Question
Which one of the following protocols is NOT used to resolve one form of address to another one?
Official answer and solution
- Official answer
- C
- From
- Official GATE 2016 answer key
Solution
Examine the role of each networking protocol regarding address resolution.
Analyze each protocol:
- DNS (Domain Name System): Resolves human-readable domain names (e.g.
example.com) to IP addresses. - ARP (Address Resolution Protocol): Resolves network-layer IP addresses to data-link-layer MAC (Ethernet) addresses.
- RARP (Reverse Address Resolution Protocol): Resolves data-link-layer MAC addresses to IP addresses.
Now examine DHCP (Dynamic Host Configuration Protocol):
DHCP is a network management protocol used to dynamically assign IP addresses and network configuration parameters (such as subnet mask, default gateway, and DNS servers) to client devices from a central address pool. It does not map or resolve one established address form to another.
Therefore, DHCP is NOT used for address resolution.
C
Confusing address assignment/allocation (DHCP) with address resolution (ARP, RARP, DNS).
The answer is the one in the official GATE answer key. The solution is this site's own explanation.
Source
- Paper
- GATE 2016 Computer Science and Information Technology (CS) Session 1
- Question
- 34 of 65, printed as CS Q.24
- Section
- Computer Science and Information Technology
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