ICT Cheat Sheet 2026

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

1. Which of these operating systems is free? → Ubuntu
2. Which protocol provides encrypted communication for secure web browsing? → HTTPS
3. Which of the following is an example of volatile memory, meaning its contents are lost when the computer powers off? → Random Access Memory (RAM)
4. What is the primary purpose of CSS in web development? → To control the presentation and styling of web pages
5. What does HTML stand for? → Hypertext Markup Language
6. In what way should an email begin? → Type the subject.
7. What distinguishes HTTPS from HTTP in terms of data security? → HTTPS encrypts data using TLS/SSL
8. A Universal Serial Bus: What Is It? → USB Port
9. In the TCP/IP model, which layer is responsible for logical addressing, routing, and path determination for data packets across different networks? → Internet Layer
10. Of the following, which one isn't a web browser? → Facebook
11. Which of the following scenarios is best suited for using the User Datagram Protocol (UDP) instead of the Transmission Control Protocol (TCP)? → Streaming a live video conference.
12. What is the main purpose of internet security software in terms of safeguarding your computer? → strengthens the defenses of the computer against internet attacks.
13. An embedded system: what is it? → A micro processor
14. A user connects a new printer to their computer, but it doesn't work. The operating system does not recognize the device. What is most likely missing? → A device driver
15. Which HTTP method is used to retrieve data from a server without modifying it? → GET
16. What does URL stand for? → Uniform Resource Locator
17. What is used to make IC chips? → Silicon
18. Which HTML tag is used to create a hyperlink to another web page? →
19. What is the default port number used for standard HTTP web traffic? → 80
20. What is the purpose of a sitemap in web development? → To provide search engines and users with a structured list of all pages on a website
21. Which area of the computer system is accessible to the human touch? → Hardware
22. Which of the following is a primary responsibility of the operating system's kernel? → Managing the core, central functions like CPU scheduling and memory management.
23. Which layer of the OSI model is responsible for establishing, managing, and terminating connections between applications on different hosts? → Session Layer
24. Which of the following is a client-side scripting language used to make web pages interactive? → JavaScript
25. What does API stand for in the context of web development? → Application Programming Interface
26. What is a domain name in web technology? → The human-readable address used to identify and access a website on the internet
27. What location is RAM in? → Motherboard
28. Why is it advised that you backup your files? → To have a duplicate in case something goes wrong
29. RAM/DRAM: What is it? → Random Access Memory
30. In a relational database, which of the following is used to uniquely identify each record in a table and establish a link to data in another table? → Primary Key