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Important Introduction to Programming Short Questions

Chapter: 24
Question 1:
Why is dynamic memory allocation considered more efficient than static memory allocation?
Answer: Dynamic memory allocation is more efficient because it allocates memory as needed, reducing the chance of resource wastage. However, it requires careful management to avoid issues like memory leaks and dangling pointers.
Chapter: 24
Question 2:
What could happen if a program continuously allocates memory without freeing it?
Answer: If a program continuously allocates memory without freeing it, it could exhaust the available heap memory, leading to a system crash or the program being unable to allocate more memory.
Chapter: 24
Question 3:
What is the importance of setting a freed pointer to NULL?
Answer: Setting a freed pointer to NULL prevents it from becoming a dangling pointer, allowing the program to safely check whether the pointer is still valid before using it.
Chapter: 24
Question 4:
How can you find the maximum available memory on the heap?
Answer: You can find the maximum available memory on the heap by repeatedly allocating memory in increasing sizes until the allocation fails, freeing the memory after each allocation.
Chapter: 24
Question 5:
What should be done before a program exits to ensure proper memory management?
Answer: Before a program exits, it should ensure that all dynamically allocated memory has been freed, and pointers to freed memory should be set to NULL to prevent dangling pointers.
Chapter: 24
Question 6:
How can you ensure efficient disk access when copying a file using dynamic memory allocation?
Answer: By allocating a large enough chunk of memory to hold the entire file, you can minimize the number of disk reads and writes, thereby improving the efficiency of file copying operations.
Chapter: 25
Question 7:
What was the primary focus of the traditional programming approach discussed earlier in the course?
Answer: The traditional programming approach focused on a top-down methodology using C/C++, where the emphasis was on breaking problems into smaller modules or functions.
Chapter: 25
Question 8:
Which languages were primarily discussed in the context of traditional programming?
Answer: The course primarily discussed C language, with some C++ functions like cin and cout used instead of C’s printf() and scanf().
Chapter: 25
Question 9:
What is the main topic that the lecture series will focus on after traditional programming?
Answer: The lecture series will focus on C++ and its features, though it will not cover Object-Oriented Programming.
Chapter: 25
Question 10:
When was the C language developed and by whom?
Answer: C language was developed in the 1970s by scientists at Bell Labs.