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TCP/IP Protocol Suite, 4/e
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Chapter 25 - Multiple Choice Quiz



1

________ audio/video refers to on-demand requests for compressed audio/video files.
A)Streaming live
B)Streaming stored
C)Interactive
D)None of the choices are correct
2

___________ audio/video refers to the broadcasting of radio and TV programs through the Internet.
A)Interactive
B)Streaming live
C)Streaming stored
D)None of the choices are correct
3

_________ audio/video refers to the use of the Internet for interactive audio/video applications.
A)Interactive
B)Streaming live
C)Streaming stored
D)None of the choices are correct
4

According to the Nyquist theorem, we need to sample an analog signal ________times the highest frequency.
A)three
B)two
C)four
D)None of the choices are correct
5

In ________ encoding, the differences between the samples are encoded instead of encoding all the sampled values.
A)predictive
B)perceptual
C)both predictive and perceptual
D)None of the choices are correct
6

__________ encoding is based on the science of psychoacoustics, which is the study of how people perceive sound.
A)Predictive
B)Perceptual
C)Predictive and perceptual
D)None of the choices are correct
7

____________ is used to compress images.
A)MPEG
B)JPEG
C)MPEG or JPEG
D)None of the choices are correct
8

____________ is used to compress video.
A)MPEG
B)JPEG
C)MPEG or JPEG
D)None of the choices are correct
9

The first phase of JPEG is ___________.
A)DCT transformation
B)quantization
C)data compression
D)None of the choices are correct
10

The second phase of JPEG is ___________.
A)DCT transformation
B)quantization
C)data compression
D)None of the choices are correct
11

The third phase of JPEG is ___________.
A)DCT transformation
B)quantization
C)data compression
D)None of the choices are correct
12

A ________buffer is required for real-time traffic.
A)playback
B)reordering
C)sorting
D)None of the choices are correct
13

A __________on each packet is required for real-time traffic.
A)timestamp
B)sequence number
C)Both a timestamp and a sequence number
D)None of the choices are correct
14

Real-time traffic needs the support of ____________.
A)broadcasting
B)multicasting
C)both a and b
D)None of the choices are correct
15

__________ means changing the encoding of a payload to a lower quality to match the bandwidth of the receiving network.
A)Translation
B)Mixing
C)encoding
D)None of the choices are correct
16

__________ means combining several streams of traffic into one stream.
A)Translation
B)Mixing
C)encoding
D)None of the choices are correct
17

__________ is the protocol designed to handle real-time traffic on the Internet.
A)TCP
B)UDP
C)RTP
D)None of the choices are correct
18

___________ is a protocol for controlling the flow and quality of data.
A)RTP
B)RTCP
C)UDP
D)None of the choices are correct
19

___________ is an application protocol that establishes, manages, and terminates a multimedia session
A)RIP
B)SIP
C)DIP
D)None of the choices are correct
20

_______ is a standard to allow telephones on the public telephone network to talk to computers connected to the Internet.
A)SIP
B)H.323
C)Q.991
D)None of the choices are correct
21

A real-time video performance lasts 10 min. If there is jitter in the system, the viewer spends _______ minutes watching the performance.
A)less than 10
B)more than 10
C)exactly 10
D)None of the choices are correct
22

A _______ shows the time a packet was produced relative to the first or previous packet.
A)timestamp
B)playback buffer
C)sequence number
D)None of the choices are correct
23

_______ are used to number the packets of a real-time transmission.
A)Timestamps
B)Playback buffers
C)Sequence numbers
D)None of the choices are correct
24

In a real-time video conference, data from the server is _______ to the client sites.
A)unicast
B)multicast
C)broadcast
D)None of the choices are correct
25

A _______ adds signals from different sources to create a single signal.
A)timestamp
B)sequence number
C)mixer
D)None of the choices are correct
26

A _______ changes the format of a high-bandwidth video signal to a lower quality narrow-bandwidth signal.
A)timestamp
B)sequence number
C)translator
D)None of the choices are correct
27

An RTP packet is encapsulated in _______.
A)a UDP user datagram
B)a TCP segment
C)an IP datagram
D)None of the choices are correct
28

When there is more than one source, the _______ identifier defines the mixer.
A)synchronization source
B)contributor
C)timestamp
D)None of the choices are correct