1.4 Past Paper Questions
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Give two reasons why a library should use encryption when data is transmitted through its network.
Data cannot be understood if intercepted. Protects confidential or personal user data.
Tick one or more boxes on each row to identify all of the methods that can help to prevent each threat.
Spyware: Anti-malware and Firewall. Brute-force attack: Firewall. Data interception: Encryption. SQL injection: Anti-malware and Firewall.
Name and describe one threat to a computer system that is not Spyware Brute Force attack Data Interception or SQL Injection.
Denial of Service (DOS). Multiple requests are sent to a server flooding it and preventing it from responding to legitimate requests.
Identify two methods of physical security that a company could use to protect their computer systems.
Locks on doors. Keycard or biometric entry systems. Security guards. CCTV.
Identify and describe two software-based security methods that a company can use to protect their computer systems and data.
Firewall: Scans incoming and outgoing network traffic and blocks unauthorized traffic. Anti-malware software: Scans for identifies and removes malicious software.
Complete the table by writing the missing Forms of attack Descriptions and Methods of prevention.
Brute-force attack: A program attempting all possible password combinations. Prevention: Strong password or limit login attempts. Data interception: Data transmission being read by an unauthorised user. Prevention: Encryption. Virus: Software that damages or deletes data. Prevention: Anti-virus software.
Explain with reference to system security three ways that a hospital could protect its network system besides using strong passwords.
Firewall: Prevents unauthorized access to the network. Encryption: Renders any intercepted patient data useless. User Access Levels: Restricts staff access to only necessary patient data.
Identify three errors that hospital staff could make that may endanger network security and outline a procedure to prevent each.
Error: Bringing in infected files via USB drives. Procedure: Block the use of external storage devices. Error: Downloading infected files from the internet. Procedure: Restrict access to insecure websites. Error: Allowing physical access to unattended workstations. Procedure: Enforce automatic screen locking.