mediumMultiple ChoiceObjective-mapped
CAS-004 Practice Question: The security engineer notices that SSH login…
Exhibit
Refer to the exhibit. show security policies Policy Name: Web-Server-Access Source Zone: untrust Dest Zone: dmz Source Address: any Dest Address: 10.1.1.100 Application: http, https Action: permit Log: session-init Policy Name: Remote-Admin Source Zone: vpn Dest Zone: mgmt Source Address: 10.2.2.0/24 Dest Address: 192.168.1.1 Application: ssh, https Action: permit Log: session-close
The security engineer notices that SSH login attempts to 192.168.1.1 from the untrust zone are being blocked. Which policy misconfiguration is MOST likely causing this?
⚠ Common exam trap
A common misconception is that a correct destination address or application is sufficient for traffic to pass, when in fact the source zone must be explicitly permitted in the firewall policy.
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
✓
The source zone is not permitted
The security engineer observes SSH login attempts from the untrust zone to 192.168.1.1 being blocked. In a typical firewall policy, the source zone must be explicitly permitted for traffic to be allowed. If the source zone 'untrust' is not included in the policy's source zone list, the firewall will drop the traffic regardless of other correct parameters. This is the most likely misconfiguration because SSH traffic from the untrust zone is reaching the destination but being denied at the policy level.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The application is incorrect
Why it's wrong here
SSH is listed in the application field, so it is correct.
- ✓
The source zone is not permitted
Why this is correct
The policy only allows source zone vpn; untrust is not allowed, causing the block.
- ✗
The log setting prevents connections
Why it's wrong here
Log settings only affect logging, not access decisions.
- ✗
The destination address is incorrect
Why it's wrong here
The destination address 192.168.1.1 is correct for the remote admin.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA 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 CAS-005 exam.