You are working as a technician at Certkiller .com. You are troubleshooting a workstation that will
not complete a POST (Power-on self test). Which two of the following components may be
defective to cause this behavior? (Select TWO).

A.
memory

B.
hard drive

C.
CD-ROM

D.
power supply

E.
CPU

Explanation:
Power-on self-test(POST) is the common term for a computer’s, router’s or printer’s pre-boot
sequence. The same basic sequence is present on all computer architectures. It is the first step of
the more general process called initial program load (IPL), booting, or bootstrapping. The term
POST has become popular in association with and as a result of the proliferation of the PC. It can
be used as a noun when referring to the code that controls the pre-boot phase or when referring to
the phase itself. It can also be used as a verb when referring to the code or the system as it
progresses through the pre-boot phase. POST will only test the motherboard and components on
the motherboard.