Multitasking and Multithreading Fundamentals

1. What does the term 'starvation' mean in multithreading?

A thread is perpetually denied CPU time due to scheduling priority

A thread consumes all available memory

A thread creates an infinite loop

A thread deletes another thread's data

2. True or False: Thread pools improve performance by reducing the overhead of creating new threads repeatedly.

True

False

3. True or False: A monitor in Java is a mechanism for thread synchronization.

True

False

4. True or False: Kernel-level threads are managed entirely by the application without OS involvement.

True

False

5. True or False: Context switching has zero overhead on the CPU.

True

False

6. True or False: Increasing the number of threads always improves application performance.

True

False

7. True or False: All threads within a process share the same virtual address space.

True

False

Submit

11. What is the primary difference between multitasking and multithreading?

Multitasking involves multiple processes; multithreading involves multiple threads within a single process

Multitasking uses more CPU resources than multithreading

Multithreading only works on single-core processors

Multitasking is faster than multithreading on all systems

12. Which of the following is a characteristic of user-level threads?

They are managed by the application, not the OS kernel

They always run faster than kernel-level threads

They cannot be interrupted by the OS

They require special CPU instructions to function

13. Hyperthreading on Intel processors allows a single CPU core to execute how many threads simultaneously?

Two threads

Four threads

Eight threads

As many as the RAM allows

14. What is a deadlock in multithreading?

A situation where two or more threads wait indefinitely for resources held by each other

When a thread runs out of memory

When the CPU stops processing all threads

When a thread is created but never executed

15. Which scheduling algorithm gives each process or thread a fixed time slice on the CPU?

Round-robin scheduling

First-come, first-served

Priority-based scheduling

Last-in, first-out

16. A mutex (mutual exclusion lock) is used to prevent which of the following?

Multiple threads from accessing a shared resource simultaneously

Threads from being created

CPU overheating during heavy processing

Memory fragmentation in the OS

17. What problem occurs when multiple threads access and modify shared data simultaneously without synchronization?

Race condition

Memory leak

Deadlock

Stack overflow

18. Which of the following best describes a thread?

A lightweight unit of execution within a process

A separate process with its own memory space

A CPU core dedicated to one application

A temporary storage location in RAM

19. What is context switching?

The OS saving and restoring the state of a process or thread when switching execution

Changing the priority level of a running thread

Moving data from RAM to disk storage

Allocating more memory to an active process

20. In a multithreaded application, threads share which of the following resources?

Memory space and file handles

Only the CPU registers

Completely separate memory addresses

Individual stack memory only

Tech+ Multitasking and Multithreading Basics Quiz

1. What does the term 'starvation' mean in multithreading?

2.

What first name or nickname would you like us to use?

2. True or False: Thread pools improve performance by reducing the overhead of creating new threads repeatedly.

3. True or False: A monitor in Java is a mechanism for thread synchronization.

4. True or False: Kernel-level threads are managed entirely by the application without OS involvement.

5. True or False: Context switching has zero overhead on the CPU.

6. True or False: Increasing the number of threads always improves application performance.

7. True or False: All threads within a process share the same virtual address space.

8. The operating system component responsible for deciding which thread runs next is called the ____.

9. A ____ is a synchronization mechanism that allows only one thread to access a critical section at a time.

10. In a multicore system, true parallelism means threads can execute on ____.

11. What is the primary difference between multitasking and multithreading?

12. Which of the following is a characteristic of user-level threads?

13. Hyperthreading on Intel processors allows a single CPU core to execute how many threads simultaneously?

14. What is a deadlock in multithreading?

15. Which scheduling algorithm gives each process or thread a fixed time slice on the CPU?

16. A mutex (mutual exclusion lock) is used to prevent which of the following?

17. What problem occurs when multiple threads access and modify shared data simultaneously without synchronization?

18. Which of the following best describes a thread?

19. What is context switching?

20. In a multithreaded application, threads share which of the following resources?