CompTIA Network+ Practice Test for Subdomain 4.2 #03

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Welcome to today’s CompTIA Network+ practice test!

This practice test uses our new UI!

Today’s practice test is based on Subdomain 4.2 (Summarize various types of attacks and their impact to the network) 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 of the Day 260630
10 questions • Single best answer
Question 1
A SOC analyst at a financial services firm observes that the company's public-facing web server is receiving millions of connection requests per second from thousands of geographically distributed source IP addresses. The server becomes unresponsive to legitimate customers. Which attack type is occurring?
    Question 2
    A penetration tester discovers that an attacker on a guest VLAN can craft 802.1Q double-tagged frames to reach systems on protected VLANs without routing. The switch processes the nested tags and forwards traffic to the target segment. Which attack technique is being exploited?
      Question 3
      An attacker on a switched network sends an enormous volume of frames with forged source MAC addresses to a switch. The switch's content-addressable memory becomes exhausted, causing it to forward all frames out every port. Which attack is being executed?
        Question 4
        A network attacker sends unsolicited ARP replies to hosts on a local subnet, associating the attacker's MAC address with the IP of the default gateway. Victim hosts update their caches and unknowingly forward traffic through the attacker's machine. Which attack is described?
          Question 5
          A threat actor injects fraudulent records into a name resolution server's cache, causing users querying that server to receive incorrect IP mappings for legitimate domains. Victims are silently redirected to attacker-controlled servers. Which attack is described?
            Question 6
            An attacker connects an unauthorized device to a corporate network and configures it to respond to client address assignment requests before the legitimate server can reply. Clients receive a malicious default gateway and route all traffic through the attacker's device. Which rogue service is being exploited?
              Question 7
              A threat actor parks near a coffee shop and broadcasts a wireless access point using the same SSID and security settings as the legitimate hotspot. Nearby devices automatically associate with the attacker's access point instead of the real one. Which attack is being executed?
                Question 8
                A security researcher demonstrates that an attacker has positioned themselves between a client and a web server, silently relaying and potentially modifying all traffic without either party detecting the interception. Which attack class does this represent?
                  Question 9
                  An employee at an accounting firm receives an email appearing to be from the company CEO requesting urgent wire transfer credentials. The message contains a link to a spoofed internal portal designed to harvest login information. Which social engineering technique is being used?
                    Question 10
                    A security auditor finds that shredding is not consistently used across the organization. An attacker can retrieve intact printed credentials, network diagrams, and internal memos from outdoor trash containers near the building. Which information-gathering technique does this describe?
                      Answered: 0/10

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