Question 1 (SO 1, AC 2)

Identify the level of access to LAN computer network for the following categories of people;
User
Operator
Administrator
Question 2 (SO 1, AC 3)
Describe the following methods of controlling access:
Personal identification
Directory
File
• Temporal
Location
Question 3 (SO 1, AC 4)
Explain the purpose of an access audit trail with respect to network. the management of access to a local area computer
Question 4 (SO 2, AC 1, AC 2, AC 3)
1. Identify and describe 4 factors that affects response times on LAN.
11. Explain the importance of analysing collected data when assessing network performance issues.
111. Explain how diagnostic tools are used to collect data.
IV. Identify and describe ways of improving the performance of LAN computer networks.
Question 5 (SO 4, AC 1, AC 2)
1. Identify the different types of viruses that can affect a LAN computer network.
11. Explain the symptoms of a computer network affected by a virus.
Identify and describe methods of preventing, detecting and eradicating viruses.

Question 1:

- User: Typically has the lowest level of access, only able to perform basic functions on the LAN computer network.
- Operator: Has more access than a user, able to perform maintenance tasks and manage resources on the network.
- Administrator: Has the highest level of access, able to make significant changes to the network configuration and settings.

Question 2:
- Personal identification: Requires users to input a unique identifier such as a username and password to access the network.
- Directory: Controls access based on the user's role or group membership within the network.
- File: Controls access to specific files or folders based on user permissions.
- Temporal: Limits access based on specific time frames.
- Location: Controls access based on the physical location of the user.

Question 3:
The purpose of an access audit trail in network management is to track and monitor user activity on the LAN computer network. This helps in identifying any unauthorized access attempts, monitoring system usage, and ensuring compliance with security policies and regulations.

Question 4:
- Factors affecting response times on LAN: Network congestion, bandwidth limitations, hardware limitations, and software issues.
- Importance of analyzing collected data: Helps in identifying performance bottlenecks, troubleshooting network issues, and optimizing network performance.
- Diagnostic tools for collecting data: Tools like packet analyzers, network monitoring software, and performance testing tools.
- Ways of improving LAN performance: Upgrading hardware, optimizing network settings, implementing traffic management techniques, and regular maintenance.

Question 5:
- Types of viruses affecting LAN: Worms, Trojans, ransomware, and spyware.
- Symptoms of a virus-infected network: Slow network performance, unusual system crashes, pop-up ads, and unauthorized access.
- Methods of preventing, detecting, and eradicating viruses: Installing antivirus software, keeping systems updated, scanning for malware regularly, and educating users about safe browsing habits.