Garbage Collection Process Exam Questions
And Answers 100% Pass.
Which of the following best describes the heap in C#?
A) A stack of method calls
B) A dynamic memory allocation area
C) A fixed-size memory allocation area
D) An area for static variablesB - answer✔B
What is the primary purpose of the garbage collector in relation to the heap?
A) To allocate memory
B) To handle exceptions
C) To free memory occupied by objects that are no longer in use
D) To manage CPU registers - answer✔C
Which of the following objects are stored in the heap?
A) Local variables
B) Static variables
C) Dynamically allocated objects
D) Method parameters - answer✔C
What happens to an object in the heap when it is no longer referenced?
A) It becomes eligible for garbage collection
B) It is immediately deallocated
C) It remains in the heap indefinitely
D) It is moved to the stack - answer✔A
How does the garbage collector determine which objects in the heap are no longer in use?
A) By checking the stack for references
B) By using a reference counting mechanism
C) By using roots to identify reachable objects
D) By scanning the entire memory - answer✔C
What is the difference between the heap and the stack?
A) The heap is used for static allocation, and the stack is used for dynamic allocation.
B) The stack is managed by the programmer, and the heap is managed by the operating system.
C) The heap is limited in size, and the stack is not.
D) The stack is for local variables and method calls, while the heap is for dynamically allocated
objects. - answer✔D
In C#, what is a common method used to explicitly request garbage collection?
A) Memory.Clear()
B) System.Collect()
C) GC.Collect()
D) Heap.Collect() - answer✔C
Which generation in the heap is collected most frequently?
A) Generation 0
B) Generation 1
C) Generation 2
D) Generation 3 - answer✔A
What is the primary goal of heap compaction during garbage collection?
A) To increase the size of the heap
B) To reduce fragmentation and consolidate free memory space
C) To sort objects based on their type
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