90+ Multimedia Technology Solved MCQs


A video consists of a sequence of

A. frames.
B. signals.
C. packets.
D. slots.
Answer» A. frames.

If frames are displayed on screen fast enough, we get an impression of

A. signals.
B. motions.
C. packets.
D. bits.
Answer» B. motions.

H.323 uses G.71 or G.723.1 for

A. compression.
B. communication.
C. controlling.
D. conferencing.
Answer» A. compression.

To receive signal, a translator is needed to decode signal and encode it again at a

A. high quality.
B. lower quality.
C. same quality.
D. bad quality.
Answer» B. lower quality.

Session Initiation Protocol (SIP), is very

A. independent.
B. flexible.
C. important.
D. layered.
Answer» B. flexible.

In Audio and Video Compression, each frame is divided into small grids, called picture elements or

A. frame.
B. packets.
C. pixels.
D. mega pixels.
Answer» C. pixels.

Streaming stored audio/video, files are compressed and stored on a

A. ip.
B. server.
C. domain.
D. internet.
Answer» B. server.

Live streaming is still using Transmission Control Protocol ( TCP), and multiple unicasting instead of

A. unicasting.
B. multicasting.
C. layered control.
D. protocol control.
Answer» B. multicasting.

Moving Picture Experts Group (MPEG-2), was designed for high-quality DVD with a data rate of

A. 3 to 6 mbps.
B. 4 to 6 mbps.
C. 5 to 6 mbps.
D. 6 to 6 mbps.
Answer» A. 3 to 6 mbps.

Joint Photographic Experts Group (JPEG) is used to compress

A. music.
B. pictures.
C. images.
D. frames.
Answer» C. images.

Real-time traffic needs support of

A. unicasting.
B. multicasting.
C. layered control.
D. protocol control.
Answer» B. multicasting.

We can divide audio and video services into

A. 1 broad categories.
B. 2 broad categories.
C. 3 broad categories.
D. 4 broad categories.
Answer» C. 3 broad categories.

In Video Compression, an independent frame that is not related to any other frame is called

A. b-frame.
B. c-frame.
C. i-frame.
D. p-frame.
Answer» C. i-frame.

. RTP uses a temporary even-numbered

A. rtcp.
B. smtp.
C. udp port.
D. none.
Answer» C. udp port.

HTTP client accesses Web server by using the

A. send message.
B. get message.
C. auto receive message.
D. none.
Answer» B. get message.

In Joint Photographic Experts Group (JPEG), a gray scale picture is divided into blocks of

A. 5 x 5 pixels.
B. 6 x 6 pixels.
C. 7 x 7 pixels.
D. 8 x 8 pixels.
Answer» D. 8 x 8 pixels.

MP3 produces three data rates from 96 Kbps to

A. 128 kbps.
B. 164 kbps.
C. 256 kbps.
D. 320 kbps.
Answer» B. 164 kbps.

For Music, we need to compress digitize signals at

A. 1.41 i-mhz.
B. 1.42 i-mhz.
C. 1.45 i-mhz.
D. 1.48 i-mhz.
Answer» A. 1.41 i-mhz.

Sometimes real-time traffic needs

A. organization.
B. traffic.
C. channelizing.
D. translation.
Answer» D. translation.

In Real-Time Transport Protocol (RTP), source periodically sends a source description message to give additional infonnation about

A. others.
B. itself.
C. protocols.
D. packets.
Answer» B. itself.

Audio compression can be used for

A. speech or music.
B. voice and data.
C. picture and colors.
D. video and voice.
Answer» A. speech or music.

In Real Time Interactive Audio Video, conferencing requires two way communication between

A. receivers and senders.
B. packet to frames.
C. pixels to packets.
D. frames to pixels.
Answer» A. receivers and senders.

In Real Time Interactive Audio Video, Jitter is introduced in real-time data by delay between

A. frames.
B. layers.
C. pixels.
D. packets.
Answer» D. packets.

Session Initiation Protocol (SIP), has a mechanism that finds the

A. domain.
B. way.
C. ip address.
D. terminal.
Answer» C. ip address.

In Audio and Video Compression, voice is sampled at 8000 samples per second with

A. 5 bits per sample.
B. 6 bits per sample.
C. 7 bits per sample.
D. 8 bits per sample.
Answer» D. 8 bits per sample.

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» A. session initiation protocol.

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» D. stream.

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» A. red, blue, green.

