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Module 3: Network Layer & Routing

20162m

Which one of the following protocols is NOT used to resolve one form of address to another one?
(i) DNS
(ii) ARP
(iii) DHCP
(iv) RARP

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Answer

(iii) DHCP

Explanation

The question asks which protocol is not used to resolve one form of address to another.

  • DNS: Resolves domain names to IP addresses (and supports reverse/other mappings).
  • ARP: Resolves an IPv4 address to a MAC address on a local network.
  • RARP: Historically resolved a MAC address to an IP address.
  • DHCP: Dynamically assigns network configuration such as an IP address, subnet mask, gateway, and DNS server information. It is not primarily an address-resolution protocol.

Therefore the correct answer is (iii) DHCP.

Final answer: (iii) DHCP.

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