ITPEC IP April 2025 Question 31
ITPEC IP April 2025 — Question 31 of 100
DNS links domain names to IP addresses — it lets applications locate network hosts using readable names.
When a user requests a name such as a web domain, the Domain Name System resolves it to the IP address needed for routing packets to the host. DNS can also store other record types, but name resolution is the role described here.
Answer (c)
Why not others:
- (a) is the role of DHCP, which leases network configuration including IP addresses
- (b) is the role of an FTP server
- (d) describes retrieval from a mail server using a protocol such as POP3 or IMAP
Key rule: DNS resolves names, DHCP configures hosts, FTP transfers files, and POP3 or IMAP retrieves mail.
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