33.6.3 IPv6 Addressing Quiz: IPv4 vs IPv6 Comparison

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Questions and Answers

What is the address length of IPv4?

32-bit (correct)

256-bit

128-bit

64-bit

Which network class uses the first 16 bits to identify the network?

Class C

Class B (correct)

Class A

Class D

What is the range of addresses in a Class A network?

1 to 63

0 to 255

1 to 255

1 to 126 (correct)

Which IP version provides an inbuilt security feature known as IPSEC?

IPv6 Signup and view all the answers

How many bytes is the header size in IPv6?

40 bytes Signup and view all the answers

Which IP version provides encryption and authentication facilities?

IPv6 Signup and view all the answers

What is the distinguishing feature of a Class C IP address?

The first three bits are set to 1 Signup and view all the answers

Which IP address class is reserved for multicasting applications?

Class D Signup and view all the answers

What distinguishes Class E IP addresses from other classes?

They have the first four bits set to 1 Signup and view all the answers

Which IP address class is commonly used for small networks like local area networks (LANs)?

Class C Signup and view all the answers

What range of IP addresses falls under Class D addresses?

224 to 239 Signup and view all the answers

In Class E IP address, what is the primary purpose for which it is reserved?

For research and development purposes Signup and view all the answers

What is the purpose of subnetting in a network?

To divide a network into smaller groups for efficient IP address allocation Signup and view all the answers

What distinguishes private IP addresses from public IP addresses?

Private IP addresses are reserved for private networks and not routable on the public Internet. Signup and view all the answers

What does VLSM (Variable Length Subnet Masking) enable in a network?

It allows for using different subnet masks within the same network address space. Signup and view all the answers

What is the primary function of DHCP in a network?

To provide dynamic allocation of IP addresses, subnet masks, and other configuration parameters to devices Signup and view all the answers

How do subnet masks contribute to IP address division?

By assigning host bits as 1s and network bits as 0s Signup and view all the answers

Which mechanism allows for efficient utilization of IP addresses by allocating larger subnets to segments with more hosts?

VLSM (Variable Length Subnet Masking) Signup and view all the answers

Study Notes

IP Addresses

IP addresses are mathematically produced and allocated by the Internet Assigned Numbers Authority (IANA)
There are two versions of IP addresses: IPv4 and IPv6

IPv4

Has a 32-bit address length
Supports manual and DHCP address configuration
Can generate 4.29×10^9 address space
Security feature is dependent on application
Address representation is in decimal
No encryption and authentication facility is provided
Header size is 20-60 bytes

IPv6

Has a 128-bit address length
Supports auto and renumbering address configuration
Can generate 3.4×10^38 address space
Has inbuilt security feature IPSEC
Address representation is in hexadecimal
Encryption and authentication are provided
Header size is 40 bytes fixed

IP Address Classes

Class A: used for large networks, first 8 bits identify the network, and the remaining 24 bits for the host
Address range: 1 to 126
Class B: used for medium-sized networks, first 16 bits identify the network, and the remaining 16 bits for the host
Address range: 128 to 191
Class C: used for small networks, first 24 bits identify the network, and the remaining 8 bits for the host
Address range: 192 to 223
Class D: used for multicasting applications, first 4 bits set to 1 and the fourth bit set to 0
Address range: 224 to 239
Class E: reserved for research and development purposes, first 4 bits set to 1
Address range: 240 to 255

Private and Public IP Addresses

Private IP addresses are reserved for use within a private network and are not routable on the public Internet
Public IP addresses are assigned by Internet authorities and are routable on the Internet

Subnetting and VLSM

Subnetting is a technique that allows for dividing an IP address into smaller subnets
VLSM (Variable Length Subnet Masking) is a technique that allows for using different subnet masks within the same network address space

DHCP Server

Dynamic Host Configuration Protocol is an application layer protocol that provides:
- Subnet mask
- Router address
- DNS address
- Vendor class identifier

Subnet Mask

A subnet mask is a 32-bit number created by setting host bits to all 0s and setting network bits to all 1s
Used to divide an IP address into two parts: one identifies the host, and the other identifies the network

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Description

Learn about the differences between IPv4 and IPv6 addressing, including address lengths, configuration support, address space, security features, and encryption/authentication capabilities.