Networking - IP Addressing Flashcards

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Questions and Answers

What are IPv4 addresses divided into?

Class A, Class B, Class C, Class D, Class E (correct)

Class A, Class B

Class A, Class B, Class C

Class A, Class C, Class D

What is the format of each class of IP address?

Reserved bits, network bits, host bits

What is the format of Class A addresses?

0 // 0000000 // 00000000 00000000 00000000

What is the IP address range for Class A?

0.0.0.0 to 127.255.255.255 Signup and view all the answers

What is the maximum number of addresses that can be assigned to hosts in a Class A network?

16,777,214 Signup and view all the answers

How many Class A networks can be assigned?

128 Signup and view all the answers

What is an example of a Class A network?

103.0.0.0 Signup and view all the answers

What is the format of Class B addresses?

1 // 0 // 00000000 00000000 // 00000000 00000000 Signup and view all the answers

What is the IP address range for Class B?

128.0.0.0 to 191.255.255.255 Signup and view all the answers

What is the maximum number of addresses that can be assigned to hosts in a Class B network?

65,534 Signup and view all the answers

How many Class B networks can be assigned?

16,384 Signup and view all the answers

What is the format of Class C addresses?

1 // 1 // 0 // 00000000 00000000 00000 // 00000000 Signup and view all the answers

What is the IP address range for Class C?

192.0.0.0 to 223.255.255.255 Signup and view all the answers

What is the maximum number of addresses that can be assigned to hosts in a Class C network?

254 Signup and view all the answers

How many Class C networks can be assigned?

2,097,152 Signup and view all the answers

What is the format of Class D addresses?

1 // 1 // 1 // 0 // 00000000 00000000 00000000 0000 Signup and view all the answers

What is the IP address range for Class D?

224.0.0.0 to 239.255.255.255 Signup and view all the answers

Study Notes

IPv4 Addresses Overview

IPv4 addresses are categorized into five classes: A, B, C, D, and E.

IP Address Structure

Each class consists of three sections: reserved bits, network bits, and host bits.

Class A Format

Structure: 1 reserved bit (always 0) + 7 network bits + 24 host bits.

Class A Address Range

Valid IP addresses range from 0.0.0.0 to 127.255.255.255.

Class A Host Capacity

Maximum assignable IPs for hosts: 2^24 - 2 = 16,777,214.

Class A Network Capacity

Total Class A networks: 2^7 = 128.

Example Class A Network

Network Address: 103.0.0.0
Host IP Range: 103.0.0.1 to 103.255.255.254
Broadcast Address: 103.255.255.255.

Class B Format

Structure: 1 reserved bit (1) + 1 reserved bit (0) + 14 network bits + 16 host bits.

Class B Address Range

Valid IP addresses range from 128.0.0.0 to 191.255.255.255.

Class B Host Capacity

Maximum assignable IPs for hosts: 2^16 - 2 = 65,534.

Class B Network Capacity

Total Class B networks: 2^14 = 16,384.
Suitable for medium to large networks, e.g., large college campuses with ranges like 145.108.0.0 to 145.108.255.255.

Class C Format

Structure: 1 reserved bit (1) + 1 reserved bit (1) + 1 reserved bit (0) + 21 network bits + 8 host bits.

Class C Address Range

Valid IP addresses range from 192.0.0.0 to 223.255.255.255.

Class C Host Capacity

Maximum assignable IPs for hosts: 2^8 - 2 = 254.

Class C Network Capacity

Total Class C networks: 2^21 = 2,097,152.
Typically used for small networks, like small businesses, e.g., 202.17.5.0 to 202.17.5.25.

Class D Format

Structure: 1 reserved bit (1) + 1 reserved bit (1) + 1 reserved bit (1) + 1 reserved bit (0) + 28 multicast bits.

Class D Address Range

Valid IP addresses range from 224.0.0.0 to 239.255.255.255.

Class D Functionality

Designed for multicast addressing, allowing simultaneous message delivery to multiple hosts.
Classes A, B, and C are used for unicast addressing, targeting individual hosts.

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Description

Test your knowledge on classful IP addressing with these flashcards. Each card covers key concepts such as the IPv4 addressing classes and address format. Perfect for networking students looking to solidify their understanding of IP structures.