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MAC Addressing MCQs

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

Question 1
Computer & Networking BasicsMAC Addressing

A MAC address is primarily associated with which OSI layer?

  • APhysical layer only
  • BData Link layer
  • CNetwork layer
  • DTransport layer
Report an error
Correct Answer: B. Data Link layer
Explanation: MAC addresses are used for Layer-2 frame delivery on technologies such as Ethernet.
Reference: Standard computer networking fundamentals: mac addressing
Question 2
Computer & Networking BasicsMAC Addressing

A conventional Ethernet MAC address is how many bits long?

  • A32 bits
  • B48 bits
  • C64 bits
  • D128 bits
Report an error
Correct Answer: B. 48 bits
Explanation: Standard Ethernet MAC addresses are 48 bits, commonly written as six hexadecimal octets.
Reference: Standard computer networking fundamentals: mac addressing