CompTIA Tech+ Practice Questions: Networking

32 free, exam-style CompTIA Tech+ (FC0-U71) practice questions covering Networking. Each question shows the correct answer and a clear explanation. Ready for the real thing? Take the full timed quiz below.

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Q1. What does 'HTTP' stand for?

Explanation: HTTP stands for HyperText Transfer Protocol, used for web communication. Learn more.

Q2. Which of the following is a common wireless networking standard?

Explanation: Bluetooth is a wireless standard for short-range communication. Learn more.

Q3. What is the primary purpose of an IP address?

Explanation: An IP address uniquely identifies a device on a network. Learn more.

Q4. What is the function of a DNS server?

Explanation: DNS (Domain Name System) converts human-readable domain names (e.g., google.com) to IP addresses. Learn more.

Q5. What is the primary function of a router?

Explanation: Routers direct traffic between different networks (e.g., home network and the internet). Learn more.

Q6. Which protocol is used to send email?

Explanation: SMTP (Simple Mail Transfer Protocol) is used for sending email. Learn more.

Q7. What does 'IoT' stand for?

Explanation: IoT refers to network-connected physical devices like smart appliances. Learn more.

Q8. Which port number is typically used for HTTPS?

Explanation: HTTPS uses port 443 by default for secure web traffic. Learn more.

Q9. What is the main advantage of peer-to-peer (P2P) networking?

Explanation: P2P networks allow devices to communicate directly without a central server. Learn more.

Q10. What is the purpose of an IP config command?

Explanation: ipconfig shows current network configuration in Windows. Learn more.

Q11. Which of these is a private IP address range?

Explanation: 192.168.x.x is reserved for private networks. Learn more.

Q12. What is the purpose of a subnet mask?

Explanation: Subnet masks distinguish network and host portions of IP addresses. Learn more.

Q13. Which protocol is used for file transfers?

Explanation: FTP (File Transfer Protocol) is specialized for file transfers. Learn more.

Q14. What is the purpose of a MAC address?

Explanation: MAC addresses are hardware identifiers for network devices. Learn more.

Q15. Which of these is a common network topology?

Explanation: Common topologies include star, bus, ring, and mesh. Learn more.

Q16. What is the purpose of a proxy server?

Explanation: Proxy servers intermediate between clients and other servers. Learn more.

Q17. Which of these is a characteristic of IPv6?

Explanation: IPv6 uses 128-bit addresses to solve IPv4 limitations. Learn more.

Q18. What does 'IoT' stand for?

Explanation: IoT refers to network-connected physical devices like smart appliances. Learn more.

Q19. Which port number is typically used for HTTPS?

Explanation: HTTPS uses port 443 by default for secure web traffic. Learn more.

Q20. What is the main advantage of peer-to-peer (P2P) networking?

Explanation: P2P networks allow devices to communicate directly without a central server. Learn more.

Q21. What is the purpose of an IP config command?

Explanation: ipconfig shows current network configuration in Windows. Learn more.

Q22. Which of these is a private IP address range?

Explanation: 192.168.x.x is reserved for private networks. Learn more.

Q23. What is the purpose of a subnet mask?

Explanation: Subnet masks distinguish network and host portions of IP addresses. Learn more.

Q24. Which protocol is used for file transfers?

Explanation: FTP (File Transfer Protocol) is specialized for file transfers. Learn more.

Q25. What is the purpose of a MAC address?

Explanation: MAC addresses are hardware identifiers for network devices. Learn more.

Q26. Which of these is a common network topology?

Explanation: Common topologies include star, bus, ring, and mesh. Learn more.

Q27. What is the purpose of a proxy server?

Explanation: Proxy servers intermediate between clients and other servers. Learn more.

Q28. Which of these is a characteristic of IPv6?

Explanation: IPv6 uses 128-bit addresses to solve IPv4 limitations. Learn more.

Q29. Which network device connects a home network to an Internet service provider?

Explanation: A router forwards traffic between the local network and external networks such as the Internet. Learn more.

Q30. Which address type is used to identify a device on an IP network?

Explanation: IP addresses identify hosts and networks for packet delivery. Learn more.

Q31. Which unit is commonly used to describe network speed?

Explanation: Network throughput is commonly measured in bits per second, such as Mbps or Gbps. Learn more.

Q32. Which cable type is commonly used to connect a computer to a wired LAN?

Explanation: Ethernet cables connect devices to wired local area networks. Learn more.

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