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MCQs

Total Questions : 885 | Page 46 of 89 pages
Question 451. If the ASCII character H is sent and the character I is received, what type of error is this?
  1.    recoverable
  2.    single-bit
  3.    multiple-bit
  4.    burst
 Discuss Question
Answer: Option B. -> single-bit
Question 452. UDP is:
  1.    Connectionless and unreliable
  2.    None of these
  3.    Not a part of the TCP/IP suite
  4.    Connection orientated and reliable
  5.    Connection oriented and unreliable
 Discuss Question
Answer: Option A. -> Connectionless and unreliable
Question 453. What frequency range is used for microwave communications, satellite and radar?
  1.    Medium Frequency : 300 kHz to 3 MHz
  2.    Low Frequency : 30 kHz to 300 kHz
  3.    Extremely High Frequency :30,000 MHz
  4.    None of these
  5.    Super High Frequency : 3000 MHz to 30000 MHz
 Discuss Question
Answer: Option C. -> Extremely High Frequency :30,000 MHz
Question 454. Business meeting and conferences can be held by linking distantly located people through a computer network. Not only the participants exchange information but are able to see each other. What is it called?
  1.    Teleconferencing
  2.    Telemeeting
  3.    Telemailing
  4.    Teletalking
  5.    None of these
 Discuss Question
Answer: Option A. -> Teleconferencing
Question 455. The interactive transmission of data within a time sharing system may be best suited to
  1.    full-duplex lines
  2.    half-duplex lines
  3.    biflex-line
  4.    simplex lines
  5.    None of these
 Discuss Question
Answer: Option B. -> half-duplex lines
Question 456. A WATS arrangement
  1.    None of these
  2.    is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
  3.    is always less expensive than flat-rate service
  4.    is never less expensive than flat-rate service
  5.    is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
 Discuss Question
Answer: Option E. -> is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
Question 457. What OSI layer handles logical address to logical name resolution?
  1.    An alias for the computer name
  2.    Physical
  3.    Transport
  4.    Data Link
  5.    Presentation
 Discuss Question
Answer: Option C. -> Transport
Question 458. Which of the following is an example of a client-server model?
  1.    None of these
  2.    DNS
  3.    TELNET
  4.    All of these
  5.    FTP
 Discuss Question
Answer: Option D. -> All of these
Question 459. The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?
  1.    An alias for the computer name
  2.    A physical address that is randomly assigned each time the computer is started
  3.    The logical domain address for the workstation
  4.    A physical address that is assigned by the manufacturer
  5.    A logical address that identifies the workstation
 Discuss Question
Answer: Option D. -> A physical address that is assigned by the manufacturer
Question 460. A global network of millions of business, government, educational, and research networks; computer systems; database; and end users. Select the best fit for answer:
  1.    Internet technologies
  2.    Internet revolution
  3.    None of these
  4.    The Internet
  5.    Internet works
 Discuss Question
Answer: Option D. -> The Internet

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