Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
Exhibit
Lobby access review: - 09:14:02 badge swipe accepted for employee j.tan - 09:14:07 an unknown person entered immediately behind j.tan - 09:14:19 CCTV shows the person had no badge visible - 09:16:44 the person exited through the same lobby door Current controls: - Badge reader on main entrance - CCTV camera facing the lobby - Monthly security awareness reminder about badge use
Based on the exhibit, which additional control best reduces the risk of tailgating at the entrance while preserving normal employee flow?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Post a security guard at the entrance during business hours.
A guard can deter tailgating, but this adds ongoing staffing cost and does not scale as well as a physical access device that enforces one-person-per-authentication.
B
Best answer
Install a mantrap or anti-passback turnstile that admits one person per badge authorization.
This is the best fit because the current controls detect the problem but do not stop it. A mantrap or turnstile is a preventive physical control that enforces single-person entry and directly addresses tailgating while keeping normal employee movement efficient. It reduces reliance on people noticing and reacting in real time.
C
Distractor review
Add more CCTV cameras in the lobby and at the parking lot entrance.
Additional cameras improve evidence collection, but they remain detective controls. They may help investigate tailgating after it happens, yet they do not physically prevent an unauthorized person from entering behind an employee.
D
Distractor review
Send quarterly emails reminding employees not to hold doors open.
Awareness reminders can help, but the exhibit shows a repeated physical bypass. Training alone is too weak when the organization needs a control that reliably enforces entry behavior at the door.
Common exam trap
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Technical deep dive
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
- Authentication checks who the user is.
- Authorization controls what the user is allowed to do after login.
- Privilege levels affect access to EXEC and configuration commands.
- AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
- Do not assume successful login means full administrative access.
- Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
- Separate login problems from permission problems before choosing the answer.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A laptop is suspected of being used in a malware incident. It is still powered on and connected to Wi-Fi. What should the responder do before shutting it down?
Question 2
An employee reports a ransomware note on a file server. The server is still powered on, shares are still being accessed, and management wants service restored as quickly as possible. What should the incident response team do first?
Question 3
An employee reports a ransomware note on a finance laptop. The laptop is still powered on, connected to Wi-Fi, and the user says they were just working in a spreadsheet. Management wants the fastest safe response that also preserves evidence. What should the responder do first?
Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
A branch office uses a flat LAN, and a compromise on one user workstation could spread quickly to finance systems. Management wants finance workstations isolated from general users, but finance staff still need access to a central finance application and network printer. What is the best design change?
FAQ
Questions learners often ask
What does this SY0-701 question test?
Authentication checks who the user is.
What is the correct answer to this question?
The correct answer is: Install a mantrap or anti-passback turnstile that admits one person per badge authorization. — The exhibit shows a clear gap between detection and prevention. CCTV already documents the tailgating, and awareness reminders have not stopped it. The best improvement is a physical preventive control such as a mantrap or anti-passback turnstile because it enforces one authenticated entry at a time. That directly reduces the chance of an unauthorized person following an authorized employee through the door without slowing normal operations excessively. Why others are wrong: A guard can help, but it creates a recurring staffing burden and is less consistent than an engineered entry control. More cameras only improve detective capability and evidence collection. Reminder emails are administrative and depend on user behavior, which the incident already shows is insufficient for this specific risk.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
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