hardMultiple ChoiceObjective-mapped
ISC2 CC Practice Question: Is a potential security issue commonly found in…
Exhibit
Refer to the exhibit. --- # firewall config snippet policy id=10 name "Allow Web" from zone=Trust to zone=Untrusted source 192.168.1.0/24 destination any application ssl action permit log end ---
Which of the following is a potential security issue commonly found in firewall configurations?
⚠ Common exam trap
ISC2 often tests the misconception that only inbound traffic needs inspection because threats come from the internet, but the trap is that outbound traffic can carry malicious payloads or exfiltrate data, making outbound inspection equally important for a defense-in-depth strategy.
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
✓
Outbound traffic is not inspected for malicious content
A common firewall misconfiguration is to inspect only inbound traffic while allowing outbound traffic without inspection. This can allow malicious content such as command-and-control traffic or data exfiltration to leave the network undetected. Outbound traffic inspection is often overlooked, making it a potential security issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Logging is not enabled at session start
Why it's wrong here
Logging is enabled at session end.
- ✓
Outbound traffic is not inspected for malicious content
Why this is correct
SSL traffic is permitted without decryption or inspection.
- ✗
The source is too restrictive
Why it's wrong here
The source is a typical internal subnet.
- ✗
The policy does not specify a destination
Why it's wrong here
Destination 'any' is common for outbound.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
Firewall
A firewall is a network security system that monitors and controls incoming and outgoing traffic based on predetermined security rules to protect trusted internal networks from untrusted external networks.
Key term
Misconfiguration
Misconfiguration is when a system, device, or software is set up incorrectly, leaving it vulnerable to attack or causing it to malfunction.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 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 CC exam.