IT Study Guide 2026
Everything you need to pass the IT exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 IT Exam Format at a Glance
📚 IT Topics to Study (21)
✍️ Sample IT Questions & Answers
1. What is the worst-case time complexity of QuickSort?
QuickSort degrades to O(n²) when the pivot consistently produces unbalanced partitions, such as with an already-sorted array.
2. During the fetch-decode-execute cycle, what happens in the 'decode' phase?
During decode, the control unit interprets the fetched instruction's opcode to determine which operation must be performed.
3. Which management approach in Bachelor's Degree in Information Technology emphasizes continuous improvement through small, incremental changes?
Kaizen is a Japanese management philosophy that focuses on continuous improvement through small, incremental changes involving all employees, leading to sustained improvement over time.
4. Which of these languages is used to create programs like applets?
Java is the programming language specifically designed to create applets, which are small applications that can be embedded into web pages and run within a web browser. Its 'write once, run anywhere' capability, achieved through the Java Virtual Machine (JVM), made it ideal for distributing interactive content across diverse computing environments. While applets are largely deprecated now, Java was the primary language for their development.
5. When testing top-down designs, the ___ is utilized as a dummy module.
In top-down testing, higher-level modules are tested first, and lower-level modules that are not yet developed or integrated are simulated. A 'stub module' is a dummy program unit used for this purpose; it provides a minimal implementation to allow the calling module to be tested, returning predefined values or performing basic actions. This enables incremental testing without waiting for all components to be complete.
6. Which backup strategy in Bachelor's Degree in Information Technology provides the most comprehensive data protection?
A combination of regular incremental backups (capturing changes) and periodic full backups provides comprehensive data protection, balancing storage efficiency with recovery capability.