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CompTIA Network+ Practice Tests

CompTIA Network+ Practice Test for Subdomain 4.3 #01

ByThe Test Master

Apr 12, 2026 #CompTIA, #defense techniques, #network security, #Network+

Welcome to today’s CompTIA Network+ practice test!

This practice test uses our new UI!

Today’s practice test is based on Subdomain 4.3 (Given a scenario, apply network security features, defense techniques, and solutions) from the CompTIA Network+ N10-009 objectives.

This beginner-level practice test is inspired by the CompTIA Network+ (N10-009) exam and is designed to help you reinforce key networking concepts on a daily basis.

These questions are not official exam questions, nor are they brain dumps, but they reflect topics and scenarios relevant to the Network+ certification. Use them to test your knowledge, identify areas for improvement, and build daily cybersecurity habits.

Note: CompTIA and Network+ are registered trademarks of CompTIA. This content is not affiliated with or endorsed by CompTIA.

To choose CompTIA Network+ practice tests based on specific domains/subdomains, click that link.

Recommended read: Ultimate CompTIA Network+ Study Guide (2026)

CompTIA Network+ Practice Test for Subdomain 4.3 #01
10 questions • Single best answer
Question 1
A network administrator at a university deploys a firewall to block unauthorized inbound traffic while allowing approved services. Which security solution is being implemented?
    Question 2
    A security engineer at a data center deploys a system that actively blocks malicious traffic after detecting suspicious patterns in real time. Which solution is this?
      Question 3
      A systems administrator enforces a policy requiring all devices to meet security standards before connecting to the corporate network. Which solution is being used?
        Question 4
        A company deploys a centralized system that collects and analyzes logs from multiple network devices to detect threats. Which solution is this?
          Question 5
          A network engineer configures switch ports to allow only specific MAC addresses to connect, preventing unauthorized devices. Which feature is being used?
            Question 6
            A remote employee connects to the corporate network using an encrypted tunnel over the internet. Which security solution is being used?
              Question 7
              A security team deploys a device that sits between users and the internet to filter web traffic and block malicious sites. Which solution is this?
                Question 8
                A company implements segmentation to isolate sensitive systems from the rest of the network, reducing the attack surface. Which technique is being applied?
                  Question 9
                  An administrator installs endpoint protection software on all company laptops to detect malware and unauthorized activity. Which solution is being used?
                    Question 10
                    A network team configures a system to detect unusual behavior patterns across the network and generate alerts without blocking traffic. Which solution is this?
                      Answered: 0/10

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