Operating System Hardening

• Restricting the access to an operating system by limiting the number of users
• Optimizing the performance of an operating system by removing unnecessary components
• Upgrading the operating system to the latest version
• Strengthening the security of an operating system by implementing various measures (correct)

• A hardware feature that helps prevent certain types of attacks (correct)
• A software tool used for debugging operating systems
• A programming language commonly used for operating system development
• A security protocol used for encrypting data in transit

• Granting administrative privileges to all users for convenience
• Implementing strong encryption algorithms
• Allowing unrestricted access to all system resources
• Limiting user privileges to only what is necessary for their tasks (correct)