FUNDAMENTALS OF COMPUTER

TROUBLESHOOTING COMPUTER ISSUES

IDENTIFYING HARDWARE SOFTWARE NETWORK PROBLEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A power-on self-test (POST) card is used during POST to do what?
A
Produce diagnostic error codes
B
Produce proper hardware beeps for all components
C
Produce tone for Ethernet interfaces
D
Produce signals that measure data loss between components
Explanation: 

Detailed explanation-1: -The Power-On Self-Test process verifies the viability of the hardware necessary to run a computer’s OS and applications properly.

Detailed explanation-2: -In computing, a POST card is a plug-in diagnostic interface card that displays progress and error codes generated during power-on self-test (POST) of a computer. It is used to troubleshoot computers that do not start up.

Detailed explanation-3: -POST sequence is executed irrespective of the Operating System and is handled by the system BIOS. Once the tests are passed the POST would generally notify the OS with beeps while the number of beeps can vary from system to system.

Detailed explanation-4: -Techopedia Explains Power-On Self Test (POST) In many cases, with IBM-compatible or PC computers, the POST is run by a computer’s basic input/output system (BIOS).

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