Deck 2: Understanding the Fundamentals of Voice and Video Communication Technologies

Question 1

In Voice Over IP, Term SIP stands for

A)session initiation protocol.
B)session initiation port.
C)session initiation path.
D)session initiation packet.

Answer 1

session initiation protocol.

Question 2

In Real-Time Transport Protocol (RTP), A source sends a bye message to shut down a

A)system.
B)frames.
C)ip.
D)stream.

Answer 2

stream.

Question 3

In Audio and Video Compression, term RBG expresses

A)red, blue, green.
B)red, black, grey.
C)rate, bit, giga bit.
D)red, bluish, greyish.

Answer 3

red, blue, green.

Question 4

To perform tracking of an IP, Session Initiation Protocol (SIP), uses concept of

A)registration.
B)termination.
C)streaming.
D)translation.

Question 5

A simple session using Session Initiation Protocol (SIP), consists of three modules: establishing, communicating, and

A)transmission.
B)system.
C)streaming.
D)terminating.

Question 6

Real-time traffic needs support of

A)multicasting.
B)translation.
C)integration.
D)security.

Question 7

Session Initiation Protocol (SIP), is designed to be independent of underlying

A)linear layer.
B)lower layer.
C)transport layer.
D)protocol layer.

Question 8

In Real Time Interactive Audio Video, data are stored in buffer at a possibly variable

A)pixels.
B)packets.
C)rates.
D)bytes.

Question 9

In Real Time Interactive Audio Video, to prevent jitter, we can time-stamp packets and separate arrival time from the

A)frame time.
B)playback time.
C)pixels time.
D)packet time.

Question 10

Real-time Transport Protocol (RTP) is protocol designed to handle real-time traffic on the

A)frames.
B)internet.
C)ip.
D)protocol.

Question 11

In Session Initiation Protocol (SIP), session can be terminated with a

A)ok message.
B)bye message.
C)terminate message.
D)quit message.

Question 12

RTCP stands for

A)real-time transport control program.
B)real-time transport control packet.
C)real-time transport control protocol.
D)real-time transport control path.

Question 13

A compressed audio/video file can be downloaded as a

A)image.
B)video.
C)frame.
D)text file.

Question 14

When a caller needs to communicate with callee, caller can use e-mail address instead of IP address in the

A)ok message.
B)bye message.
C)invite message.
D)great message.

Question 15

In Real Time Interactive Audio Video, a sequence number on each packet is required for

A)real-time traffic.
B)real-time playback.
C)real-time pixels.
D)real-time frames.

Question 16

Before audio or video signals can be sent on Internet, they need to be

A)channelized.
B)managed.
C)digitized.
D)organized.

Question 17

For speech, we need to compress digitize signals at

A)128 khz.
B)256 khz.
C)64 khz.
D)1152 khz.

Question 18

Moving Picture Experts Group (MPEG-1), was designed for a

A)pc.
B)cd.
C)dvd.
D)floppy.

Question 19

Perceptual encoding is based on science of

A)frames.
B)music.
C)rhythm.
D)psychoacoustics.

Question 20

Media player uses URL in metafile to access media server to

A)download file.
B)upload file.
C)stored the file.
D)stream file.

Question 21

In Real Time Interactive Audio Video, mixing means combining several streams of traffic into

A)1 stream.
B)2 stream.
C)3 stream.
D)4 stream.

Question 22

According to Nyquist theorem, if highest frequency of signal is f, we need to sample signal

A)19 times/sed.
B)20 times/sed.
C)21 times/sed.
D)22 times/sed.

Question 23

In temporal compression, redundant frames are

A)channelized.
B)organized.
C)digitized.
D)removed.

Question 24

Primary Colors for Color TV are

A)blue, white, black.
B)red, green, yellow.
C)red, green, black.
D)red, green, blue.

Question 25

Multilevel Amplitude Shift Keying (MASK) is not implemented with pure Amplitude Shift Keying (ASK), it is implemented with

A)qam.
B)psk.
C)fsk.
D)binary ask.