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IPv6 MCQs

Practice IPv6 MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Computer & Networking BasicsIPv6

IPv6 addresses are how many bits long?

  • A32
  • B64
  • C128
  • D256
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Correct Answer: C. 128
Explanation: IPv6 uses 128-bit addresses, providing a much larger address space than IPv4.
Reference: Standard computer networking fundamentals: ipv6
Question 2
Computer & Networking BasicsIPv6

Which notation is normally used to write IPv6 addresses?

  • AEight groups of hexadecimal values separated by colons
  • BFour decimal octets only
  • CSix binary groups separated by commas
  • DA single 32-bit decimal number
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Correct Answer: A. Eight groups of hexadecimal values separated by colons
Explanation: IPv6 addresses are normally represented as hexadecimal groups separated by colons, with permitted compression rules.
Reference: Standard computer networking fundamentals: ipv6
Question 3
Computer & Networking BasicsIPv6

The IPv6 loopback address is?

  • A::1
  • B::
  • C127.0.0.1
  • DFF:FF:FF:FF:FF:FF
Report an error
Correct Answer: A. ::1
Explanation: IPv6 reserves ::1 as the loopback address.
Reference: Standard computer networking fundamentals: ipv6