IP Addressing Fundamentals MCQ Test: IPv4, IPv6 and Subnetting

Master the fundamentals of IP addressing with this comprehensive MCQ test. Explore IPv4, IPv6 and subnetting concepts to enhance your networking knowledge. Perfect for IT learners and professionals preparing for exams!

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  • 📋 Total Questions: 30
  • ⏳ Time Limit: 30 minutes
  • 📝 Marking Scheme: +1 for each correct answer. No negative marking.
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  • 🔍 Carefully read all questions before submitting your answers.
  • 🎯 Best of Luck! Stay focused and do your best. 🚀

Time Left (min): 00:00

1. What is the bit length of an IPv4 address?

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

2. Which class of IPv4 addresses is used for multicast communication?

  • Class A
  • Class B
  • Class D
  • Class E

3. What is the range of the first octet for Class C IPv4 addresses?

  • 1-126
  • 128-191
  • 192-223
  • 224-239

4. What is the default subnet mask for a Class B IPv4 address?

  • 255.0.0.0
  • 255.255.0.0
  • 255.255.255.0
  • 255.255.255.255

5. Which IPv6 address type is used for communication within a single node?

  • Global unicast
  • Link-local
  • Loopback
  • Multicast

6. What does CIDR stand for in IP addressing?

  • Classless Inter-Domain Routing
  • Communication Inter-Domain Routing
  • Clustered IP Distribution Range
  • Classful Internet Design Rules

7. How many bits are there in an IPv6 address?

  • 32 bits
  • 64 bits
  • 96 bits
  • 128 bits

8. The subnet mask 255.255.255.0 is equivalent to which CIDR notation?

  • /8
  • /16
  • /24
  • /32

9. What is the primary purpose of subnetting?

  • Increase network speed
  • Conserve IP addresses
  • Simplify routing tables
  • Ensure data integrity

10. Which of the following is not a valid IPv4 address?

  • 192.168.0.1
  • 10.0.0.256
  • 172.16.254.1
  • 127.0.0.1

11. The first 64 bits of an IPv6 address typically represent the:

  • Host ID
  • Network prefix
  • Subnet ID
  • Multicast group

12. Which protocol is used to assign IP addresses dynamically?

  • ARP
  • ICMP
  • DHCP
  • DNS

13. What type of IPv6 address is FE80::/10?

  • Global unicast
  • Link-local
  • Multicast
  • Anycast

14. The address 127.0.0.1 is used for:

  • Broadcasting
  • Multicasting
  • Loopback testing
  • Assigning IPs dynamically

15. Which IPv4 address is reserved for local host communication?

  • 255.255.255.255
  • 127.0.0.1
  • 192.168.1.1
  • 0.0.0.0

16. What is the main difference between IPv4 and IPv6?

  • IPv6 has a smaller address space
  • IPv6 includes security features by default
  • IPv4 supports only private addressing
  • IPv6 is connection-oriented

17. Which type of address is automatically assigned to a device in the absence of DHCP in IPv4?

  • Broadcast address
  • Multicast address
  • APIPA address
  • Loopback address

18. How many subnets can be created with a /26 subnet mask?

  • 2
  • 4
  • 8
  • 64

19. What is the hexadecimal equivalent of the IPv4 address 192.168.1.1?

  • C0.A8.01.01
  • C0:A8:1:1
  • 192.168.1.1
  • C.A:1:1

20. What does the term "broadcast address" mean in IPv4?

  • The address used to send data to all devices on a network
  • The default gateway address
  • The first address in a subnet
  • An address used for multicast communication

21. Which address type in IPv6 starts with "FF"?

  • Unicast
  • Multicast
  • Link-local
  • Anycast

22. What is the valid range for IPv4 private addresses in Class A?

  • 1.0.0.0 - 127.255.255.255
  • 10.0.0.0 - 10.255.255.255
  • 192.168.0.0 - 192.168.255.255
  • 172.16.0.0 - 172.31.255.255

23. What is the main purpose of NAT (Network Address Translation)?

  • Encrypt communication
  • Translate private IP addresses to public IP addresses
  • Assign IP addresses dynamically
  • Create subnets within a network

24. The IPv6 address ::1 is equivalent to which IPv4 address?

  • 192.168.1.1
  • 127.0.0.1
  • 0.0.0.0
  • 255.255.255.255

25. How many addresses are available in a /29 subnet?

  • 4
  • 6
  • 8
  • 16

26. Which of the following is an example of a global unicast IPv6 address?

  • FE80::1
  • FF02::1
  • 2001:0db8::1
  • ::1

27. Which class of IPv4 addresses has the most hosts per network?

  • Class A
  • Class B
  • Class C
  • Class D

28. What is the primary benefit of IPv6 over IPv4?

  • Enhanced security
  • Increased address space
  • Better compatibility with older devices
  • Simplified routing protocols

29. How many hexadecimal blocks are present in an IPv6 address?

  • 4
  • 6
  • 8
  • 16

30. The subnet mask 255.255.255.128 corresponds to which CIDR prefix?

  • /24
  • /25
  • /26
  • /27

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