Chapter 1
Mobile Devices
Course: 220 1201 Comptia A Exam Core 1
Subject: 220 1201 Comptia Exam Core 1
Chapter: Networking
Overview: Setting up a small office/home office (SOHO) network involves configuring both wired and wireless connectivity, ensuring that devices communicate effectively within the network and with the internet. Key to this process is understanding Internet Protocol (IP) addressing, which allows devices to locate and communicate with each other.
1. Internet Protocol (IP) Addressing
What is IP Addressing?
IP addressing is the method used to identify devices on a network. Each device on a network has a unique IP address, which allows it to send and receive data from other devices.
IP addresses come in two main versions: IPv4 and IPv6.
IPv4 (Internet Protocol version 4):
Format: IPv4 addresses are 32-bit numbers, typically represented as four decimal numbers separated by periods (e.g., 192.168.1.1). Private Addresses: These addresses are used within a local network and are not routable on the internet. They help conserve the limited number of IPv4 addresses available.
Examples: 192.168.0.0 to 192.168.255.255, 10.0.0.0 to 10.255.255.255, and 172.16.0.0 to 172.31.255.255. Use Case: In a home or office network, devices like computers, printers, and smartphones use private IP addresses to communicate internally. Example: A router might assign 192.168.1.100 to a laptop in a home network.