IT Cheat Sheet 2026

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

1. What is virtualization in IT operations? → Running multiple systems on one machine
2. What type of attack floods a system with traffic to disrupt services? → DDoS
3. How should professionals apply safety and compliance in daily practice? → Consistently integrate best practices into every aspect of professional work
4. In a cloud deployment model, which option allows an organization to use a mix of on-premises private infrastructure and public cloud services? → Hybrid cloud
5. What does 'auto-scaling' allow in a cloud environment? → Automatically adjusting the number of compute instances based on traffic or load
6. How should professionals apply industry best practices in daily practice? → Consistently integrate best practices into every aspect of professional work
7. What term describes the ability of a cloud environment to automatically increase or decrease computing resources based on current demand? → Elasticity
8. What is the foundational principle of continuing education requirements in the Information Technology Certified field? → Maintaining competence, integrity, and service to stakeholders
9. What ethical standard governs industry best practices practice? → Adherence to the profession's code of ethics and applicable laws and regulations
10. Which type of backup includes all selected files regardless of previous backups? → Full
11. In cloud computing, what is a 'availability zone'? → An isolated location within a cloud region with independent power and networking
12. What quality assurance measure supports industry best practices? → Regular self-assessment, peer review, and adherence to established standards
13. Which SQL command is used to retrieve data? → SELECT
14. How should challenges in assessment and evaluation be addressed? → Apply systematic problem-solving, seek expert guidance when needed, and document decisions
15. How should challenges in safety and compliance be addressed? → Apply systematic problem-solving, seek expert guidance when needed, and document decisions
16. Which type of hypervisor runs directly on the physical hardware without requiring a host operating system? → Type 1 hypervisor
17. Which database type uses tables to store data? → Relational
18. Which data type is used to store whole numbers in programming? → Integer
19. What is the foundational principle of industry best practices in the Information Technology Certified field? → Maintaining competence, integrity, and service to stakeholders
20. What is the purpose of a cloud 'CDN' (Content Delivery Network)? → To distribute content to users from geographically closer servers for faster delivery
21. What is the primary role of a system administrator? → Managing servers and systems
22. Which language is commonly used for web development? → JavaScript
23. What is the foundational principle of communication and documentation in the Information Technology Certified field? → Maintaining competence, integrity, and service to stakeholders
24. What ethical standard governs core concepts and principles practice? → Adherence to the profession's code of ethics and applicable laws and regulations
25. What quality assurance measure supports continuing education requirements? → Regular self-assessment, peer review, and adherence to established standards
26. How should challenges in industry best practices be addressed? → Apply systematic problem-solving, seek expert guidance when needed, and document decisions
27. What is the purpose of multi-factor authentication (MFA)? → Enhance security
28. What is an API used for? → Connect programs
29. How should professionals apply applied methods and techniques in daily practice? → Consistently integrate best practices into every aspect of professional work
30. What ethical standard governs assessment and evaluation practice? → Adherence to the profession's code of ethics and applicable laws and regulations