hardMultiple ChoiceObjective-mapped
350-701 Practice Question: A security administrator discovers that users are…
A security administrator discovers that users are evading the corporate firewall by using SSH to tunnel HTTP traffic to external servers. Which action can be taken on a Cisco ASA firewall to detect and prevent this?
⚠ Common exam trap
Cisco often tests the misconception that blocking port 22 is a valid solution, but the trap is that this would also block legitimate SSH access, whereas SSH inspection provides granular control without disrupting normal operations.
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
✓
Enable SSH inspection using the 'inspect ssh' command in the global policy
Enabling SSH inspection with the 'inspect ssh' command on a Cisco ASA allows the firewall to monitor SSH control channel negotiations and detect when SSH is being used to tunnel other protocols (like HTTP). The ASA can then enforce policies to block such tunneling, preventing users from bypassing the corporate firewall.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure a dynamic PAT rule to limit the number of SSH sessions
Why it's wrong here
Limiting sessions does not detect tunneling content.
- ✓
Enable SSH inspection using the 'inspect ssh' command in the global policy
Why this is correct
SSH inspection allows the firewall to apply deep inspection and enforce policies on SSH traffic.
- ✗
Create an access-list to block port 22 entirely
Why it's wrong here
Blocking port 22 would disrupt legitimate administrative SSH access.
- ✗
Implement SSL decryption to inspect the encrypted SSH payload
Why it's wrong here
SSH uses its own encryption, not SSL/TLS, so SSL decryption is ineffective.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-701 practice question is part of Courseiva's free Cisco 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 350-701 exam.