Select three of the following networks types that are "Full Duplex".
A. Ethernet Switch interfaces
B. Ethernet BUS cable interfaces
C. ISDN B-Channels
D. One Coaxial Cable
E. S/T Reference point
F. Ethernet HUB interfaces
How many "Groups of Blocks" are used to create the Full CIF resolution?
A. 3
B. 12
C. 48
D. 10
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
Which ISDN service is capable of delivering 56K or 64K Constant Bit Rate circuits?
A. Circuit Switched Data
B. Low Speed Packet Switching
C. High Speed Packet Switching
D. Circuit Switched Video
E. Circuit Switched Voice
Which of the following correctly describes the purpose of an Acoustic Echo Canceller (AEC)?
A. An AEC reduces the room loudspeaker contribution to the local microphone sent to the far-end.
B. An AEC provides a means to reduce room noise sent to the far-end.
C. An AEC provides compensation for room acoustics to improve microphone sensitivity and gain.
D. An AEC provides a means to reduce room reverberation as heard by the far-end.
E. An AEC provides compensation for room acoustics to better allow the reduction of echo returned to the far-end.
Network Address Translation works in which OSI Layer?
A. Layer 4
B. Layer 3
C. Layer 5
D. None of the other alternatives apply.
SIF resolution is
A. 144 lines.
B. 240 lines.
C. 96 lines.
D. 288 lines.
E. 480 lines.
MPEG4 Part 10 (H.264) coder requires what network data rate to sustain full motion video at SIF resolution?
A. More than 10,000 kilobits per second
B. More than 3,000 kilobits per second
C. Less than 1 kilobit per second
D. Less than 384 kilobits per second
The G.723.1 uses which bit rates?
A. 8 and 16 kilobytes per second
B. 5.3 and 6.3 kilobytes per second
C. 5.3 and 6.3 kilobits per second
D. 12 and 24 kilobits per second
E. 8 and 16 kilobits per second
Browsing sites and Managing Multipoint Conferences from the Video End Point is part of which standard?
A. H.233
B. H.243
C. H.234
D. H.242
E. H.281
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