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Network administration questions.

Network administration questions.

Find Network administration university examination questions in acaproso.com

# Question
1

What is fragmentation ? and why is it needed?


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2

With the aid of diagram explain what will happen during data transmission(ARQ) .If NACK  is lost in transit.


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3

Differentiate between the following

  1. circuit switching and Packet switching
  2. TDM and WDM
  3. Padding and redundancy

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4

An 8-bit with  binary value 10110111 is to be encoded using hamming code

  1. What is the binary value after encoding?
  2. Assume the error occurs at bit 3 show how the receiver is going to detect  error.

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5

Given that M(x)=x7 +x5 +x3 +x2 is transmitted using the standard CRC method. The generator polynomial G(x)=x3 +x +1. Show the actual bit string transmitted.


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6

Write the steps followed to detect error in checksum method.


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7

Why do error correction protocols usually number the packets?


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8

With an aid of diagram, explain what will happen during data transmission in GO back N error control ARQ if NACK is lost in transit.


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9

Differentiate between the following

  1. Message switching and packet switching
  2. CDM and FDM

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10

An 8-bit with binary value 10110011 is tobe encoded using Hamming code.

  • What is the binary value after encoding?
  • Assume the error occurs at bit 6 show how the receiver is going to detect error.

Short answers