Wired Networks | 3.2 | OCR GCSE Computer Science | J277

12 flashcards

How do wired networks transfer data?

Across a physical connection using transmission media (e.g. ethernet cables).

What hardware is required within each device for this to occur?

A Network Interface Card

Ethernet cables

Transmission media used on LANs to transfer data at high speeds over a short distance. These speeds can go up to 10 Gbps.

When would ethernet cables be used?

When connecting computers to a switch or router.

Advantage of wired networks

There is faster data transfer rate between networks, especially on LANs using ethernet cables.

Advantage - What is the result of a lower latency?

There is less delay when transferring data.

Advantage - Why are wired networks more reliable?

There is less interference and a more stable connection.

Advantage - Why is the security on wired networks better?

Because for data to be intercepted, physical access is required, unlike in wireless networks.

Disadvantage - Why do wired networks restrict movement?

As devices are physically limited by cables.

Disadvantage - Why can wired networks be dangerous in busy environments?

It creates trip hazards.

Disadvantage (setting up)

Setting up wired connections can be difficult, time-consuming and requires constant maintenance

Disadvantage (setting up costs)

Buying additional hardware such as a switch or hub, plus the cables, can be expensive.