Certified Secure Software Lifecycle Professional (CSSLP) — Question 26

Which of the following are the principle duties performed by the BIOS during POST (power-on-self-test)? Each correct answer represents a part of the solution.
Choose all that apply.

Answer options

• A. It provides a user interface for system's configuration.
• B. It identifies, organizes, and selects boot devices.
• C. It delegates control to other BIOS, if it is required.
• D. It discovers size and verifies system memory.
• E. It verifies the integrity of the BIOS code itself.
• F. It interrupts the execution of all running programs.

Correct answer: F, B, I, O, S

Explanation

The correct answers are F, B, I, O, S because during the POST, the BIOS does indeed interrupt running programs, identifies and organizes boot devices, and performs other essential checks. Options A, C, D, and E do not accurately describe the core duties of the BIOS during this specific phase.