305-300 Full Virtualization Practice Question
You need to create a snapshot of a QCOW2 disk image without stopping the virtual machine. Which qemu-img sub-command should be used?
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
✓
virsh snapshot-create-as --domain vm_name --name snap1 --disk-only
qemu-img snapshot -c creates a snapshot, but it should only be done on offline images. For live snapshots, virsh snapshot-create is required.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
qemu-img create -f qcow2 -b image.qcow2 snapshot.qcow2
Why it's wrong here
This creates a backing file, not a live snapshot.
- ✗
qemu-img snapshot -c snapshot_name image.qcow2
Why it's wrong here
qemu-img snapshot cannot be safely used on a running VM image.
- ✓
virsh snapshot-create-as --domain vm_name --name snap1 --disk-only
Why this is correct
virsh is the correct tool for live snapshots of libvirt domains.
- ✗
virsh checkpoint-create vm_name
Why it's wrong here
Checkpoints are for memory state, not disk images.
About these practice questions
This 305-300 question is part of Courseiva's 194-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official LPI exam blueprint
This 305-300 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 305-300 exam.