The answer is implementing strict network segmentation and access control lists (ACLs) to allow only necessary traffic, as this directly addresses the risk of a breach exploiting legacy medical devices. This works by creating a micro-segmented enclave where only essential protocols and IP addresses are permitted, drastically limiting the blast radius and preventing lateral movement from a compromised infusion pump or patient monitor to critical hospital systems. On the Systems Security Certified Practitioner SSCP exam, this scenario tests your grasp of compensating controls in domain 2 (Access Controls) and domain 7 (Operations Security), where you must distinguish between proactive containment and reactive detection. A common trap is choosing intrusion detection alone, which only alerts after a breach, whereas segmentation with ACLs actively blocks unauthorized traffic. Memory tip: think “Segregate, then regulate”—first isolate the legacy devices, then lock down every allowed flow.
SSCP Security Operations and Administration Practice Question
This SSCP practice question tests your understanding of security operations and administration. 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 hospital's IT department manages a network with hundreds of medical devices, including patient monitors and infusion pumps, all connected to a separate VLAN. The security team has identified that several devices are running outdated firmware with known vulnerabilities. The vendor has not released patches for these legacy devices. The hospital cannot replace them immediately due to budget constraints. The network team proposes moving the devices to a more restrictive firewall zone and implementing intrusion detection. Which of the following additional controls should be implemented to BEST reduce the risk of a breach exploiting these devices?
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.
Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement strict network segmentation and access control lists (ACLs) to allow only necessary traffic
Segmenting the devices into a separate, highly restricted network segment limits the blast radius and prevents lateral movement. Option A is already proposed; B is best practice; C is acceptable but not sufficient; D is reactive.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Conduct daily vulnerability scans on the device VLAN
Why it's wrong here
Scanning identifies but does not mitigate the vulnerability; it may also cause instability.
✗
Deploy host-based intrusion prevention on each device
Why it's wrong here
Medical devices often cannot support additional software, and it may interfere with operation.
✗
Use a web application firewall (WAF) in front of the devices
Why it's wrong here
WAFs are for HTTP traffic; medical devices often use proprietary protocols.
✓
Implement strict network segmentation and access control lists (ACLs) to allow only necessary traffic
Why this is correct
Segmentation with ACLs minimizes exposure and is feasible without modifying the devices.
Clue confirmation
The clue words "best", "immediately / without restart" in the question point toward this answer.
Related concept
Authentication checks who the user is.
Common exam traps
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.
Detailed technical explanation
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.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Real-world example
How this comes up in practice
A security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
What to study next
Got this wrong? Here's your next step.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SSCP questions on access control and AAA configuration.
Security Operations and Administration — This question tests Security Operations and Administration — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: Implement strict network segmentation and access control lists (ACLs) to allow only necessary traffic — Segmenting the devices into a separate, highly restricted network segment limits the blast radius and prevents lateral movement. Option A is already proposed; B is best practice; C is acceptable but not sufficient; D is reactive.
What should I do if I get this SSCP question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SSCP questions on access control and AAA configuration.
Are there clue words in this question I should notice?
Yes — watch for: "best", "immediately / without restart". 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?
Authentication checks who the user is.
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