Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a system call?
💡 Hint: Think about how applications communicate with the operating system.
Question 2
Easy
What does the 'close()' system call do?
💡 Hint: What do you do when you're finished using something?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the open() system call do?
- Creates a new file
- Opens an existing file
- Deletes a file
💡 Hint: Think about what happens to a file when you open it.
Question 2
True or False: The close() system call is optional and can be omitted.
- True
- False
💡 Hint: What happens if you leave a door open?
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a simple C program that opens, reads, and writes to a file, incorporating robust error handling and resource management.
💡 Hint: What steps must you follow to ensure your program doesn't leak resources?
Question 2
Explain the potential consequences of neglecting to close file descriptors in a long-running application.
💡 Hint: In what scenarios might this become a significant problem?
Challenge and get performance evaluation