CSI Cheat Sheet 2026

The 30 highest-yield CSI facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. When configuring a safety PLC for a safety integrity level (SIL) 2 application, which requirement is mandatory? → Redundant input channels with cross-checking (1oo2 or 2oo3 voting) must be implemented
2. What is the role of encryption in system security? → To protect sensitive data by converting it into an unreadable format
3. During integration testing, a 'stub' is used to: → Simulate a downstream component that is not yet available
4. A post-implementation review (PIR) after a major integration deployment should focus on: → Evaluating what went well, what failed, and lessons learned to improve future deployments
5. Which quality assurance method is most commonly applied in it project governance to verify that CSI professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks
6. Which of the following is a fundamental principle of system-to-system integration patterns as it applies to Certified System Integrator? → Systematic evaluation and adherence to established industry standards
7. Which quality assurance method is most commonly applied in security architecture & iam to verify that CSI professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks
8. What is the role of risk management in project management? → To identify, assess, and mitigate risks during integration
9. A 'rollback plan' in a deployment strategy is used to: → Revert to the previous stable state if a deployment fails
10. Why is user authentication critical for system security? → To ensure that only authorized users can access the system
11. Which of the following is a fundamental principle of vendor evaluation & selection as it applies to Certified System Integrator? → Systematic evaluation and adherence to established industry standards
12. A CSI professional encounters an unfamiliar situation while performing it project governance duties. What is the most appropriate first action? → Consult relevant standards, guidelines, or a qualified supervisor before proceeding
13. What is the role of communication in project management? → To ensure all stakeholders are informed and aligned with the project goals
14. Which quality assurance method is most commonly applied in restful api & middleware design to verify that CSI professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks
15. What is the primary purpose of system installation in system integration? → To set up the system components to work together efficiently
16. Which quality assurance method is most commonly applied in vendor evaluation & selection to verify that CSI professional standards are being met? → Structured audits, peer reviews, and performance metrics aligned with industry benchmarks
17. Which of the following best describes a 'message broker' in an integration architecture? → An intermediary that receives, routes, and delivers messages between applications
18. Which grounding strategy is recommended to minimize noise in a mixed-signal control panel containing both analog sensors and digital I/O? → Use a single-point (star) ground topology separating analog and digital ground references
19. In OAuth 2.0, which grant type is MOST appropriate for a server-to-server API integration where no user interaction is involved? → Client Credentials
20. Which of the following is a fundamental principle of data mapping & transformation as it applies to Certified System Integrator? → Systematic evaluation and adherence to established industry standards
21. A 'blue-green deployment' maintains two identical environments (blue and green) primarily to: → Enable instant rollback by switching traffic back to the idle environment
22. A technician installs a VFD (Variable Frequency Drive) but the motor runs at incorrect speed. The most likely configuration issue is: → Incorrect base frequency or motor poles parameter
23. A 'feature flag' (feature toggle) allows a system integrator to: → Enable or disable functionality at runtime without deploying new code
24. Which technique involves testing a system with volumes of data far beyond normal operational levels to identify breaking points? → Stress testing
25. Why is it important to document project changes during system integration? → To track and manage changes and their impacts
26. What is the primary ethical obligation of a CSI professional when a conflict of interest arises during data mapping & transformation activities? → Disclose the conflict to all relevant parties and recuse from the decision if necessary
27. What is the primary ethical obligation of a CSI professional when a conflict of interest arises during it project governance activities? → Disclose the conflict to all relevant parties and recuse from the decision if necessary
28. Which messaging pattern allows producers to publish messages to a topic that multiple consumers can independently subscribe to and receive? → Publish/Subscribe
29. What is the role of system architecture in integration? → To outline the structure and ensure seamless integration of system components
30. A regression test suite is MOST important after: → Every code change or patch to a live integrated system