Setting a DNS resolver | LinuC Level 1 102 Exam original practice question

1.07.4Basic

Configure the DNS client to query resolver 192.0.2.53 through /etc/resolv.conf.

Which line is appropriate?

Hint 1: Focus on resolver scope

Separate resolver directives, DNS record types, NSS sources, and query timing before comparing the settings or commands.

Hint 2: Key terms

Review the short definitions of resolver settings, DNS records, NSS sources, and query timing involved.

nameserver: A resolver setting that identifies a DNS server.
/etc/resolv.conf: The file that configures local resolver servers and behavior.
server=: An assignment-style server setting used by some service configurations.
dns:: A source label that is distinct from the resolver nameserver directive.
Resolver configuration: Local settings used when applications request name resolution.

Detailed explanation

Correctnameserver 192.0.2.53

Correct. It sets 192.0.2.53 as a DNS nameserver.

Incorrectserver=192.0.2.53

Incorrect. server= is not the resolv.conf nameserver directive.

Incorrectdns: 192.0.2.53

Incorrect. This is not a standard resolv.conf form.

Incorrect192.0.2.53 nameserver

Incorrect. The directive must precede the address.

An example you can run in a temporary verification environment.

printf '%s
' 'nameserver 192.0.2.53' | awk '{print $1, $2}'

nameserver 192.0.2.53

Foundation review

A resolver directive that identifies a DNS server to query.

The local file that configures resolver servers and query behavior.

Settings used when applications request name resolution.

Question IDKL-102-1003

EnvironmentPOSIX awk / 一時標準入力のみ

Last technical review2026-08-13

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