Lesson 4.9.4.5

4.9.4.5 IP standards and public and private addresses Quiz: AQA Computer Science, Unit 9

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.9.4.5, IP standards and public and private addresses: 20 multiple choice questions for the AQA Computer Science (7517), Unit 9: Fundamentals of communication and networking, written with Revision Ninja.

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The 20 questions

  1. How many bits long is an IPv6 address?

    • 32
    • 128
    • 256
    • 64

  2. Which two IP standards are currently in use?

    • IPv4 and IPv6
    • IPv5 and IPv6
    • IPv4 and IPX
    • IPv1 and IPv2

  3. What was the main reason for introducing the IPv6 standard?

    • Built-in web servers
    • Simpler routing protocols
    • Faster transfer speeds
    • IPv4 address exhaustion

  4. Roughly how many unique addresses does IPv4 support in total?

    • 65,536
    • 3.4 trillion
    • 128 billion
    • 4.3 billion

  5. Which of the following IPv4 address blocks is designated for private networks?

    • 8.8.8.0/24
    • 200.100.0.0/16
    • 192.168.0.0/16
    • 1.1.1.0/24

  6. Which address range is the private class A block in IPv4?

    • 11.0.0.0 to 11.255.255.255
    • 126.0.0.0 to 126.255.255.255
    • 10.0.0.0 to 10.255.255.255
    • 12.0.0.0 to 12.255.255.255

  7. Where can non-routable IP addresses be used for data transmission?

    • Public internet only
    • Global DNS servers
    • Private networks only
    • WAN backbones only

  8. Which address could be used as a private address inside a home network?

    • 8.8.8.8
    • 203.0.113.5
    • 172.32.0.1
    • 192.168.1.25

  9. Which address is a private address?

    • 172.32.1.5
    • 172.200.10.10
    • 172.20.1.5
    • 172.2.2.2

  10. Which IPv4 range is the private block for medium-sized networks in the 172 range?

    • 172.64.0.0 to 172.127.255.255
    • 172.16.0.0 to 172.31.255.255
    • 172.0.0.0 to 172.15.255.255
    • 172.32.0.0 to 172.63.255.255

  11. In what format are IPv6 addresses standardly written?

    • Dotted decimal
    • Base64 text
    • Binary with slashes
    • Hexadecimal with colons

  12. How many times more addresses does IPv6 provide than IPv4?

    • 2^32 times more
    • 128 times more
    • 2^96 times more
    • 2^64 times more

  13. Which type of IP address cannot be routed across the public internet?

    • Static IP address
    • Dynamic IP address
    • Public IP address
    • Private IP address

  14. Why was IPv6 introduced to replace the IPv4 addressing system?

    • Address exhaustion
    • Better encryption
    • Simpler routing
    • Faster transmission

  15. What action do public internet routers take on receiving a private IP address?

    • Drop packet
    • Forward packet
    • Encrypt packet
    • Broadcast packet

  16. What property allows private IP addresses to be used in millions of home networks simultaneously?

    • Automatic encryption
    • Public routability
    • Address reusability
    • MAC address mapping

  17. Which technology allows multiple private IP devices to share a single public IP address?

    • NAT
    • DNS
    • MAC filtering
    • DHCP

  18. Which two addresses are both private?

    • 172.40.1.1 and 192.168.5.5
    • 1.1.1.1 and 172.16.4.4
    • 8.8.8.8 and 10.1.1.1
    • 10.1.1.1 and 192.168.0.5

  19. How many bits are used to form a standard IPv4 address?

    • 64 bits
    • 16 bits
    • 32 bits
    • 128 bits

  20. Which of these is a valid IPv6 address?

    • 192.168.1.1
    • 2001:db8::1
    • AA-BB-CC-DD-EE-FF
    • 10.0.0.256

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