SK0-005 security-disaster-recovery Practice Question
Exhibit
[ERROR] Backup failed: Unable to mount network share \\192.168.1.100\backups. Access denied.
Refer to the exhibit. A backup administrator scheduled a nightly backup to a network share. The backup job fails with the error shown in the log. What is the most likely cause?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The service account lacks write permissions to the share
Option C is correct because the “Access denied” message indicates a permissions issue, likely that the service account running the backup lacks write access to the share. The share being offline would likely show “network path not found,” a full disk would show “insufficient space,” and the software not installed would prevent the job from running at all.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The backup destination disk is full
Why it's wrong here
A full disk would generate an “insufficient disk space” error, not an access denied error.
- ✗
The network share is offline
Why it's wrong here
An offline share typically results in a “network path not found” or “host unreachable” error, not “access denied.”
- ✓
The service account lacks write permissions to the share
Why this is correct
“Access denied” clearly indicates a permissions problem, and the backup account does not have the necessary rights.
- ✗
The backup software is not installed
Why it's wrong here
If the software were not installed, the error would not be about mounting a share; the job would not execute.
Go deeper
Related to this question
Learn chapter
Troubleshooting OS and Software Issues
Key term
Service account
A service account is a special type of account used by an application or a virtual machine, rather than a human user, to authenticate and interact with cloud services and APIs securely.
Key term
Service
A service is a software component or system that performs a specific function and is available to be used by other programs or users over a network.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed July 2026 · checked against the official CompTIA exam blueprint
This SK0-005 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SK0-005 exam.