OS quiz 1

What are the advantages of worst fit memory allocation?

• Higher fragmentation compared to best fit

• Slower allocation times for small processes

• Advantages of worst fit memory allocation include reduced fragmentation and better accommodation for larger processes.

• Increased memory usage due to larger allocations

How does paging help in memory management?

• Paging eliminates the need for virtual memory entirely.

• Paging increases memory fragmentation by using variable-size pages.

• Paging allows efficient memory management by using fixed-size pages, reducing fragmentation, and enabling easier swapping.

• Paging requires all processes to be loaded into physical memory simultaneously.

What are the advantages of worst fit memory allocation?

• Higher fragmentation compared to best fit

• Slower allocation times for small processes

• Advantages of worst fit memory allocation include reduced fragmentation and better accommodation for larger processes.

• Increased memory usage due to larger allocations

What is the purpose of segmentation in memory management?

• Segmentation allows for the division of memory into variable-sized segments based on logical divisions.

• Segmentation is used to allocate fixed-size memory blocks only.

• Segmentation is primarily concerned with CPU scheduling.

• Segmentation does not impact memory allocation strategies.

What are the characteristics of the best fit memory allocation strategy?

• Best fit allocates the largest available block to ensure maximum usage.

• Best fit minimizes wasted space by allocating the smallest available block that fits the request.

• Best fit requires all memory blocks to be of equal size.

• Best fit randomly allocates memory without considering the size of the request.

How does the operating system handle memory fragmentation?

• The operating system only addresses fragmentation in virtual memory.

• The operating system ignores fragmentation as it does not affect performance.

• The operating system increases fragmentation by allocating memory randomly.

• The operating system can use techniques like compaction to reduce fragmentation.

A __________ operating system allows the many users to share the computer simultaneously.

•   Distributed system
• Time – shared
• Process – shared
•    Batch

In __________ several jobs are kept in memory at a time.

• Multiprogramming
•   Spooling
• Job queue
• Multi tasking

All the jobs that enter the system are kept in the _________

• queue
•   job pool
•   job queue
• ready queue

The ____ of a process contains temporary data such as function parameters, return addresses, and local variables.

• text section
• data section
• program counter
• stack