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MCQs

Total Questions : 885 | Page 47 of 89 pages
Question 461. Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select?
  1.    Star
  2.    Bus
  3.    Right
  4.    Ethernet
  5.    Token-Ring
 Discuss Question
Answer: Option B. -> Bus
Question 462. The CCITT Recommendation X.25 specifies three layers of communications:
  1.    datalink, network and transport
  2.    application, presentation and session
  3.    Session, transport and network
  4.    physical datalink and network
  5.    None of these
 Discuss Question
Answer: Option D. -> physical datalink and network
Question 463. Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM?
  1.    Frequency modulation
  2.    Frequency-shift keying
  3.    Amplitude modulation
  4.    None of these
  5.    Frequency-division multiple access
 Discuss Question
Answer: Option E. -> Frequency-division multiple access
Question 464. A T-switch is used to
  1.    echo every character that is received
  2.    transmit characters one at a time
  3.    rearrange the connections between computing equipment
  4.    control how messages are passed between computers
  5.    None of these
 Discuss Question
Answer: Option C. -> rearrange the connections between computing equipment
Question 465. Which of the following allows a simple email service and is responsible for moving messages from one mail server to another?
  1.    POP3
  2.    FTP
  3.    DHCP
  4.    SMTP
  5.    IMAP
 Discuss Question
Answer: Option D. -> SMTP
Question 466. What does 192 translate to in binary?
  1.    11
  2.    11000000
  3.    1111
  4.    None of these
  5.    111110
 Discuss Question
Answer: Option B. -> 11000000
Question 467. An information utility can offer a user
  1.    None of these
  2.    All of these
  3.    news stories from wire services
  4.    complete airline schedules for all domestic flights
  5.    instant bonds and stock quotations
 Discuss Question
Answer: Option B. -> All of these
Question 468. An international standard, multilevel set of protocols to promote compatibility among telecommunications networks. Select the best fit for answer:
  1.    Network Server
  2.    OSI
  3.    None of these
  4.    Network operating system
  5.    Virtual Private Network
 Discuss Question
Answer: Option B. -> OSI
Question 469. The amount of uncertainty in a system of symbol is called
  1.    Entropy
  2.    loss
  3.    Bandwidth
  4.    Quantum
  5.    None of these
 Discuss Question
Answer: Option A. -> Entropy
Question 470. Many large organizations with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such a communication network is called
  1.    None of these
  2.    LAN
  3.    EITHERNET
  4.    WAN
  5.    ECONET
 Discuss Question
Answer: Option D. -> WAN

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