Match the columns.

Match List - I with List - II:

Choose the correct answer from the options given below:

Correct option is A

1. Activation Record (A):
· Related to Subroutine Call.
· An activation record stores information about function calls, such as return addresses and local variables.
· Matches with (III).
2. Location Counter (B):
· Used in an Assembler to track the memory locations being assigned to instructions and data.
· Matches with (IV).
3. Reference Count (C):
· Used in Garbage Collection to track how many references point to a memory object. When the count reaches zero, the object can be deallocated.
· Matches with (II).
4. Address Relocation (D):
· Performed by a Linking Loader to adjust addresses in a program so it can execute in the memory.
· Matches with (I).
Step 2: Match the Options
(A - III, B - IV, C - II, D - I)
Information Booster
1. Activation Record:
· Stores information for function or procedure calls, including parameters, local variables, and return addresses.
· Plays a crucial role in stack-based memory allocation.
2. Location Counter: A special register in the assembler that keeps track of the memory address of the current instruction or data.
3. Reference Count: Used in memory management techniques like garbage collection to ensure efficient memory utilization.
4. Address Relocation: Adjusts program addresses during the linking or loading phase to resolve relative or absolute memory references.
Additional Knowledge
· Assembler: Converts assembly language to machine code and uses location counters for memory allocation.
· Linking Loader: Combines multiple object files into a single executable and resolves address references.
· Garbage Collection: Automatically manages memory by freeing up unused objects to prevent memory leaks.