ITPEC IP October 2020 Question 17
ITPEC IP October 2020 — Question 17 of 100
The startup order is BIOS, operating system, then resident application program. Firmware begins executing when power is applied, initializes and checks hardware, and locates the boot loader. The OS then loads and establishes its services, after which startup applications can run.
Answer (a)
Why not others:
- the OS cannot start before firmware initializes the hardware and boot process
- an application depends on OS services and therefore cannot precede the OS
- any sequence placing BIOS last or an application first reverses these dependencies
Key rule: Startup proceeds from firmware to operating system to applications.
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