IBM Advanced Deployment Professional Certification Exam 000-891

If you receive the "Non-system disk or disk error" error message, what issue should
you start troubleshooting for?

A. A missing operating system where the computer failed to locate a boot sector with an 000-890 operating system installed.
B. A memory size error.
C. A missing or malfunctioning keyboard.
D. None of the above
Answer: A
Explanation: You have a missing operating system when the computer fails to locate
a boot sector with an operating system installed on any of its disks.

Incorrect Answers
B: The power on self-test (POST), built into a computer, indicates memory specific
issues with a number commencing with 2.
C: The power on self-test (POST),000-891 built into a computer, indicates missing or
malfunctioning keyboard issues with a number commencing with 3.
D: A missing operating system is the correct answer.

References:
David Groth and Dan Newland, A+ Study Guide, 2nd Edition, Alameda, Sybex, 2004, p.
777.
James G. Jones, Craig Landes, A+ Exam Cram, 2nd Edition, Que Publishing,
Indianapolis, 2003, Chapter 16