Which of the following correctly describes reverberation and echo?
A. Reverberation is long, distinct, acoustic reflections.
B. Reverberation is irrelevant to conferencing audio.
C. Echo is a coherent, distinct carry-on of sound.
D. Echo is short, diffuse, acoustic reflections that linger after the original sound has stopped.
E. Reverberation is an incoherent, diffuse, carry-on of sound
Gatekeeper messages for registration and admission that are successful will always have the Generic
structure as:
(Note - "XX" - is a variable value that represents specific Gatekeeper names)
A. RequestXX, DenyXXC
B. RequestXX, ReplyXX
C. XXRequest, XXConfirm
D. XXRequest, XXAcnowledged
E. XXRequest, XXReply
Institute for Electrical and Electronics Engineers group 802 manages
A. Network repeaters and Network line drivers hardware designs.
B. Medium Access Control Addressing
C. C and D
D. Network line padding specifications.
E. B and D
F. Local Area Network specifications
G. A and C
E1 framing has a bit structure of how many bits per frame? Clue Full metallic E1 speed divided by 8KHz Stratum timing.
A. 200
B. 300
C. 240
D. 256
Which of the following best describes the Video over IP call setup process between two H.323 Terminals?
A. Calls are using FTP
B. Calls are using DTMF signaling
C. Calls are using the Q.931 signals
D. Calls are using the Q.921 signals
E. Calls are using RAS Protocol
F. Calls are using TELNET
Which of the following might cause a video frame rate problem?
A. Insufficient light source used in the room
B. Walls that are painted red
C. Carpeting is red color
D. Insufficient bandwidth between VTC systems
Asynchronous Transfer Mode Network is capable of providing which bandwidth?
A. Constant Bit Rate
B. Available Bit Rate
C. All of the other alternatives apply.
D. Unspecified Bit Rate
E. Non-Real-Time Variable Bit Rate
F. Real-Time Variable Bit Rate
When required, improperly matched impedance will cause problems with .
A. Audio signal levels
B. All of the other alternatives apply.
C. feedback frequency filtering
D. room acoustics
Select three functions of a Gatekeeper.
A. Provides Conference Audio and Video
B. Provides Address Translation
C. Limits the number of Video / Audio sites conferencing on the network
D. Provides all the Content
E. Provides Bandwidth Management
F. Limits the distance between Video Coders
G. Provides Multipoint Conferencing
H. Allows International Video Calls
Which of the following best describes Inverse Multiplexing?
A. Dynamically Dividing the Audio and the Video into separate streams
B. Dynamically Splitting a High Speed Data source into two or more lower speed circuits
C. Permanently Dividing the Audio and the Video into separate streams
D. Permanently Splitting a High speed data source into two or more lower speed circuits
