ITPEC IP April 2020 Question 30
ITPEC IP April 2020 — Question 30 of 100
DNS associates domain names with IP addresses. A resolver queries the hierarchical Domain Name System so a human-readable name can be translated into the network address needed to contact the destination.
Answer (b)
Why not others:
- ARP relates an IP address to a local MAC address
- routers select packet-transfer paths using routing information
- a modem converts between signal forms for a communication link
Key rule: DNS performs name resolution; it lets applications use stable domain names instead of requiring users to remember numeric IP addresses.
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