Quick Answer
The answer is `journalctl -xe`. This command is the correct choice because it directly queries the systemd journal, where all service failure reasons—such as exit codes, segmentation faults, or configuration errors—are logged for systemd-managed services like a web server. The `-x` flag adds explanatory context to cryptic log entries, while `-e` jumps to the end of the log, showing the most recent failure details without needing to scroll through hundreds of lines. On the CompTIA Linux+ XK0-005 exam, this question tests your ability to troubleshoot a failed systemd service efficiently, often appearing as a scenario where a service like httpd or nginx won’t start. A common trap is using `systemctl status` alone, which shows the service state but not the full failure reason from the journal. Remember the memory tip: “eXit to the End” for `-xe`—the `-x` explains, and `-e` ends at the latest log entry.
This XK0-005 practice question tests your understanding of troubleshooting. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses a Linux server running a web application. Users report that they cannot access the website. The administrator checks the web server status and finds it is not running. Which command should the administrator use to view the reason for the service failure?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "which command"
Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
journalctl -xe
Displays recent journal entries with explanations.
systemctl status httpd --full
Why wrong: Shows status but not full error context.
tail -f /var/log/httpd/access_log
Why wrong: Access log may not contain error details.
dmesg | grep httpd
Why wrong: Shows kernel messages, not service logs.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
journalctl -xe
The `journalctl -xe` command displays the systemd journal log with the `-x` flag adding explanatory context and `-e` jumping to the end of the log, which is the most direct way to view the reason a systemd-managed service like httpd failed. Since the web server is managed by systemd, its failure reason (e.g., exit code, segfault, configuration error) is recorded in the journal, and this command retrieves that specific failure detail without requiring manual log file parsing.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
journalctl -xe
Why this is correct
Displays recent journal entries with explanations.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
systemctl status httpd --full
Why it's wrong here
Shows status but not full error context.
tail -f /var/log/httpd/access_log
Why it's wrong here
Access log may not contain error details.
dmesg | grep httpd
Why it's wrong here
Shows kernel messages, not service logs.
Common exam traps
The trap here is that candidates confuse the access log (option C) with the error log, or assume `systemctl status` shows the full failure reason when it only shows a truncated snippet, while `journalctl -xe` is the standard command for detailed failure diagnostics in systemd-based distributions.
Trap categories for this question
Command / output trap
Shows status but not full error context.
Detailed technical explanation
The systemd journal (`journald`) stores structured binary logs with metadata such as priority, PID, and unit name, and `journalctl -xe` decodes this into human-readable output with explanatory hints (e.g., 'Subject: Unit httpd.service has failed'). In real-world scenarios, a service may fail due to a missing configuration file or a port conflict, and `journalctl -u httpd.service -n 50` is often more precise for isolating the unit's logs, but `-xe` is the quickest for a general failure reason.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Troubleshooting — study guide chapter
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FAQ
Troubleshooting — This question tests Troubleshooting — Read the scenario before looking for a memorised answer..
The correct answer is: journalctl -xe — The `journalctl -xe` command displays the systemd journal log with the `-x` flag adding explanatory context and `-e` jumping to the end of the log, which is the most direct way to view the reason a systemd-managed service like httpd failed. Since the web server is managed by systemd, its failure reason (e.g., exit code, segfault, configuration error) is recorded in the journal, and this command retrieves that specific failure detail without requiring manual log file parsing.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This XK0-005 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 XK0-005 exam.
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