Complete the sentence to explain OS hardening.
OS hardening reduces attack surface by [1] unnecessary services.Disabling unnecessary services removes potential entry points for attackers, thus reducing the attack surface.
Complete the sentence to describe a method of OS hardening.
Applying security patches regularly helps by [1] known vulnerabilities.Fixing known vulnerabilities through patches prevents attackers from exploiting them.
Fix the error in the sentence about OS hardening.
OS hardening reduces attack surface by [1] unused ports.Closing unused ports reduces the attack surface by limiting access points for attackers.
Fill both blanks to complete the OS hardening practice.
Using [1] authentication and [2] permissions helps secure the system.
Strong authentication ensures only authorized users access the system, and restrictive permissions limit what users can do, both reducing attack surface.
Fill all three blanks to describe OS hardening steps.
OS hardening involves [1] unnecessary software, [2] default passwords, and [3] firewall rules.
Removing unnecessary software reduces vulnerabilities, changing default passwords prevents easy access, and configuring firewall rules controls network traffic, all reducing attack surface.