Quiz on Multiprocessing and Multitasking

What is referred to as multiprocessing?

• The ability to execute multiple processes simultaneously

• The ability to hold multiple processes in memory

• The ability to switch between tasks rapidly

• The ability to have multiple programs ready for execution

What are multiprocessor systems capable of?

• Executing multiple processes simultaneously

• Holding multiple programs in memory

• Switching between tasks rapidly

• Running a single process at a time

What does multitasking refer to?

• The ability to hold multiple processes in memory

• The ability to execute multiple processes simultaneously

• The ability to have multiple programs ready for execution

• The ability to switch between tasks rapidly

What is context switching?

• Switching of execution context from one task to another

• Saving the current context of execution

• Retrieving the context of the task to be executed

• All of the above

What is the difference between multiprocessing and multitasking?

• Multiprocessing is true simultaneous execution, while multitasking is the illusion of simultaneous execution

• Multiprocessing involves context switching, while multitasking does not

• Multiprocessing can only occur on single CPU systems

• There is no difference

What is co-operative multitasking?

• Tasks voluntarily relinquish the CPU

• The OS can force a running task to stop

• Tasks run until they terminate

• Tasks are preempted based on priority

What is preemptive multitasking?

• Tasks run until they terminate

• The OS can force a running task to stop

• Tasks voluntarily relinquish the CPU

• Tasks are executed based on their priority

What is a thread?

• A single sequential flow of control within a process

• A program in execution

• A lightweight process

• Both A and C

What is a hard real-time system?

• A system that meets strict timing constraints

• A system that does not guarantee meeting deadlines

• A system that can tolerate missing deadlines

• A system that allows human interaction

What is a soft real-time system?

• A system that guarantees meeting deadlines

• A system that does not guarantee meeting deadlines

• A system that is used in critical applications

• A system that avoids human interaction