Internet Applications Quiz 2

1
Internet ApplicationsQuiz 2

• Sec 1
• 22nd Aug 2003

2
1

• Subject-oriented search engines use a combination
  of human beings and robots known as
• A) spiders.
• B) search assistants.
• C) meta assistants.
• snakes.
• none of the above

3
2

• By default, Yahoo combines search terms with the
  Boolean operator _______
• A) AND.
• B) OR.
• C) NOT.
• NEAR.
• AND NOT

4
3

• Of the following, which search tool would be most
  likely to find misleading or false information?
• A) ERIC
• B) About.com
• C) Google.com
• Northern Light
• None of the above

5
4

• True or False ?
• Metasearching means to search both Web pages and
  Usenet newsgroups.

6
5

• Which of the following statements are false?
• A) Plain text is the most prevalent file format
  on the World Wide Web, because almost every Web
  page is encoded in plain text.
• B) GIF files use a lossy compression process.
• C) GIF files are limited to a palette of 256
  colors.
• D) Both A and B.

7
6

• Which of the following statements are false?
• A) MIDI takes up so little space that it is a
  very popular format for transmitting music over
  the Internet.
• B) In the AVI video format audio frames are
  interleaved with the video frames.
• C) In the AVI video format the sound track plays
  without interruption because the audio always
  takes priority.
• D) None of the above.

8
7

• While browsing the web, you notice an image of a
  credit card that appears to "jump" around the
  screen. This card is most likely which of the
  following file types?
• A) MIDI
• B) Animated GIF
• C) AIFF
• D) PNG

9
8

• Which digital video format uses delta-frame
  encoding for compression?
• A) AVI
• B) MOV
• C) QT
• MPEG
• VDO

10
9

• True or False
• RealAudio files cannot be referenced directly by
  a Web page.

11
10

• Which of the following is a good reason to use
  in-text citations instead of footnotes on a Web
  page?
• A) Web documents are not paginated.
• B) Screen resolution varies from user to user.
• C) The user can scroll a Web document to any
  position on the page.
• D) All of the above.

12
11

• True or False
• A virus does not necessarily do all of its damage
  immediately. It can continue to do damage over a
  period of time.

13
Internet ApplicationsQuiz 2

• Sec 2
• 22nd Aug 2003

14
1

• MPEG is expected to become the digital video
  standard for which of the following?
• A) compact discs
• B) cable TV
• C) high-definition television
• D) all of the above

15
2

• True or False ?
• Metacrawler conducts searches by sending queries
  to several Web search engines.

16
3

• Which image format should you use if you need
  more that 256 different colors in a picture?
• A) GIF
• B) JPEG
• C) WAV
• D) SND

17
4

• Askme.com is an example of which of the
  following?
• A) metasearch engine
• B) search engine
• C) human search service
• D) FTP search site

18
5

• True or False ?
• Subject-oriented search engines are likely to
  find more material than keyword search engines.

19
6

• Archie is a search tool for _________

20
7

• Which of the following statements are true?
• A) MIDI files have excellent sound quality but
  require a large amount of bandwidth to transmit.
• B) A MIDI file is not a recording of a waveform,
  but rather a series of codes that can be
  converted into a waveform.
• C) MIDI takes up so little space that it is a
  very popular format for transmitting video over
  the Internet.
• D) Both A and B.

21
8

• True or False
• Every browser supports GIF and JPEG formats.

22
9

• The new graphics format that the W3C is working
  on is called _______.

23
10

• True or False
• Netscape Communicator and Internet Explorer
  contain native support for playing .wav files.

24
11

• True or False
• In-text citations are the best way to refer to
  scholarly references in a Web document.

25
Internet ApplicationsQuiz 2

• Sec 3
• 22nd Aug 2003

26
1

• True or False
• The goal of the new graphics format PNG is to
  create a fast, lossless, patent-free file format
  that can handle pictures containing up to 48 bits
  of color information per pixel.

27
2

• A RealAudio ________ is a text file that contains
  the Web address of a RealAudio file.

28
3

• GIF files are limited to a palette of _______
  colors.

29
4

• True or False
• To conserve hard disk space you should delete a
  self-extracting archive after you run it.

30
5

• The Boolean operator AND means that you will get
  a match only when ____________ of the search
  terms are found together in an item.

31
6

• True or False ?
• Keyword search engines are likely to find more
  material than subject-oriented searches.

32
7

• True or False ?
• Metasearching means to use a search engine that
  invokes other search engines automatically,
  conducting different kinds of searches for you,
  collating the results into one list of hits, and
  reporting back to you.

33
8

• True or False
• Delta-frame encoding shrinks data by storing only
  the information that changes between frames.

34
9

• Every sound has a waveform that describes its
  __________ and _________ content.

35
10

• Which of the following statements do not apply to
  BOTH an archived file and a self-extracting
  archive.
• A) It is compressed.
• B) It can contain several files.
• C) Running the file will unpack the files and
  store them on your computer.
• D) All of the above apply to BOTH an archived
  file and a self-extracting archive.

36
11

• Which of the following statements are true?
• A) Once a file is successfully downloaded from
  the Internet the threat of a virus infecting your
  computer is non-existent.
• B) Data files such as .doc and .xls files are
  unable to transmit viruses.
• C) The most vulnerable types of files for
  spreading a virus are .txt files.
• D) None of the above.