FC0-U71 Security Practice Question
A company wants to protect its network from unauthorized external access. Which of the following devices should be configured to filter traffic based on port and protocol?
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
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Network firewall
A network firewall examines incoming and outgoing traffic and can block or allow based on rules involving ports and protocols, providing a barrier between internal and external networks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Network firewall
Why this is correct
Correct: a network firewall filters traffic between networks based on rules.
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Host-based firewall
Why it's wrong here
A host-based firewall runs on a single device; the question asks for network-level protection.
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VPN concentrator
Why it's wrong here
A VPN concentrator handles encrypted tunnels, not general traffic filtering.
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Antivirus software
Why it's wrong here
Antivirus detects and removes malware, but does not filter network traffic by port/protocol.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 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 FC0-U71 exam.