Serum Institute of India Desktop Support Engineer Interview Questions, Process, and Tips

Layer 3 in OSI model is the network layer responsible for routing and forwarding data packets.

• Responsible for logical addressing and routing of data packets

• Determines the best path for data to travel through a network

• Examples include IP addresses and routers

A router is a networking device that forwards data packets between computer networks. It is used to connect multiple devices to a network and route data to the appropriate destination.

• Routers operate at the network layer of the OSI model.

• They use IP addresses to determine the best path for data packets to reach their destination.

• Routers can connect different types of networks, such as LANs and WANs.

• Examples of routers ...read more

A network is a collection of computers, servers, mainframes, network devices, and other devices connected to one another to share data and resources.

• A network allows devices to communicate with each other, share resources, and access the internet.

• Networks can be wired or wireless, with examples including LANs, WANs, and the internet.

• Networks can be private (intranet) or public (internet).

Types of networks include LAN, WAN, MAN, WLAN, and VPN.

• LAN (Local Area Network) - limited to a small geographic area like a single building or campus

• WAN (Wide Area Network) - covers a large geographic area like a city or country

• MAN (Metropolitan Area Network) - spans a city or metropolitan area

• WLAN (Wireless Local Area Network) - uses wireless technology to connect devices within a limited area

• VPN (Virtual Private Netw...read more