NSE7 Enterprise Firewall and VDOMs Practice Question
A FortiGate with multiple VDOMs is experiencing high CPU usage. The administrator suspects that one VDOM is consuming excessive resources. Which THREE methods can be used to limit resource usage per VDOM?
⚠ Common exam trap
Many candidates confuse 'resource reservation' (which guarantees resources for HA) with 'resource limits' (which cap usage per VDOM), leading them to select Option B, which is unrelated to per-VDOM CPU control.
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
✓
Apply per-VDOM traffic shaping policies
Per-VDOM traffic shaping policies allow the administrator to apply bandwidth limits and QoS policies specifically to traffic within a particular VDOM, preventing that VDOM from monopolizing the FortiGate's CPU resources. This is achieved by configuring shaping policies under the VDOM's firewall policy that match traffic and apply a traffic shaper, which can limit bandwidth and prioritize traffic, thereby reducing CPU load from that VDOM.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Apply per-VDOM traffic shaping policies
Why this is correct
Traffic shaping limits bandwidth per VDOM.
- ✗
Enable HA resource reservation
Why it's wrong here
HA resource reservation is for HA clusters, not per VDOM.
- ✓
Configure VDOM resource limits (CPU/memory)
Why this is correct
VDOM resource limits restrict CPU and memory usage per VDOM.
- ✗
Enable VDOM logging
Why it's wrong here
Logging does not limit resource usage.
- ✓
Set the VDOM CPU quota
Why this is correct
CPU quota limits the CPU usage for a VDOM.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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