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Multiple Choice Questions on IP Addresses: High School Computer Science

Hey there! 👋 Getting ready for your Computer Science exam? IP addresses can seem tricky, but this guide + quiz will help you ace it! Let's dive in and test your knowledge! 💻
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amber412 Dec 30, 2025

📚 Quick Study Guide

  • 🌐 Definition: An IP address (Internet Protocol address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
  • 🔢 IPv4: Uses a 32-bit address space, represented in dotted decimal notation (e.g., 192.168.1.1).
  • 🧅 IPv6: Uses a 128-bit address space, represented in hexadecimal notation (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334).
  • 🔑 Classes: IPv4 addresses are divided into classes (A, B, C, D, E) based on the first octet, determining the network size and host addresses.
  • 📡 Subnet Mask: Used to divide an IP address into network and host addresses. (e.g., 255.255.255.0)
  • 📝 Private IP Addresses: These are IP addresses reserved for internal networks and are not routable on the public internet. Examples include:
    • 10.0.0.0 – 10.255.255.255
    • 172.16.0.0 – 172.31.255.255
    • 192.168.0.0 – 192.168.255.255

🧪 Practice Quiz

  1. Which of the following is a valid IPv4 address?
    1. A. 300.168.1.1
    2. B. 192.168.1.300
    3. C. 192.168.1.1
    4. D. 192.168.1.-1
  2. Which class does the IP address 172.20.10.5 belong to?
    1. A. Class A
    2. B. Class B
    3. C. Class C
    4. D. Class D
  3. What is the purpose of a subnet mask?
    1. A. To encrypt data
    2. B. To identify the network and host portions of an IP address
    3. C. To block unwanted traffic
    4. D. To assign IP addresses automatically
  4. Which of the following is a valid IPv6 address?
    1. A. 192.168.1.1
    2. B. 2001:db8:85a3:0:0:8a2e:370:7334
    3. C. 256.256.256.256
    4. D. 10.0.0.256
  5. Which of the following IP addresses is a private IP address?
    1. A. 192.168.1.10
    2. B. 172.10.0.1
    3. C. 8.8.8.8
    4. D. 203.0.113.45
  6. What is the main difference between IPv4 and IPv6?
    1. A. IPv6 uses binary numbers, while IPv4 uses decimal numbers.
    2. B. IPv6 has a larger address space than IPv4.
    3. C. IPv4 is newer than IPv6.
    4. D. IPv4 supports more devices than IPv6.
  7. What does the acronym 'IP' stand for in IP address?
    1. A. Internet Processor
    2. B. Internal Protocol
    3. C. Internet Protocol
    4. D. Interconnected Program
Click to see Answers
  1. C
  2. B
  3. B
  4. B
  5. A
  6. B
  7. C

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