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

A. registration.
B. termination.
C. streaming.
D. translation.
Answer» A. registration.

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

A. transmission.
B. system.
C. streaming.
D. terminating.
Answer» D. terminating.

Real-time traffic needs support of

A. multicasting.
B. translation.
C. integration.
D. security.
Answer» A. multicasting.

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

A. linear layer.
B. lower layer.
C. transport layer.
D. protocol layer.
Answer» C. transport layer.

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

A. pixels.
B. packets.
C. rates.
D. bytes.
Answer» C. rates.

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.
Answer» B. playback time.

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

A. frames.
B. internet.
C. ip.
D. protocol.
Answer» B. internet.

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

A. ok message.
B. bye message.
C. terminate message.
D. quit message.
Answer» B. bye message.

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.
Answer» C. real-time transport control protocol.

A compressed audio/video file can be downloaded as a

A. image.
B. video.
C. frame.
D. text file.
Answer» D. text file.

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.
Answer» C. invite message.

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.
Answer» A. real-time traffic.

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

A. channelized.
B. managed.
C. digitized.
D. organized.
Answer» C. digitized.

For speech, we need to compress digitize signals at

A. 128 khz.
B. 256 khz.
C. 64 khz.
D. 1152 khz.
Answer» C. 64 khz.

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

A. pc.
B. cd.
C. dvd.
D. floppy.
Answer» B. cd.

Perceptual encoding is based on science of

A. frames.
B. music.
C. rhythm.
D. psychoacoustics.
Answer» D. psychoacoustics.

Media player uses URL in metafile to access media server to

A. download file.
B. upload file.
C. stored the file.
D. stream file.
Answer» A. download file.

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.
Answer» A. 1 stream.

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.
Answer» C. 21 times/sed.

In temporal compression, redundant frames are

A. channelized.
B. organized.
C. digitized.
D. removed.
Answer» D. removed.

Primary Colors for Color TV are

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

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.
Answer» A. qam.

In a constellation diagram, a signal element type is represented as a

A. dot.
B. line.
C. x component.
D. y component.
Answer» A. dot.

Term that refers to phase continues through boundary of two signal elements is

A. non coherent bfsk.
B. coherent bfsk.
C. binary ask.
D. multilevel ask.
Answer» B. coherent bfsk.

Example of an analog to analog conversion is

A. radio.
B. video.
C. television.
D. internet.
Answer» A. radio.

Total bandwidth required for Amplitude Modulation (AM) is

A. 2
B. 2(1 + ? )b..
C. 2l.
D. 2f.
Answer» A. 2

AM stations are allowed carrier frequencies anywhere between

A. 5-10khz.
B. 50-100khz.
C. 250-1000khz.
D. 530- 1700 khz.
Answer» D. 530- 1700 khz.

Analog-to-analog conversion can be accomplished in

A. one way.
B. three ways.
C. two ways.
D. four ways.
Answer» B. three ways.

Term that is used to compose matrix of pixel is

A. number.
B. image.
C. video.
D. audio.
Answer» B. image.

Parameter that refers to recording and broadcasting of picture is

A. text.
B. audio.
C. image.
D. video.
Answer» D. video.

Both station can transmit and receive data simultaneously in

A. simplex mode.
B. half duplex mode.
C. full duplex mode.
D. none of above.
Answer» C. full duplex mode.

Each set of bit pattern is called

A. code.
B. unicode.
C. coding.
D. ascii.
Answer» A. code.

Data communications are transfer of data through some

A. transmission medium.
B. linear medium.
C. network lan.
D. protocols.
Answer» A. transmission medium.

When system delivers data accurately then it is called

A. accuracy.
B. delivery.
C. jitter.
D. timelessness.
Answer» B. delivery.

Mode that is like a two way street with traffic flowing in both direction simultaneously is

A. simplex.
B. full duplex.
C. half duplex.
D. none of above.
Answer» B. full duplex.

Agreement between communicating devices are called

A. none of the mentioned
B. message.
C. protocol.
D. transmission medium.
Answer» C. protocol.

Five components that make up a data communications system are message, sender, receiver, and

A. protocol.
B. medium.
C. connecting device.
D. both a and b.
Answer» D. both a and b.

Two computers connected by an Ethernet hub are of

A. lan topology.
B. man topology.
C. wan topology.
D. intranet.
Answer» A. lan topology.

How many bits in data unit has changed in single bit error

A. only 1.
B. two bits.
C. three bits.
D. four bits.
Answer» A. only 1.

To guarantee detection of up to s errors in all cases, minimum hamming distance in a block code must be

