Quick Answer
The answer is `systemctl stop httpd`. This command sends a SIGTERM signal to the httpd process, halting it immediately without altering its enablement status, meaning the service remains configured to start automatically at boot. On the Linux Foundation Certified System Administrator LFCS exam, this tests your understanding of the critical distinction between stopping a service and disabling it—a common trap is confusing `systemctl stop` with `systemctl disable`, which removes the boot-time symlink. To temporarily stop a service without disabling systemd, always use `stop`; the enablement state is managed separately by `enable` or `disable`. A helpful memory tip: think of `stop` as a pause button for the current session, while `disable` is a permanent change to the startup playlist.
This LFCS practice question tests your understanding of service configuration. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 Linux administrator needs to temporarily stop a service named 'httpd' without disabling it from starting automatically on subsequent boots. Which command should be used?
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.
systemctl stop httpd
Stops the service immediately without changing its enable status.
systemctl mask httpd
Why wrong: Masks the service, preventing it from starting.
systemctl disable httpd
Why wrong: Disables the service from starting at boot.
systemctl kill httpd
Why wrong: Sends a signal to the service's processes; does not perform a clean stop.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
systemctl stop httpd
The `systemctl stop httpd` command sends a SIGTERM signal to the main process of the httpd service, causing it to stop immediately. This action does not modify the service's enablement state, so the service will still start automatically on subsequent boots if it is enabled. This is the correct way to temporarily stop a service without altering its boot-time behavior.
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.
systemctl stop httpd
Why this is correct
Stops the service immediately without changing its enable status.
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 mask httpd
Why it's wrong here
Masks the service, preventing it from starting.
systemctl disable httpd
Why it's wrong here
Disables the service from starting at boot.
systemctl kill httpd
Why it's wrong here
Sends a signal to the service's processes; does not perform a clean stop.
Common exam traps
The trap here is that candidates confuse 'stop' with 'disable' or 'mask', thinking that stopping a service also prevents it from starting at boot, when in fact 'stop' only affects the current runtime state and has no effect on boot-time enablement.
Detailed technical explanation
Under the hood, `systemctl stop` calls the unit's ExecStop command (if defined) or sends SIGTERM followed by SIGKILL after a timeout (DefaultTimeoutStopSec=90s). The service's enablement status is stored separately in the /etc/systemd/system/ directory via symlinks (e.g., multi-user.target.wants/), which are untouched by the stop command. In real-world scenarios, an administrator might use `systemctl stop` during maintenance (e.g., applying a config update) and then `systemctl start` to resume, knowing the service will restart automatically on the next reboot if it remains enabled.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
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FAQ
Service Configuration — This question tests Service Configuration — Read the scenario before looking for a memorised answer..
The correct answer is: systemctl stop httpd — The `systemctl stop httpd` command sends a SIGTERM signal to the main process of the httpd service, causing it to stop immediately. This action does not modify the service's enablement state, so the service will still start automatically on subsequent boots if it is enabled. This is the correct way to temporarily stop a service without altering its boot-time behavior.
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 11, 2026
This LFCS practice question is part of Courseiva's free Linux Foundation 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 LFCS exam.
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