Memory Management Quiz

What is the functionality of memory management in an operating system?

• Managing the input/output devices

• Managing the processor utilization

• Managing the secondary memory

• Managing the primary memory

Which type of addresses are used in a program before memory allocation?

• Virtual addresses

• Physical addresses

• Relative addresses

• Symbolic addresses

What is a frame in memory management?

• A fixed-length block of main memory

• A fixed-length block of secondary memory

• A variable-length block of data

• A mechanism for swapping processes

What is swapping in memory management?

• Updating the memory status

• Temporarily moving a process out of main memory to secondary memory

• Temporarily moving a process out of secondary memory to main memory

• Allocating memory for a process

What is external fragmentation in memory management?

• Occurs when processes are continuously loaded and removed

• Occurs when processes cannot be allocated to memory blocks

• Occurs when the allotted memory blocks are of fixed size

• Occurs when the allotted memory blocks are of varying sizes

What is the requirement of memory management related to relocation?

• Programs may be moved within the main memory due to swapping

• Each process should be protected against unwanted interference

• Processes should be able to access the same portion of the main memory

• Computer hardware should effectively manage user programs and data

What is the main characteristic of virtual memory?

• Supports multitasking

• Supports oversubscription of the main memory

• Maps virtual memory to real memory only on demand

• Is a real memory

What is the main advantage of using simple paging in memory management?

• Plays an important role in implementing virtual memory

• Reduces external fragmentation

• Encompasses a large virtual address space

• Causes a small amount of internal fragmentation

What is the drawback of using simple segmentation in memory management?

• Reduced overhead

• No internal fragmentation

• Improved memory utilization

• External fragmentation

What is the purpose of dynamic partitioning in memory management?

• To load each process into a partition of exactly the same size

• To divide the memory into a number of equally sized frames

• To choose the block that is closest to the requested size

• To create static partitions at system generation time