ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question
During requirements elicitation, a security architect must identify an operational (non-functional) security requirement for a new microservice that will run in production. Which of the following best fits that category?
The service shall forward security and audit logs to the enterprise SIEM using TLS-protected syslog messages.
The API shall return an account balance within 200 milliseconds for 95 % of valid requests.
The system shall require user passwords to be at least 12 characters long.
The application shall allow authenticated users to upload PDF invoice files.
Operational security requirements describe how the software must behave to support secure operations in its target environment-typically monitoring, logging, or incident-response integration. Forwarding detailed audit logs to a centralized SIEM supports continuous monitoring and incident handling, so it is operational. The password length rule and the upload feature are functional requirements, while the 200 ms response is a performance requirement unrelated to security operations.
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What is a SIEM and why is it important?
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ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Requirements
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