220-1101-AND-220-1102 practice question 7 of 35

A user is no longer able to start the OS on a computer and receives an error message indicating there is no OS found. A technician reviews the audit logs and notes that the user's system posted a S.M.A.R.T. error just days before this issue. Which of the following is the MOST likely cause of this issue?

Full set: 800 questions
Answer options
A: Boot order
B: Malware
C: Drive failure Correct answer
D: Windows updates
Correct Answer:
C. Drive failure
Explanation

The S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) error is the critical piece of information. S.M.A.R.T. is a hardware-level monitoring system built into storage drives to detect and report on various indicators of reliability, with the primary goal of anticipating failures. A logged S.M.A.R.T. error is a direct warning of impending hardware failure. The subsequent "no OS found" message indicates the system's BIOS/UEFI could not locate or read the operating system from the storage device. The combination of a predictive hardware failure warning (S.M.A.R.T. error) followed by the inability to access the OS makes physical drive failure the most likely cause.

Why Incorrect

A. Boot order: An incorrect boot order is a BIOS/UEFI configuration issue and would not cause the drive's hardware to report a S.M.A.R.T. error.
B. Malware: Malware is a software issue. While it can corrupt boot files, it does not trigger hardware-specific S.M.A.R.T. alerts from the drive itself.
D. Windows updates: A failed operating system update is a software problem and is unrelated to the physical health monitoring that generates a S.M.A.R.T. error.

References

1. Pinheiro

E.

Weber

W. D.

& Barroso

L. A. (2007). Failure Trends in a Large Disk Drive Population. 5th USENIX Conference on File and Storage Technologies (FAST '07). Section 4

"Analysis of SMART data

" discusses the correlation between specific S.M.A.R.T. parameters and the increased probability of drive failure.

2. Dell Inc. (2024). How to Troubleshoot Hard Drive or Solid-State Drive Issues on a Dell Computer. Dell Knowledge Base Article: 000132321. In the section "What are the symptoms of a hard drive failure?"

the article explicitly lists "S.M.A.R.T. (also called SMART) errors" as a primary symptom.

3. University of Washington

IT Connect. Hard Drive Failure: Warning Signs and Solutions. This document lists "S.M.A.R.T. Status is BAD" as a key warning sign that a hard drive is about to fail

advising users to back up data immediately.

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