- A
Install a door-ajar alarm and use a self-closing door mechanism.
A door-ajar alarm combined with a self-closing mechanism directly addresses the problem by alerting staff when the door is left open and reducing the chance that it stays open. This is a practical physical security control because it supports both detection and prevention. It helps protect restricted areas without relying only on user behavior.
- B
Add more desk chairs outside the server room for convenience.
Why wrong: Adding chairs does nothing to improve security and may even encourage staff to linger near the secured area.
- C
Increase the screen brightness on the monitoring workstation.
Why wrong: Screen brightness does not address the physical access issue. It may help visibility, but it is unrelated to door control.
- D
Move backup tapes to a nearby shelf for easier access.
Why wrong: Moving backups to a nearby shelf could make sensitive media less protected. It does not solve the open-door problem.
Quick Answer
The correct answer is to install a door-ajar alarm and use a self-closing door mechanism. This combination directly addresses the behavior of propping a server room door open by providing both detection and physical prevention: the alarm immediately alerts personnel when the door remains ajar, while the self-closing mechanism ensures the door automatically shuts after each use, eliminating the opportunity to leave it propped. On the Security+ SY0-701 exam, this scenario tests your understanding of physical security controls under Domain 1.2, specifically how deterrent and preventive measures work together to protect sensitive areas. A common trap is choosing only a surveillance camera or a sign, which detect or warn but do not actively prevent the door from being held open. Remember the pairing: alarm detects, self-closer prevents—think “hear it, close it” to recall that both are needed for full coverage.
SY0-701 Security Operations Practice Question
This SY0-701 practice question tests your understanding of security operations. 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.
Employees in a server room often prop the door open while carrying equipment. What control best helps detect and prevent this behavior?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Install a door-ajar alarm and use a self-closing door mechanism.
A door-ajar alarm provides immediate notification when the door is left open, while a self-closing door mechanism physically ensures the door closes automatically after each use. Together, they directly address the behavior of propping the door open by both detecting the violation and preventing it from remaining open, which is critical for maintaining physical security controls in a server room.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Install a door-ajar alarm and use a self-closing door mechanism.
Why this is correct
A door-ajar alarm combined with a self-closing mechanism directly addresses the problem by alerting staff when the door is left open and reducing the chance that it stays open. This is a practical physical security control because it supports both detection and prevention. It helps protect restricted areas without relying only on user behavior.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Add more desk chairs outside the server room for convenience.
Why it's wrong here
Adding chairs does nothing to improve security and may even encourage staff to linger near the secured area.
- ✗
Increase the screen brightness on the monitoring workstation.
Why it's wrong here
Screen brightness does not address the physical access issue. It may help visibility, but it is unrelated to door control.
- ✗
Move backup tapes to a nearby shelf for easier access.
Why it's wrong here
Moving backups to a nearby shelf could make sensitive media less protected. It does not solve the open-door problem.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may choose a convenience-based option (like adding chairs or moving tapes) thinking it addresses the root cause, but the question specifically asks for a control that both detects and prevents the behavior, which only a combination of a door-ajar alarm and a self-closing mechanism achieves.
Detailed technical explanation
How to think about this question
A door-ajar alarm typically uses a magnetic reed switch or a contact sensor that detects when the door is not fully closed, triggering an audible or silent alert to a security management system. Self-closing door mechanisms rely on spring-loaded hinges or hydraulic door closers that automatically return the door to the closed position, ensuring the door does not remain open even if an employee forgets to close it. In real-world scenarios, combining these controls is essential because a self-closer alone can be defeated by a doorstop, while an alarm alone does not physically close the door, so together they provide both detection and prevention.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Install a door-ajar alarm and use a self-closing door mechanism. — A door-ajar alarm provides immediate notification when the door is left open, while a self-closing door mechanism physically ensures the door closes automatically after each use. Together, they directly address the behavior of propping the door open by both detecting the violation and preventing it from remaining open, which is critical for maintaining physical security controls in a server room.
What should I do if I get this SY0-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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