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Computer & Networking BasicsDHCP

A DHCP relay is useful when the DHCP server and client are?

  • AOn different IP subnets
  • BInside the same CPU register
  • CConnected by no network
  • DUsing only loopback addresses
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Correct Answer: A. On different IP subnets
Explanation: DHCP discovery begins with local broadcasts, so a relay can forward DHCP messages between client and server across router boundaries.
Reference: Standard computer and networking fundamentals: dhcp
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