Question 1

What is network hardware and why is it important in computer networks?

Accepted Answer

Network hardware refers to the physical devices required to establish, maintain, and manage a computer network. This includes routers, switches, modems, and network interface cards (NICs). These components are crucial because they facilitate communication between devices, enabling data exchange and connectivity across the network. Understanding network hardware is essential for students studying the Cambridge IGCSE Computer Science curriculum as it forms the backbone of any network infrastructure.

Question 2

How does a router differ from a switch in network hardware?

Accepted Answer

A router is a network device that connects different networks together and routes data packets between them, typically between a local network and the internet. It assigns IP addresses and manages traffic to ensure data reaches its correct destination. A switch, on the other hand, connects devices within the same network, allowing them to communicate directly. It uses MAC addresses to forward data to the correct device. Understanding these differences is key for Cambridge IGCSE students to grasp how data flows in a network.

Question 3

What role does a modem play in network hardware?

Accepted Answer

A modem is a network hardware device that modulates and demodulates signals for data transmission over telephone lines, cable systems, or satellite connections. It converts digital data from a computer into analog signals for transmission and vice versa. This process is essential for connecting a local network to the internet. For Cambridge IGCSE Computer Science students, understanding the modem's role helps in comprehending how internet connectivity is established and maintained.

Question 4

Why are Network Interface Cards (NICs) important in a computer network?

Accepted Answer

Network Interface Cards (NICs) are crucial components of network hardware that allow computers to connect to a network. They provide the physical interface for network communication, converting data into a format suitable for transmission over the network. NICs can be wired or wireless, depending on the type of network connection. For Cambridge IGCSE students, understanding NICs is important as they are fundamental to enabling network connectivity and communication between devices.

Question 5

What is the function of a network switch in managing data traffic?

Accepted Answer

A network switch is a device that connects multiple devices within a local area network (LAN) and uses MAC addresses to forward data to the correct destination. It manages data traffic efficiently by creating a network segment for each connected device, reducing collisions and improving overall network performance. For Cambridge IGCSE Computer Science students, learning about switches is vital for understanding how data is managed and optimized within a network, ensuring smooth and efficient communication.

Network Hardware

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