Hardware

Question 1

What is a Network Interface Controller (NIC)?

Answer 1

An internal piece of hardware that allows a device to connect to a network, built into the motherboard for wired and wireless connections.

NICs were previously separate cards but are now typically integrated into devices.

Question 2

What is the primary function of a switch in a LAN?

Answer 2

To connect devices on a LAN and transmit data to the correct MAC address.

Switches receive data frames from one device and send them to another device on the network.

Question 3

What role do routers play in networking?

Answer 3

Routers transmit data between networks and connect a LAN to the Internet.

They direct data in units called packets to their destination.

Question 4

What types of cables are commonly used for Ethernet connections?

Answer 4

CAT 5e, CAT 6, Coaxial, and Fibre-Optic cables.

CAT 5e and CAT 6 are twisted pair cables, while coaxial cables consist of a single copper wire with insulation.

Question 5

What is the main advantage of fibre optic cables?

Answer 5

They transmit data as light, are high performance, and do not suffer interference, allowing for long-distance transmission without loss of signal quality.

Fibre optic cables are more expensive due to their advanced technology.

Question 6

What technology do wireless networks use to transmit data?

Answer 6

Radio waves.

Wireless networks require a Wireless Access Point (WAP) for devices to connect wirelessly.

Question 7

What distinguishes a Wireless Access Point (WAP) from a hotspot?

Answer 7

A WAP is a device that allows wireless connections, while a hotspot is a location where devices can connect to a WAP.

Hotspots may be public locations like cafes or libraries.

Question 8

Fill in the blank: A __________ connects a LAN to the Internet and directs data packets.

Answer 8

router