Free SSCP Systems and Application Security Practice Test 2026 — ISC2 Questions

This free SSCP Systems and Application Security practice test covers protecting endpoints and applications — malware analysis and countermeasures, endpoint protection, mobile device management, cloud security, and secure virtualization. Each question includes a detailed explanation written from an operational security perspective — perfect for ISC2 SSCP exam prep.

Key Topics in SSCP Systems and Application Security

Free SSCP Systems and Application Security Practice Questions with Answers

Each question below includes 4 answer options, the correct answer, and a detailed explanation. These are real questions from the FlashGenius SSCP question bank for the Systems and Application Security domain (15% of the exam).

Sample Question 1 — Systems and Application Security

You are a systems administrator tasked with securing a Linux server that hosts a critical web application. The server has been experiencing unauthorized access attempts. Which of the following actions should you take to enhance the security of the SSH service on this server?

  1. A. Change the default SSH port from 22 to a non-standard port. (Correct answer)
  2. B. Enable root login over SSH to simplify administrative tasks.
  3. C. Disable the firewall to improve server performance.
  4. D. Install and configure a web application firewall (WAF) to protect the SSH service.

Correct answer: A

Explanation: Changing the default SSH port from 22 to a non-standard port can help reduce the number of automated attacks targeting the SSH service. Option B is incorrect because enabling root login over SSH increases security risks. Option C is incorrect as disabling the firewall would expose the server to more threats. Option D is incorrect because a WAF is designed to protect web applications, not the SSH service.

Sample Question 2 — Systems and Application Security

As a security analyst, you are reviewing logs from a SIEM system and notice repeated failed login attempts to a Windows server from an external IP address. What is the most appropriate immediate action to take?

  1. A. Block the IP address at the firewall to prevent further attempts. (Correct answer)
  2. B. Reboot the Windows server to clear potential security threats.
  3. C. Increase the server's login attempt threshold to reduce false positives.
  4. D. Disable user accounts that have experienced failed login attempts.

Correct answer: A

Explanation: Blocking the IP address at the firewall is the most immediate and effective action to prevent further unauthorized login attempts from that source. Option B is incorrect because rebooting the server does not address the root cause of the failed login attempts. Option C is incorrect as increasing the login attempt threshold could allow more unauthorized attempts before detection. Option D is incorrect because disabling user accounts could disrupt legitimate users and does not address the external attack.

Sample Question 3 — Systems and Application Security

You are a systems administrator tasked with securing a Linux server that hosts a web application. The application stores sensitive user data. Which of the following actions should you prioritize to enhance the server's security?

  1. A. Disable unused services and daemons. (Correct answer)
  2. B. Implement a firewall rule allowing all incoming traffic.
  3. C. Set up a guest account with limited privileges.
  4. D. Enable root login via SSH for convenience.

Correct answer: A

Explanation: Disabling unused services and daemons reduces the attack surface by ensuring that only necessary services are running, minimizing potential vulnerabilities. Option B is incorrect as it exposes the server to unnecessary risk. Option C is risky if not managed properly, and option D is insecure as it increases the risk of unauthorized access.

Sample Question 4 — Systems and Application Security

During a routine security audit, you discover that a critical application is running with outdated software on a Windows server. What is the most appropriate immediate action to take?

  1. A. Immediately uninstall the outdated application.
  2. B. Apply the latest security patches to the application. (Correct answer)
  3. C. Disable the application to prevent potential exploits.
  4. D. Notify users to avoid using the application until updates are applied.

Correct answer: B

Explanation: Applying the latest security patches is the most effective immediate action to mitigate known vulnerabilities. Option A could disrupt business operations, C might cause unnecessary downtime, and D does not address the security risk directly.

Sample Question 5 — Systems and Application Security

Your organization uses a SIEM to monitor security events. You notice a spike in failed login attempts on a critical server. What is the best initial response?

  1. A. Ignore the alerts if no successful logins are detected.
  2. B. Immediately block the IP addresses associated with the failed attempts.
  3. C. Investigate the source and pattern of the login attempts. (Correct answer)
  4. D. Reboot the server to stop the potential attack.

Correct answer: C

Explanation: Investigating the source and pattern of the login attempts is crucial to understand the nature of the potential attack and take informed action. Option A neglects the potential threat, B might disrupt legitimate services, and D is not a strategic response.

Sample Question 6 — Systems and Application Security

A new vulnerability has been reported in a third-party library used by your web application. What is the best course of action to secure your application?

  1. A. Wait for the vendor to release an official patch.
  2. B. Immediately remove the library from your application.
  3. C. Apply a temporary workaround or patch if available. (Correct answer)
  4. D. Ignore the vulnerability if no exploits are known.

Correct answer: C

Explanation: Applying a temporary workaround or patch helps mitigate the risk until an official patch is available. Option A could leave the system vulnerable for an extended period, B might break application functionality, and D is neglectful of potential risks.

How to Study SSCP Systems and Application Security

Combine these SSCP Systems and Application Security practice questions with the official ISC2 study guide. Since October 2025 the SSCP uses adaptive CAT testing — one pass, no reviewing answers — so practice scenario-based judgment under timed conditions rather than memorizing definitions.

Frequently Asked Questions about SSCP Systems and Application Security

What does the SSCP Systems and Application Security domain cover?

SSCP Systems and Application Security covers protecting endpoints and applications — malware analysis and countermeasures, endpoint protection, mobile device management, cloud security, and secure virtualization. Expect scenario-based questions covering Malware & Countermeasures, Endpoint Protection, MDM & BYOD, Cloud Security, Virtualization & Containers, Application Vulnerabilities.

How many Systems and Application Security practice questions are on this page?

This free practice set includes SSCP Systems and Application Security questions with detailed explanations. Premium members get unlimited access to the full SSCP question bank across all 7 domains.

What weight does Systems and Application Security have on the SSCP exam?

Systems and Application Security accounts for 15% of the ISC2 SSCP exam content.

Is this SSCP Systems and Application Security practice test free?

Yes. The practice test is completely free with no signup required. You get instant scoring and detailed explanations for every question.

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