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Introduction to Packet-Switching

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Questions and Answers

What are the benefits of computer networks?

Easy access and sharing of information, sharing of expensive devices and network resources, modern technologies.

What are the hardware components of a data communication system?

Shared channel (transmission media), NIC (Network Interface Card), and devices (end devices)

What is a Network Interface Card (NIC)?

The hardware that directly accesses the network.

What is an end device in a network?

An end device is where a message originates from or where it is received. Signup and view all the answers

Name two types of shared channels used in data communication systems.

Wired (cables) and Wireless (Air) Signup and view all the answers

What are the two types of wired shared channels?

Metallic wires and Fiber optics Signup and view all the answers

What is the purpose of a repeater in a network?

To amplify and retransmit signals to extend the network's reach. Signup and view all the answers

How does a Network Interface Card (NIC) facilitate network communication?

NIC directly accesses the network, enabling the device to send and receive data. Signup and view all the answers

What are the benefits of using wireless shared channels in a network?

Flexibility, mobility, and reduced need for physical cabling. Signup and view all the answers

Explain the role of end devices in a network.

End devices are where messages originate or are received, playing a crucial role in data transmission. Signup and view all the answers