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MCQs

Total Questions : 885 | Page 57 of 89 pages
Question 561. The EIA-232 interface has _____ pins.
  1.    30
  2.    20
  3.    25
  4.    None of these
  5.    24
 Discuss Question
Answer: Option C. -> 25
Question 562. After you have verified that TCP/IP is installed correctly, what is the next step in verifying the TCP/IP configuration?
  1.    None of these
  2.    Ping the Microsoft Web site
  3.    Ping the address of the local host
  4.    Ping the broadcast address
  5.    Ping a distant router.
 Discuss Question
Answer: Option C. -> Ping the address of the local host
Question 563. The channel in the data communication model can be
  1.    radio signals
  2.    All of these
  3.    postal mail service
  4.    telephone lines
  5.    None of these
 Discuss Question
Answer: Option B. -> All of these
Question 564. In OSI model, which of the following layer transforms information from machine format into that understandable by user
  1.    application
  2.    physical
  3.    None of these
  4.    presentation
  5.    session
 Discuss Question
Answer: Option D. -> presentation
Question 565. Which of the following is an important characteristic of LAN?
  1.    None of these
  2.    application independent interfaces
  3.    unlimited expansion
  4.    parallel transmission
  5.    low cost access for low bandwidth channels
 Discuss Question
Answer: Option B. -> application independent interfaces
Question 566. A modem is connected in between a telephone line and a
  1.    communication adapter
  2.    computer
  3.    None of these
  4.    network
  5.    serial port
 Discuss Question
Answer: Option A. -> communication adapter
Question 567. What frequency range is used for TV transmission and low power microwave applications?
  1.    Super High Frequency : 3000 MHz to 30000 MHz
  2.    Ultra High Frequency : 300 MHz to 3000 MHz
  3.    Medium Frequency : 300 kHz to 3 MHz
  4.    Very Low Frequency : 3 kHz to 30 kHz
  5.    None of these
 Discuss Question
Answer: Option B. -> Ultra High Frequency : 300 MHz to 3000 MHz
Question 568. Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer:
  1.    None of these
  2.    Bandwidth alternatives
  3.    Inter organizational networks
  4.    Switching alternating
  5.    Extranets
 Discuss Question
Answer: Option B. -> Bandwidth alternatives
Question 569. A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?
  1.    120 seconds
  2.    20 seconds
  3.    12 seconds
  4.    None of these
  5.    2 seconds
 Discuss Question
Answer: Option B. -> 20 seconds
Question 570. What function does a serial interface perform in data communication?
  1.    Decodes incoming signals into computer data
  2.    Converts parallel data into a stream of bits
  3.    Converts serial data into audio signals
  4.    Converts analog signals into digital signals
  5.    None of these
 Discuss Question
Answer: Option B. -> Converts parallel data into a stream of bits

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