CompTIA Network+ · N10-009
Objective 4.5: Explain the importance of physical security
Practice questions for Network+ objective 4.5, “Explain the importance of physical security.” Every question is original, written to the N10-009 exam objectives, and comes with a full explanation — answer them below to see instant grading.
This objective sits in Domain 4.0: Network Security, which is about 19% of the exam — so mastering it moves your readiness score meaningfully.
1.A data center entrance has a small enclosed room with two doors — the outer door must close and authenticate the visitor before the inner door will open, preventing tailgating. What is this physical security control called?
2.A company places a camera at the entrance to a server room and displays a live feed on a monitor at the reception desk so security staff can observe all persons entering. This is primarily which type of control?
3.A data center uses raised flooring with sensors that detect and alert security when unusual weight distribution is detected, indicating someone may be accessing subfloor cabling areas without authorization. This is an example of which control?
4.An organization wants to verify a person's identity at a secure door using their unique physiological characteristics rather than a card they could lend to someone else. Which access control method does this?
5.A company uses unique serial numbers and QR codes affixed to all laptops, monitors, and network equipment, with a database linking each tag to its assigned user and location. What is this practice called?
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