Data Communication & Computer Networks Lab Manual

Computer Network Components

• The router is responsible for ensuring that data is transferred to the correct destination.
• A protocol in a computer network is responsible for defining the rules and structure of data exchanged over the network.

Network Interface Card (NIC)

• A wireless NIC uses an antenna and radio wave technology for connection.

Resource Sharing

• The primary purpose of resource sharing in a computer network is to share files, printers, and other resources between devices.

Server-Client Model

• The primary use of computer networking in the server-client model is to provide services to clients from a centralized server.

Computer Network Purpose

• The primary purpose of a computer network is to facilitate communication and data exchange between devices.

Subnetting

• The Vint Cerf experiment introduces the concept of Subnetting.

Wireshark

• The primary purpose of Wireshark is to capture and analyze network traffic.

Network Connections

• Computer networks connect devices, such as computers, servers, printers, and other hardware.

Ad Hoc Wireless Network

• The netsh wlan set hostednetwork command is used to set up an Ad Hoc Wireless Network in Windows 8/10.

Basic Network Elements

• The basic elements of a network include devices, transmission media, and protocols.

Server Function

• The primary function of servers in a network is to provide and receive services from other peers.

Workgroup Network

• The peer component of a computer network is responsible for providing and receiving services from other peers in a workgroup network.

Transmission Media

• Transmission media in a computer network refer to the physical paths through which data is transmitted, such as cables, Wi-Fi, and fiber optics.

Client Function

• The primary function of clients in a network is to request and receive services from servers.

Router Function

• The main purpose of a router is to connect multiple networks together and facilitate communication between them.

Edge Routers

• Edge routers are responsible for routing traffic between external networks and the internal network.

Routing Protocol

• Routers use the Border Gateway Protocol (BGP) to route packets efficiently when connecting to external networks.

Home and Small Office Routers

• SOHO (Small Office/Home Office) routers are mostly used in homes and small offices to create wired local area networks (LANs).

Routing Table

• Remote networks are typically added to a routing table using static routing or dynamic routing protocols.