Which of the following CHAP packets contains a Code field that is set to a value of 4? (Select the best answer.)

Last Updated on August 7, 2021 by Admin 3

Which of the following CHAP packets contains a Code field that is set to a value of 4? (Select the best answer.)

  • Challenge
  • Failure
  • Response
  • Success
Explanation:
A Challenge Handshake Authentication Protocol (CHAP) Failure packet contains a Code field that is set to a value of 4. A CHAP packet consists of the following fields:
-A oneoctet Code field
-A oneoctet Identifier field, which helps to match challenges to responses
-A twooctet Length field,which indicates the length of the packet
-One or more fields that are determined by the Code field

A Challenge packet has a Code field that is set to a value of 1. It also has the following additional fields:
-A oneoctet ValueSize field, which indicates the length of the Value field
-A variablelength ChallengeValue field, which contains a variable, unique stream of octets
-A variablelength Name field, which identifies the name of the transmitting device

A Response packet has a Code field that is set to a value of 2. It also has the following additional fields:
-A oneoctet ValueSize field, which indicates the length of the Response Value field
-A variablelength Response Value field, which contains a concatenated oneway hash of the ID, the secret key, and the Challenge Value
-A variablelength Name field, which identifies the name of the transmitting device
A Success packet has a Code field that is set to a value of 3. In addition to the standard fields, the Success packet and the Failure packet have a variablelength Message field, which displays a success or failure message, typically in humanreadable ASCII characters.

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