAT5

SONET Optical Carrier - 3 or OC-3 is what speed?

A. 155M data packets per second

B. 155M bits per second

C. 155M bytes per second

D. 155M blocks per second

Asymmetrical Digital Subscriber Line Services is best described as a network that provides

A. a Constant Clocked Rate of bits per second in both directions.

B. a Half Duplex Network operation.

C. unequal band width in both directions

D. equal bandwidth in both directions.

How is Multiplexing performed? (Select 3 of the following options.)

A. By session

B. By statistical

C. By performance

D. By network administrator time of day

E. By time division

F. By frequency division

Which of the following describes the activity for which a RTCP is used?

A. Network Statistics of Media Channels between Routers

B. Transport Task for Communication of Audio and Video over IP

C. Transport Task of Simple Network Management Protocol

D. Network Statistics of Media Channels between Videoconferencing Hardware

E. Network Statistics of Media Channels between Gatekeepers

Which of the following Standards defines multiple video channels during a Visual Telephony meeting?

A. H.323

B. H.221

C. H.225

D. H.320

E. H.239

When Ordering ISDN for Video Conferencing H.320, the most important request of information from the Network Provider is

A. length of the Copper Wire used for BRI or PRI medium at customer premise.

B. Switch Interoffice Facilities type

C. Switch Vendor Name.

D. Switch Protocol being used.

Which Network Alarm statuses are used to monitor network facilities trunk services?

A. GREEN and YELLOW Alarms

B. RED and GREEN Alarms

C. RED and YELLOW Alarms

D. RED and ORANGE Alarms

Network Operating Systems will typically introduce dynamic network functions and security by creating and controlling a hierarchy.

A. Client to Client Relationship

B. People to Software Police Relationship

C. Client to Server Relationship

D. Client to Software Police Relationship

E. Client to Network Switch Relationship

F. People to People Relationship