MCQs in Multimedia

MCQs in Multimedia from the book Data Communications and Networking 4th Edition by Behrouz A. Forouzan. Reviewer in Electronics Systems and Technologies (Communications Engineering).

MCQs for Multimedia

This is the MCQs in Multimedia from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you before taking the Board Exam.

Topic Outline

  • DIGITIZING AUDIO AND VIDEO
  • AUDIO AND VIDEO COMPRESSION
  • STREAMING STORED AUDIO/VIDEO
    • First Approach: Using a Web Server
    • Second Approach: Using a Web Server with Metafile
    • Third Approach: Using a Media Server
    • Fourth Approach: Using a Media Server and RTSP
  • STREAMING LIVE AUDIO/VIDEO
  • REAL-TIME INTERACTIVE AUDIO/VIDEO
  • RTP
  • RTCP
  • VOICE OVER IP
    • SIP
    • H.323

Begin and Good luck!

Choose the letter of the best answer in each questions.

1. _______ 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 above

2. When there is more than one source, the _______ identifier defines the mixer.

  • A)            synchronization source
  • B)            contributor
  • C)            timestamp
  • D)            none of the above

3. __________ is the protocol designed to handle real-time traffic on the Internet.

  • A)            TCP
  • B)            UDP
  • C)            RTP
  • D)            none of the above

4. Jitter is introduced in real-time data by the _______________.

  • A)            error caused during transmission
  • B)            delay between packets
  • C)            both a and b
  • D)            none of the above

5. 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 above

6. An RTP packet is encapsulated in _______.

  • A)            a UDP user datagram
  • B)            a TCP segment
  • C)            an IP datagram
  • D)            none of the above

7. 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 above

8. ____________ is used to compress video.

  • A)            MPEG
  • B)            JPEG
  • C)            either a or b
  • D)            none of the above

9. Real-time traffic needs the support of ____________.

  • A)            broadcasting
  • B)            multicasting
  • C)            both a and b
  • D)           none of the above

10. _______ are used to number the packets of a real-time transmission.

  • A)            Timestamps
  • B)            Playback buffers
  • C)            Sequence numbers
  • D)            none of the above

11. The third phase of JPEG is ___________.

  • A)             DCT transformation
  • B)             quantization
  • C)             data compression
  • D)             none of the above

12. The second phase of JPEG is ___________.

  • A)             DCT transformation
  • B)             quantization
  • C)             data compression
  • D)             none of the above

13. A __________on each packet is required for real-time traffic.

  • A)             timestamp
  • B)             sequence number
  • C)             both a and b
  • D)             none of the above

14. To prevent _________, we can timestamp the packets and separate the arrival time from the playback time.

  • A)             error
  • B)             jitter
  • C)             either a or b
  • D)             none of the above

15. __________ means combining several streams of traffic into one stream.

  • A)             Translation
  • B)             Mixing
  • C)             both a and b
  • D)             none of the above

16. 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 above

17. ___________ 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 above

18. __________ means changing the encoding of a payload to a lower quality to match the bandwidth of the receiving network.

  • A)             Translation
  • B)             Mixing
  • C)             both a and b
  • D)             none of the above

19. ____________ is used to compress images.

  • A)             MPEG
  • B)             JPEG
  • C)             either a or b
  • D)             none of the above

20. A ________buffer is required for real-time traffic.

  • A)             playback
  • B)             reordering
  • C)             sorting
  • D)             none of the above

21. In ________ encoding, the differences between the samples are encoded instead of encoding all the sampled values.

  • A)             predictive
  • B)             perceptual
  • C)             both a and b
  • D)             none of the above

22. __________ encoding is based on the science of psychoacoustics, which is the study of how people perceive sound.

  • A)             Predictive
  • B)             Perceptual
  • C)             both a and b
  • D)             none of the above

23. _________ 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 above

24. 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 above

25. ___________ is an application protocol that establishes, manages, and terminates a multimedia session.

  • A)             RIP
  • B)             SIP
  • C)             DIP
  • D)             none of the above

26. _________ is not suitable for interactive multimedia traffic because it retransmits packets in case of errors.

  • A)             UDP
  • B)             TCP
  • C)             both a and b
  • D)             none of the above

27. RTCP uses an odd-numbered _______ port number that follows the port number selected for RTP.

  • A)             UDP
  • B)             TCP
  • C)             both a and b
  • D)             none of the above

28. We can divide audio and video services into _______ broad categories.

  • A)             three
  • B)             two
  • C)             four
  • D)             none of the above

29. RTP uses a temporary even-numbered _______ port.

  • A)             UDP
  • B)             TCP
  • C)             both a and b
  • D)             none of the above

30. ________ audio/video refers to on-demand requests for compressed audio/video files.

  • A)             Streaming live
  • B)             Streaming stored
  • C)             Interactive
  • D)             none of the above

31. ___________ is a protocol for controlling the flow and quality of data.

  • A)             RTP
  • B)             RTCP
  • C)             UDP
  • D)             none of the above

32. A _______ adds signals from different sources to create a single signal.

  • A)             timestamp
  • B)             sequence number
  • C)             mixer
  • D)             none of the above

33. 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 above

34. The first phase of JPEG is ___________.

  • A)             DCT transformation
  • B)             quantization
  • C)             data compression
  • D)             none of the above

Check your work.

Complete List of Chapter Quiz in Data Communications and Networking

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credit: Behrouz A. Forouzan© 2014 www.PinoyBIX.org

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