A. s.
B. s+1.
C. s-1.
D. 0.
Answer» B. s+1.

Cyclic codes are fast when these are implemented in

A. software.
B. hardware.
C. local area network.
D. wide area network.
Answer» B. hardware.

In block coding, we divide our message into blocks, is called

A. code blocks.
B. packet blocks.
C. code words.
D. datawords.
Answer» D. datawords.

Find parity bit for 1001011

A. 0.
B. 1.
C. 2.
D. none.
Answer» A. 0.

In a cyclic code, decoder is failed to detect any error, when syndrome is

A. zero.
B. non zero.
C. infinity.
D. negative value.
Answer» A. zero.

What is maximum effect of a 2-ms burst of noise on data transmitted for 12 kbps

A. 2 bits.
B. 4 bits.
C. 16 bits.
D. 24 bits.
Answer» D. 24 bits.

Divisor line and XOR are missing if corresponding bit in divisor is

A. 0.
B. 1.
C. 10.
D. 11.
Answer» A. 0.

Unsigned representation of numbers by one's complement can represent

A. positive number.
B. negative number.
C. positive and negative numbers.
D. infinite numbers.
Answer» C. positive and negative numbers.

Checksum is used in Internet by several protocols although not at the

A. session layer.
B. transport layer.
C. network layer.
D. data link layer.
Answer» D. data link layer.

Switching in Internets done by using datagram approach to packet switching at the

A. network layer.
B. application layer.
C. data link layer.
D. physical layer..
Answer» A. network layer.

A Circuit-Switched Network is made of a set of switches connected by physical

A. links.
B. media.
C. nodes.
D. frames.
Answer» A. links.

Iog28 =

A. 0.
B. 1.
C. 2.
D. 3.
Answer» D. 3.

A switch in a datagram network uses a

A. destination address.
B. sender address.
C. routing table.
D. header.
Answer» C. routing table.

Routing processor searches routing table is called

A. switch fabric.
B. buffer.
C. table lookup.
D. rolling table.
Answer» C. table lookup.

A Virtual-Circuit Network (VCN) is normally implemented in the

A. session layer.
B. data link layer.
C. network layer.
D. physical layer.
Answer» B. data link layer.

Which frame completes entries in switching tables

A. acknowledgment frame.
B. setup frame.
C. routing frame.
D. none.
Answer» A. acknowledgment frame.

Virtual-Circuit Networks and datagram networks are sub categories of

A. message-switched networks.
B. packet-switched networks.
C. circuit-switched networks.
D. none of them.
Answer» B. packet-switched networks.

Actual communication in a circuit-switched network requires

A. one phase.
B. two phases.
C. three phases.
D. four phases.
Answer» C. three phases.

In a packet-switched network, resources are allocated

A. randomly.
B. on demand.
C. reserved already.
D. both a and c.
Answer» B. on demand.

In Circuit Switching, resources need to be reserved during the

A. data transfer phase.
B. teardown phase..
C. setup phase.
D. propagation phase.
Answer» C. setup phase.

Circuit Switched Networks are used in

A. cellular network.
B. satellite network.
C. cable network.
D. telephone network.
Answer» D. telephone network.

Term that performs physical and data link functions of packet switch is called

A. input port.
B. output port.
C. routing processor.
D. switching fabric.
Answer» A. input port.

Circuit-Switched Networks are not as efficient as other two types of networks because resources are unavailable to

A. other connections.
B. same connections.
C. other switches.
D. other networks.
Answer» A. other connections.

Asynchronous Transfer Mode (ATM) network is an example of

A. packet switching network.
B. datagram networks.
C. virtual circuit network.
D. message switched network.
Answer» C. virtual circuit network.

Three methods of switching are

A. circuit switching, packet switching, and protocol switching.
B. circuit switching, packet switching, and message switching.
C. loop switching, packet switching, and message switching.
D. node switching, packet switching, and message switching.
Answer» B. circuit switching, packet switching, and message switching.

A circuit-switched network is made of switches connected by physical links, in which each link is divided into

A. n channels.
B. n+1 channels.
C. 2n channels.
D. n-1 channels.
Answer» A. n channels.

A switched network consists of a series of interlinked nodes is called

A. frames.
B. packets.
C. switches.
D. links.
Answer» C. switches.
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