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. How are cryptocurrency transactions recorded, what type of technology is used? → Blockchain technology
2. If you want to boot into Safe Mode on a Windows computer, what key do you need to press? → F8
3. Which resource allocation strategy in Bachelor's Degree in Information Technology project management focuses on maximizing output with limited resources? → Optimization of available resources through prioritization
4. Which of these languages is used to create programs like applets? → Java
5. What does system integration mean in Bachelor's Degree in Information Technology networking fundamentals? → Connecting different systems so they can work together and share data seamlessly
6. What is the purpose of branch prediction in a CPU pipeline? → To speculatively execute instructions after a conditional branch to avoid pipeline stalls
7. In Bachelor's Degree in Information Technology, what is the purpose of an audit trail in information systems? → To maintain a chronological record of system activities and changes
8. Number of OSI layers in total. → 7
9. What is the primary purpose of a Feasibility Study in systems analysis? → To determine if a proposed system is viable technically, economically, and operationally
10. What is the primary purpose of cache memory in a computer system? → To reduce the speed gap between the CPU and main memory
11. Which data structure is most efficient for implementing a priority queue? → Binary Heap
12. In Bachelor's Degree in Information Technology, why is web development knowledge important for professional certification? → It demonstrates competence and ensures practitioners meet established standards
13. What is the primary objective of programming concepts in Bachelor's Degree in Information Technology? → To ensure competence and proficiency in core programming concepts concepts
14. What is a best practice in Bachelor's Degree in Information Technology software engineering? → A method or technique recognized as superior based on evidence and expert consensus
15. The term "Linux" represents an _____. → Operating System
16. Which graph traversal algorithm uses a queue and visits all neighbors before going deeper? → Breadth-First Search
17. In structured systems design, what does 'coupling' refer to? → The degree of interdependence between software modules
18. Which management approach in Bachelor's Degree in Information Technology emphasizes continuous improvement through small, incremental changes? → Kaizen methodology
19. This technology is what allows people to make phone calls over the internet. → VoIP
20. What is the primary goal of the 'Analysis' phase in the SDLC? → To understand and document what the current system does and what the new system must do
21. What combination of keys do you press to bring down all displays and open windows currently visible on the screen? → Windows Key+D
22. Which management approach in Bachelor's Degree in Information Technology emphasizes continuous improvement through small, incremental changes? → Kaizen methodology
23. In Bachelor's Degree in Information Technology, what is the primary function of strategic planning in database management? → To set long-term goals and determine the best approach to achieve them
24. Which backup strategy in Bachelor's Degree in Information Technology provides the most comprehensive data protection? → Regular incremental backups combined with periodic full backups
25. In a hash table, what is a collision? → When two keys map to the same index
26. What algorithm technique solves a problem by breaking it into overlapping subproblems and storing their results? → Dynamic Programming
27. URL is an acronym for _______. → uniform resource locator
28. What does a Data Flow Diagram (DFD) primarily represent? → The flow of data through a system and its processes
29. Which sorting algorithm has an average-case time complexity of O(n log n)? → Merge Sort
30. What is virtual memory? → A technique using disk space to extend the apparent RAM capacity