350-601 Security Practice Question
Which three actions can be taken when a port security violation occurs? (Choose three.)
⚠ Common exam trap
Cisco often tests the distinction that errdisable recovery is a recovery mechanism, not a violation action, and that logging is a behavior of restrict, not a separate configurable action.
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
✓
Shutdown
When a port security violation occurs, the switch can be configured to take one of three actions: shutdown, restrict, or protect. The shutdown action (A) immediately disables the port and places it in an errdisable state, which is the default behavior. This is correct because it provides the most secure response by completely blocking traffic from the violating MAC address.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Shutdown
Why this is correct
Disables the port in errdisable state.
- ✓
Restrict
Why this is correct
Drops offending frames and generates a log/SNMP trap.
- ✓
Protect
Why this is correct
Drops offending frames silently.
- ✗
Errdisable recovery
Why it's wrong here
This is an automatic recovery mechanism, not a violation action.
- ✗
Log
Why it's wrong here
Logging is part of restrict mode, not a standalone action.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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