Computer Networks

531. PAD stands for

  1. Packet Assembly and Disassembly
  2. Procedure Assembly and Disassembly
  3. Permanent Assembly and Disassembly
  4. Package Assembly and Disassembly

Correct answer: (A)
Packet Assembly and Disassembly

532. PCM is a coding scheme used in digital communication because of ____________ sensitive to noise

  1. Less
  2. Middle
  3. High
  4. None of these

Correct answer: (A)
Less

533. PCM requires bandwidth of

  1. 21Kbps
  2. 24Kbps
  3. 64Kbps
  4. 65Kbps

Correct answer: (C)
64Kbps

534. PDA stands for

  1. Personal Device Assistant
  2. Pointer Description Assistant
  3. Personal Digital Assistant
  4. Personal Description Analog

Correct answer: (C)
Personal Digital Assistant

535. PDAs means

  1. Personal Digital Assistants
  2. Personal Double Assistants
  3. Personal Digital Analogs
  4. Power Digital Assistants

Correct answer: (A)
Personal Digital Assistants

536. PDH means

  1. Plesiochronous Digital Hierarchy
  2. Plasma Digital Hierarchy
  3. Pointer Double Hard disk
  4. Plasma Double Hierarchy

Correct answer: (A)
Plesiochronous Digital Hierarchy

537. PDU stands for

  1. Packet Device Unit
  2. Protocol Device Unit
  3. Protocol Data Unit
  4. Protocol Data Universal

Correct answer: (C)
Protocol Data Unit

538. PDUs contain

  1. Source address
  2. Destination address
  3. Both a & b
  4. None of these

Correct answer: (D)
None of these

539. Physical layer is the ____________ which provides transfer of bit streams over the physical radio links through Um interface

  1. Lowest layer
  2. Highest layer
  3. First layer
  4. None of these

Correct answer: (A)
Lowest layer

540. POP3 stands for

  1. Postal Office Protocol
  2. Post Office Protocol
  3. Post Office Program
  4. Posting of Protocol

Correct answer: (B)
Post Office Protocol

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