ITPEC IP October 2023 Question 32
ITPEC IP October 2023 — Question 32 of 100
DNS, the Domain Name System, maps human-readable domain names to IP addresses and can also provide other domain-related records. A resolver queries the distributed DNS hierarchy so software can reach a host by name instead of requiring users to remember its numerical address. Reverse lookup can map an address back to a name.
Answer (a)
Why not others:
- (b) FTP transfers files
- (c) SMTP sends email between clients and servers or among mail servers
- (d) Web refers broadly to interlinked resources and services, not the name-resolution mechanism
Key rule: DNS resolves names and addresses; FTP transfers files, and SMTP transfers email.
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