Basics of Network - 1 Video Lecture | Crash Course: Electrical Engineering (EE)

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1. What is a network?
Ans. A network is a collection of interconnected devices, such as computers, servers, routers, and switches, that are linked together to share resources and communicate with each other.
2. What is the purpose of a network?
Ans. The purpose of a network is to facilitate communication and resource sharing among devices. It allows users to share files, access the internet, print documents, and communicate through email or instant messaging.
3. What are the different types of networks?
Ans. There are several types of networks, including local area networks (LANs), wide area networks (WANs), metropolitan area networks (MANs), and wireless networks. LANs connect devices within a limited geographical area, while WANs connect devices over large distances. MANs cover a larger area than LANs but smaller than WANs. Wireless networks use radio waves to connect devices without the need for physical cables.
4. What is the role of a router in a network?
Ans. A router is a networking device that connects multiple networks together. It forwards data packets between different networks, determines the best path for data transmission, and provides security by filtering network traffic. Routers also assign IP addresses to devices and can prioritize network traffic based on specific criteria.
5. What is an IP address?
Ans. An IP address is a unique numerical label assigned to each device connected to a network. It serves as the device's identifier and enables communication between devices over an IP-based network, such as the internet. IP addresses can be either IPv4 (32-bit) or IPv6 (128-bit), and they are typically written in the form of four sets of numbers separated by periods (e.g., 192.168.0.1).
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