7+ practice questions focused on Networking — one of the most tested topics on the CompTIA A+ Core 1 220-1201 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Networking PracticeA technician is configuring a small office wireless router for a client. The client wants the network to be as secure as possible while still allowing employees to connect easily with a pre-shared key. The router supports WPA2, WPA3, WPA, and WEP. Which security protocol should the technician select?
Explanation: WPA3-Personal provides the strongest security among the listed protocols by using SAE, which enhances protection against offline dictionary attacks and adds forward secrecy. It still supports a pre-shared key for easy employee connectivity. WPA2 is secure but less robust, while WPA and WEP are deprecated and vulnerable. Thus, WPA3-Personal is the correct choice for maximum security with a pre-shared key.
A user reports that they cannot access any websites by typing domain names, but they can access websites by entering IP addresses directly. The technician suspects a DNS issue. Which command should the technician use first to verify the DNS server settings on the user's Windows 10 computer?
Explanation: The ipconfig /all command shows the complete IP configuration, including DNS server addresses, which are essential to verify when name resolution fails. Since the user can reach sites by IP, the problem likely lies with DNS settings or the DNS server itself. Checking the configured DNS servers is the first step before testing resolution with tools like nslookup or ping.
A small business wants to add a guest wireless network that allows visitors to access the internet but prevents them from reaching internal company resources. The existing network uses a single wireless router with a default configuration. Which of the following should a technician implement?
Explanation: A separate guest SSID with client isolation or a guest VLAN isolates guest traffic from the internal network, preventing access to company resources while allowing internet access. This is the most effective and standard solution for the scenario. Other options either do not provide isolation or only add superficial security.
A user reports that their workstation cannot connect to any network resources. The technician notices the network cable is plugged into the wall jack and the NIC, but the link light is off. Which of the following should the technician check FIRST?
Explanation: The link light off indicates a physical layer problem. The first step is always to check the physical connection: cable, wall jack, and NIC port. This is the most efficient troubleshooting step and aligns with the bottom-up troubleshooting methodology. Other options are higher-layer issues that would not cause the link light to be off.
A company has a network with multiple VLANs. Users on VLAN 10 need to access a server on VLAN 20, but they cannot. The technician verifies that the switch ports are correctly assigned and the server is reachable from other VLANs. Which of the following is the MOST likely cause?
Explanation: Inter-VLAN routing requires explicit configuration on a Layer 3 device. If VLAN 10 cannot reach VLAN 20 while other VLANs can, the routing between those specific VLANs is likely missing or misconfigured. This is the most probable cause given the symptoms. Other options would cause broader connectivity issues.
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Practice all Networking questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Networking. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Networking questions on the 220-1201 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Networking is tested as part of the CompTIA A+ Core 1 220-1201 blueprint. Practicing with targeted Networking questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Networking is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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