Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

You are connected to a production Ubuntu server only through SSH. Before copying a new YAML file into /etc/netplan, you want to make sure the change is automatically rolled back if you forget to confirm it. Which command and behaviour combination correctly meets this requirement when you rely on Netplan's default settings?

  • sudo netplan revert --config-file /root/new.yaml - there is no such sub-command in Netplan, so no rollback would occur.

  • sudo netplan try --config-file /root/new.yaml - applies the file, then reverts automatically unless you confirm it within 120 seconds.

  • sudo netplan generate --config-file /root/new.yaml - only validates and generates backend files; it never touches the running network.

  • sudo netplan apply --config-file /root/new.yaml - writes and keeps the new settings permanently.

CompTIA Linux+ XK0-006 (V8)
System Management
Your Score:
Settings & Objectives
Random Mixed
Questions are selected randomly from all chosen topics, with a preference for those you haven’t seen before. You may see several questions from the same objective or domain in a row.
Rotate by Objective
Questions cycle through each objective or domain in turn, helping you avoid long streaks of questions from the same area. You may see some repeat questions, but the distribution will be more balanced across topics.

Check or uncheck an objective to set which questions you will receive.

Wipe Score
Bash, the Crucial Exams Chat Bot
AI Bot