Sail E0 Webinar

MCQs

Total Questions : 885 | Page 30 of 89 pages
Question 291. When the computer provides the manager with a multiple choice of possible answers, the prompting technique is
  1.    form filling
  2.    menu selection
  3.    open-ended question
  4.    None of these
  5.    question and answer
 Discuss Question
Answer: Option B. -> menu selection
Question 292. Error detection at a data link level is achieved by
  1.    equalization
  2.    bit stuffing
  3.    None of these
  4.    Hamming codes
  5.    cyclic redundancy codes
 Discuss Question
Answer: Option E. -> cyclic redundancy codes
Question 293. Which network topology is considered passive?
  1.    Cross
  2.    Star
  3.    Ring
  4.    Bus
  5.    Mesh
 Discuss Question
Answer: Option D. -> Bus
Question 294. If digital data rate of 9600 bps is encoded using 8-level phase shift keying (PSK) method, the modulation rate is
  1.    3200 bands
  2.    1200 bands
  3.    None of these
  4.    9600 bands
  5.    4800 bands
 Discuss Question
Answer: Option A. -> 3200 bands
Question 295. If a firm wanted to transmit data from 1,000 punched cards to a remote computer, they would use a(n)
  1.    data collection terminal
  2.    None of these
  3.    batch processing terminal
  4.    intelligent terminal
  5.    POS terminal
 Discuss Question
Answer: Option C. -> batch processing terminal
Question 296. Which address is the loopback address?
  1.    255.255.255.255
  2.    127.0.0.1
  3.    0.0.0.1
  4.    None of these
  5.    127.0.0.0
 Discuss Question
Answer: Option B. -> 127.0.0.1
Question 297. Intranets and extranets can use their network fire walls and other security features to establish secure Internet links within an enterprise or with its trading partners. Select the best fit for answer:
  1.    Network Server
  2.    Virtual Private Network
  3.    OSI
  4.    Network operating system
 Discuss Question
Answer: Option B. -> Virtual Private Network
Question 298. Modem is used in data transmission. When was it invented and in which country?
  1.    1950, USA
  2.    None of these
  3.    1950, Japan
  4.    1965, Germany
  5.    1963, USA
 Discuss Question
Answer: Option A. -> 1950, USA
Question 299. Error rate is
  1.    a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
  2.    a check bit appended to an array of binary digits to make the sum of all the binary digits.
  3.    the ratio of the number of data units in error to the total number of data units
  4.    an error-detecting code based on a summation operation performed on the bits to be checked.
  5.    None of these
 Discuss Question
Answer: Option C. -> the ratio of the number of data units in error to the total number of data units
Question 300. Which of the following technique is used for Time-To-Line (TTL)?
  1.    a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
  2.    All of these
  3.    One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size.
  4.    a technique used in best-effort delivery system to avoid endlessly looping packets.
  5.    None of these
 Discuss Question
Answer: Option D. -> a technique used in best-effort delivery system to avoid endlessly looping packets.

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