Memory Management -1

What term is used to describe the region where running processes may be moved when the system is low on memory?

Swap space

Cache space

Kernel space

Virtual space

What are the addresses generated by the CPU when accessing a running process's code and data?

Physical addresses

Kernel addresses

Logical addresses

Swap addresses

What is the main drawback of contiguous memory allocation?

Internal fragmentation

External fragmentation

Page table overhead

Demand paging issues

What is the most common way of allocating memory to processes in modern operating systems?

Contiguous allocation

Segmentation

Paging

Swapping

What is the purpose of a page table in the context of memory management?

External fragmentation

Internal fragmentation

Mapping logical pages to physical frames

CPU cache management

How is logical addressing different from physical addressing in the context of memory management?

Logical addressing involves CPU cache, while physical addressing does not.

Logical addressing uses contiguous memory, while physical addressing uses paging.

Logical addressing is used by the compiler, while physical addressing is used by the CPU.

Logical addressing involves virtual addresses, while physical addressing involves real addresses.

What is the role of the memory management unit (MMU) in the translation of virtual addresses to physical addresses?

Allocating physical frames

Maintaining page tables

Executing CPU instructions

Translating logical addresses

What is the potential issue with demand paging in modern operating systems?

Internal fragmentation

External fragmentation

Page table overhead

Performance penalty during page faults

Which hardware register holds a pointer to the page table of the current process in x86 architecture?

CR3

MMU

PCB

CPU cache

What is the primary function of main memory (RAM) immediately after booting up?

Storage of user data

Execution of kernel instructions

Cache management

Secondary storage allocation

Memory Management -1

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