A company has a LAN (local area network).

Mark scheme

Marking points from the official mark scheme (May/June 2023). The mark or mark type is shown in brackets.

1. [2] 1 mark each to max 2 • Allows the sharing of files/data // Allows communication between the devices • Allows the sharing of resources e.g. hardware / software (applications) • Allows central management // by example, backup, security, etc.
2. [2] 1 mark each to max 2 • Covers a small geographical area • The infrastructure is privately owned // not controlled by external organisations
3. [2] 1 mark each to max 2 • Each computer directly connected only to the server • ... all components correctly labelled [Diagram showing a central server with four computers connected to it]
4. [3] 1 mark each to max 3 • A protocol (suite) • For data transmission over standard / universal wired / cabled network connections • Uses Carrier Sense Multiple Access / Collision Detection (CSMA/CD) • Data is transmitted in frames • ... each frame has a source and destination (IP/MAC) address • ... and error checking data (so damaged frames can be resent)
5. [2] 1 mark each • The server performs minimal / some processing for the client • The clients also do most of their own processing/work independently // most of the resources are installed locally