Data Communication & Computer Networks Lab Manual
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Questions and Answers

Which component of a computer network is responsible for ensuring that data is transferred to the correct destination?

  • Receiver
  • Message
  • NIC (Network Interface Card) (correct)
  • Transmission media

    • What is the main function of a protocol in a computer network?

  • To store the information centrally
  • To enable communication and data sharing between devices (correct)
  • To transfer data using radio waves
  • To establish a wireless connection

    • Which type of NIC uses an antenna and radio wave technology for connection?

  • Server
  • Wired NIC
  • Receiver
  • Wireless NIC (correct)

    • In a computer network, what is the purpose of resource sharing?

    <p>To share programs, printers, and data among users without physical location requirement</p> Signup and view all the answers

    What is the primary use of computer networking in the server-client model?

    <p>To store information centrally and allow remote access by clients</p> Signup and view all the answers

    What is the purpose of a computer network?

    <p>To send and receive data stored in other devices over the network</p> Signup and view all the answers

    Which experiment introduces the concept of Subnetting?

    <p>To understand the concept of Subnetting</p> Signup and view all the answers

    What is the primary purpose of Wireshark?

    <p>To analyze DNS, HTTP, and TCP</p> Signup and view all the answers

    What do computer networks connect?

    <p>Computers, printers, scanners, fax machines, etc.</p> Signup and view all the answers

    Which command is used to set up an Ad Hoc Wireless Network in Windows 8/10?

    <p>netsh wlan set hostednetwork mode=allow ssid=YourSSID key=YourPassphrase</p> Signup and view all the answers

    What are the basic elements of a network, as described in the text?

    <p>Hardware, software, protocols, and data transfer</p> Signup and view all the answers

    What is the primary function of servers in a network, according to the text?

    <p>Managing the resources of the network</p> Signup and view all the answers

    Which component of a computer network is responsible for providing and receiving services from other peers in a workgroup network?

    <p>Peers</p> Signup and view all the answers

    What are transmission media in a computer network, based on the text?

    <p>Channels through which data is transferred from one device to another</p> Signup and view all the answers

    In a computer network, what is the primary function of clients according to the provided information?

    <p>Requesting and receiving service from the servers to access and use network resources</p> Signup and view all the answers

    What is the main purpose of a router?

    <p>To connect multiple networks and forward packets from one network to the next</p> Signup and view all the answers

    What is the role of edge routers in a network?

    <p>To keep the network communicating smoothly with other networks</p> Signup and view all the answers

    What protocol do routers use to route packets efficiently when connecting to external networks?

    <p>Open Shortest Path First (OSPF) protocol</p> Signup and view all the answers

    What type of routers are mostly used in homes and small offices to create wired local area networks (LANs)?

    <p>Wired and wireless routers</p> Signup and view all the answers

    In a routing table, how are remote networks typically added?

    <p>By implementing a dynamic routing protocol</p> Signup and view all the answers

    Study Notes

    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.

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    Description

    This lab manual covers a range of experiments related to computer networks and data communication, including topics like network or communication devices, IP addressing, troubleshooting, subnets, and Cisco Packet Tracer.

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