Computer Networks

501. MSCs acts as a ____________

  1. Switching
  2. Local Switching exchange
  3. Remote Switching exchange
  4. None of these

Correct answer: (B)
Local Switching exchange

502. MSISDN number consists of

  1. Country code(such as 91 for India)
  2. National subscriber destination code
  3. Subscriber number
  4. All of these

Correct answer: (D)
All of these

503. MSISDN stands for

  1. Mobile Subscriber ISDN Number
  2. Mobile Station ISDN Number
  3. Mobile Switching ISDN Number
  4. Mobile Standard ISDN Number

Correct answer: (A)
Mobile Subscriber ISDN Number

504. MTA stands for

  1. Message Transmission Agent
  2. Machine Transfer Agent
  3. Message Transfer Agent
  4. Mobile Transfer Agent

Correct answer: (C)
Message Transfer Agent

505. Multi-path routing can be achieved in

  1. Distance-vector type
  2. Link-state type
  3. Both a & b
  4. None of these

Correct answer: (C)
Both a & b

506. NAK means

  1. None Acknowledge
  2. Noise Acknowledge
  3. Negative Acknowledgement
  4. Network Acknowledgement

Correct answer: (C)
Negative Acknowledgement

507. Name the two chief databases

  1. Home location register(HLR)
  2. Visitor location register(VLR)
  3. Both a & b
  4. None of these

Correct answer: (C)
Both a & b

508. Narrow band ISDN is a digital service where the transport speeds are ____________ (T1) or less

  1. 1.533Mbps
  2. 1.544Mbps
  3. 1.555Mbps
  4. 1.552Mbps

Correct answer: (B)
1.544Mbps

509. Narrow band ISDN provides for the following services

  1. Circuit-switched voice
  2. Circuit-switched data
  3. Low-speed packet
  4. High-speed packet.
  5. A All of these

Correct answer: (E)
A All of these

510. NAUN stands for

  1. Nearest Active Upstream Neighbour
  2. Network Active Upstream Neighbour
  3. Network administrator Upstream Neighbour
  4. None of these

Correct answer: (A)
Nearest Active Upstream Neighbour

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