Welcome to today’s CompTIA Network+ practice test!

This practice test uses our new UI!

Today’s practice test is based on Subdomain 2.2 (Given a scenario, configure switching technologies and features) 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 2.2 #01
10 questions • Single best answer
Question 1
A senior network technician at a large financial services firm is segmenting the network to isolate trading floor traffic from general office traffic. The technician creates separate broadcast domains on a single managed switch without adding physical hardware. Which switching technology is the technician implementing?
    Question 2
    A help desk analyst receives a ticket reporting that a VoIP phone connected to a switch port is experiencing poor call quality due to traffic congestion. The network team decides to assign the phone to a dedicated VLAN that prioritizes voice traffic. Which feature should the team configure on the switch port?
      Question 3
      The network team at a logistics company is connecting two switches using a trunk link. They discover that management traffic sent without VLAN tags is being placed onto VLAN 1 by default. A security review recommends changing this behavior to reduce the risk of VLAN hopping attacks. Which configuration should the team modify?
        Question 4
        A network engineer at an e-commerce company needs to carry traffic for multiple VLANs between two switches over a single physical connection. The engineer configures the interconnecting ports to insert VLAN identification information into each frame as it traverses the link. Which standard defines this frame tagging method?
          Question 5
          A technician is troubleshooting intermittent connectivity between two switches connected by a single Ethernet cable. Upon inspection, the technician finds that one switch port is configured for full duplex while the other is set to half duplex. Which issue is most likely caused by this mismatch?
            Question 6
            A junior engineer at a healthcare organization wants to enable Layer 3 routing between VLANs on a multilayer switch without deploying a separate router. The engineer creates a logical interface on the switch and assigns it an IP address that will serve as the default gateway for hosts in VLAN 20. Which feature is the engineer configuring?
              Question 7
              A network architect at a university is designing a resilient campus backbone and wants to combine four 10-Gbps links between two core switches into a single logical 40-Gbps connection. This configuration should also provide fault tolerance if one of the physical links fails. Which technology should the architect implement?
                Question 8
                A network administrator at a media production company notices that large file transfers between storage servers connected to the same switch are slower than expected. After investigation, the administrator finds that the switch supports frames larger than the standard 1500-byte Ethernet payload. Enabling support for these larger frames could improve transfer efficiency. Which feature should the administrator configure?
                  Question 9
                  Your organization is expanding its office and has added a second switch to accommodate new workstations. After connecting the new switch to the existing one with two Ethernet cables for redundancy, users report that the network becomes extremely slow and applications time out. Which Layer 2 mechanism should be verified to ensure it is preventing a broadcast storm?
                    Question 10
                    A technician at a managed service provider is configuring a new switch port for a client workstation. The port must belong exclusively to VLAN 50 and should not carry traffic for any other VLAN. The technician also wants the port to automatically add the correct VLAN tag to all outgoing frames destined for the trunk uplink. Which interface configuration mode should the technician assign to this port?

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