What does confidentiality ensure in the context of information security?

• Data is backed up regularly

• Information is only accessible to authorised individuals

• Systems are available 24/7

• Data remains unaltered

• Information is encrypted

Answer explanation

Confidentiality in information security ensures that data is only accessible to authorised individuals, protecting sensitive information from unauthorized access.

What is the purpose of document classification?

• To categorise documents based on content type

• To organise documents alphabetically

• To categorise documents based on their sensitivity and impact of disclosure

• To tag documents for easy search

• To archive old documents

Answer explanation

To categorise documents based on their sensitivity and impact of disclosure

Which of the following is a privacy measure used to protect personal data?

• Access controls

• Data mirroring

• Network segmentation

• Password rotation

• System hardening

Answer explanation

Access controls are a privacy measure used to protect personal data by regulating who can access it, ensuring only authorized individuals can view or modify the data.

What is encryption primarily used for in information security?

• Backing up data

• Converting data into a coded format that only authorised users can read

Answer explanation

Encryption is primarily used in information security to convert data into a coded format that only authorized users can read, ensuring data confidentiality and security.

Which process converts data into a fixed-size string of characters for integrity verification?

• Encryption

• Hashing

• Compression

• Encoding

• Backup

Answer explanation

Hashing is the process that converts data into a fixed-size string of characters for integrity verification, making it the correct choice in this scenario.

What does version control help achieve in software development?

• Reducing code size

• Recording changes to files over time

• Encrypting data

• Running automated tests

• Compiling code

Answer explanation

Version control helps achieve recording changes to files over time in software development, allowing for tracking and managing modifications made to code and project files.

What ensures that a party cannot deny the authenticity of their signature or the sending of a message?

• Confidentiality

• Integrity

• Availability

• Non-repudiation

• Scalability

Answer explanation

Non-repudiation ensures that a party cannot deny the authenticity of their signature or the sending of a message.

Which of the following ensures systems and resources are accessible to authorised users when needed?

• Confidentiality

• Integrity

• Availability

• Redundancy

• Scalability

Answer explanation

Availability ensures systems and resources are accessible to authorised users when needed.

What is a common method to maintain system availability?

• Data classification

• Encryption

• Redundancy

• Hashing

• Non-repudiation

Answer explanation

Redundancy is a common method to maintain system availability by having backup systems or components in place to ensure continuous operation in case of failures.

What can help prevent system performance bottlenecks?

• Regular upgrades and maintenance

• Increasing data classification levels

• Removing encryption

• Limiting user access

• Disabling firewalls

Answer explanation

Regular upgrades and maintenance can help prevent system performance bottlenecks by ensuring that the system is up-to-date and functioning optimally.