SK0-005 troubleshooting Practice Question
A server administrator is troubleshooting an issue where a database server's performance degrades every night at 2 AM. Resource monitor shows high disk I/O and CPU usage during that time. There are no scheduled tasks on the server. Which of the following should the administrator investigate FIRST?
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
✓
Scheduled antivirus scans on the server
Option A is correct because centrally managed antivirus software may perform scans at a default time, causing high resource usage. Option B would result in network utilization, not local disk I/O. Option C is possible but typically scheduled and would appear in the task scheduler. Option D contradicts the statement that no scheduled tasks exist.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Network congestion from backups
Why it's wrong here
Network congestion would not directly increase local disk I/O, and backups would not necessarily cause high CPU usage on the database server itself.
- ✗
Disk defragmentation tasks
Why it's wrong here
Defragmentation is typically a scheduled task and would appear in the task list; the scenario states no scheduled tasks exist.
- ✗
A cron job misconfiguration
Why it's wrong here
Cron jobs are scheduled tasks; the scenario explicitly says there are no scheduled tasks on the server.
- ✓
Scheduled antivirus scans on the server
Why this is correct
Many antivirus solutions have a default scan schedule; even without local tasks, managed scans can run at 2 AM and heavily use disk and CPU.
Go deeper
Related to this question
Learn chapter
Network Configuration and Connectivity
Key term
Task
A Task in Azure DevOps is a predefined, reusable step that performs a specific action during a build or release pipeline, like compiling code or running tests.
Key term
Resource
A resource is any component, service, or asset in a computing environment that can be allocated, used, or consumed to perform a task or support a process.
About these practice questions
Courseiva writes every SK0-005 question from scratch — 185 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.