Basic CS-Networks [TCS Placement]: Sample Questions 85 - 86 of 133

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Question 85


Describe in Detail


Define Decoder?


  • Decoder translates encoded data into its original format (e. g. it decodes the data) .
  • For example, previously the term was used for MPEG-2 video and sound data, which must be decoded before it is output.
  • As another example, decoding is the conversion of an n-bit input code to an m-bit output code with , such that each valid code work produces a unique output code.
  • In cryptography, decoding is the process of converting encrypted code into plain text or any format that is useful for subsequent processes.
  • Hardware decoder is a multiple-input, multiple-output logic circuit which converts coded inputs into coded outputs, where the input and output codes are different.
Given the Image is Define the Decoders

Question 86


Write in Short

Short Answer▾

What is Bit stuffing?


Bit stuffing adds one extra 0 whenever five consecutive 1՚s follow a 0 in the data, so that the receiver does not mistake the pattern 0111110 for a flag- each frame begins and ends with a special bit pattern called a flag byte [01111110] .

Given the Image is Defining the Bit Stuffing

Developed by: