Memory Management Concepts Quiz

What must be done for a program to be run?

• It must be brought into memory and placed within a process.

• It must be compiled first.

• It must be stored on disk.

What is the role of the Memory-Management Unit (MMU)?

• It maps virtual to physical addresses.

• It stores data temporarily.

• It compiles programs.

What is external fragmentation?

• Total memory space exists to satisfy a request, but it is not contiguous.

• Allocated memory may be slightly larger than requested memory.

• Memory is completely utilized.

What is the purpose of base and limit registers?

• To define the logical address space of a process.

• To store data temporarily.

• To manage CPU operations.

What happens during dynamic loading?

• The entire program does not need to be in memory to execute.

• All routines are loaded at once.

• Memory is allocated statically.

What is the difference between logical and physical addresses?

• Logical addresses are generated by the CPU, while physical addresses are seen by the memory unit.

• They are the same in all address-binding schemes.

• Physical addresses are generated by the CPU.

What is the first-fit allocation method?

• Allocate the first hole that is big enough.

• Allocate the smallest hole that is big enough.

• Allocate the largest hole.

What is dynamic linking?

• Linking postponed until execution time.

• Linking done at compile time.

• Linking done by the operating system only.

What is the purpose of caches in memory management?

• To sit between main memory and CPU registers.

• To store all data permanently.

• To increase the size of main memory.

What is the role of the operating system in memory management?

• To allocate memory efficiently.

• To compile programs.

• To execute user processes.