LPIC-2 Network Client Management Practice Question
Which TWO configuration files are commonly used to specify DNS resolver settings on a Linux system? (Select TWO.)
⚠ Common exam trap
Many candidates confuse /etc/nsswitch.conf with DNS resolver configuration, but it only controls the lookup order (e.g., 'hosts: files dns') and does not contain nameserver addresses.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
/etc/systemd/resolved.conf
/etc/systemd/resolved.conf is the configuration file for systemd-resolved, a service that manages DNS resolution on modern Linux systems. Option C is correct because /etc/resolv.conf is the traditional configuration file for specifying DNS resolver settings, including nameserver addresses and search domains, and is still widely used.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
/etc/nsswitch.conf
Why it's wrong here
Controls the order of name resolution services, not DNS server addresses.
- ✓
/etc/systemd/resolved.conf
Why this is correct
Configuration file for systemd-resolved, which can manage DNS settings.
- ✓
/etc/resolv.conf
Why this is correct
The main configuration file for DNS resolver.
- ✗
/etc/dhcp/dhclient.conf
Why it's wrong here
DHCP client configuration; can override DNS but is not a DNS resolver configuration file itself.
- ✗
/etc/hosts
Why it's wrong here
Static hostname-to-IP mapping file, not DNS resolver configuration.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-2 practice question is part of Courseiva's free LPI certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LPIC-2 exam.