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220-801 · Question #203

DNS on a client computer provides which of the following functions?

The correct answer is D. Communicate with a remote server for address resolution. DNS resolves human-readable domain names to IP addresses by querying remote name servers. It does not assign addresses or validate logins.

Networking

Question

DNS on a client computer provides which of the following functions?

Options

  • ACommunicate with a remote server for user login validation
  • BCommunicate internally with cached tables for address assignment
  • CCommunicate with a remote server for address assignment
  • DCommunicate with a remote server for address resolution

How the community answered

(48 responses)
  • A
    2% (1)
  • B
    4% (2)
  • C
    2% (1)
  • D
    92% (44)

Why each option

DNS resolves human-readable domain names to IP addresses by querying remote name servers. It does not assign addresses or validate logins.

ACommunicate with a remote server for user login validation

Login validation is handled by authentication protocols such as RADIUS, LDAP, or Kerberos, not DNS.

BCommunicate internally with cached tables for address assignment

Address assignment from internal cached tables describes ARP cache behavior or DHCP lease renewal, not DNS.

CCommunicate with a remote server for address assignment

Address assignment is the function of DHCP, not DNS; DNS resolves names to addresses but does not assign them.

DCommunicate with a remote server for address resolutionCorrect

DNS clients communicate with a remote DNS server to perform address resolution - converting fully qualified domain names (FQDNs) into IP addresses. This lookup process is the core function of DNS on any client device, enabling the client to locate network resources by name rather than by IP address.

Concept tested: DNS name resolution client function

Source: https://learn.microsoft.com/en-us/windows-server/networking/dns/dns-top

Topics

#DNS#name resolution#TCP/IP services#client configuration

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