Multithreading models (one-to-one, many-to-one, many-to-many) in Operating Systems - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the multithreading model where each user thread maps to one kernel thread.

Operating Systems

The [1] model creates a separate kernel thread for each user thread.

Drag options to blanks, or click blank then click option'

Amany-to-one

Bone-to-one

Cmany-to-many

Dsingle-threaded

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing many-to-one with one-to-one because both involve user threads.

Thinking single-threaded is a multithreading model.

The one-to-one model maps each user thread to a unique kernel thread, allowing true parallelism.

2fill in blank

medium

Complete the code to identify the multithreading model where many user threads are mapped to a single kernel thread.

Operating Systems

In the [1] model, multiple user threads are managed by one kernel thread.

Drag options to blanks, or click blank then click option'

Aone-to-one

Bmany-to-many

Cmany-to-one

Dhybrid

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up many-to-one with many-to-many.

Assuming one-to-one means multiple user threads share one kernel thread.

The many-to-one model maps many user threads to a single kernel thread, which can limit concurrency.

3fill in blank

hard

Fix the error in the statement describing the many-to-many model.

Operating Systems

The [1] model maps each user thread to exactly one kernel thread.

Drag options to blanks, or click blank then click option'

Amany-to-many

Bone-to-one

Csingle-threaded

Dmany-to-one

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing many-to-many with one-to-one.

Thinking many-to-many means one user thread per kernel thread.

The many-to-many model allows many user threads to be mapped to many kernel threads, not one-to-one.

4fill in blank

hard

Fill both blanks to describe the limitation of the many-to-one model and the advantage of the one-to-one model.

Operating Systems

The many-to-one model [1] true parallelism, while the one-to-one model [2] it.

Drag options to blanks, or click blank then click option'

Adoes not allow

Ballows

Csupports

Dblocks

Attempts:

3 left

💡 Hint

Common Mistakes

Reversing which model allows parallelism.

Using similar words that confuse the meaning.

The many-to-one model does not allow true parallelism because all user threads share one kernel thread. The one-to-one model allows true parallelism by mapping each user thread to a kernel thread.

5fill in blank

hard

Fill all three blanks to complete the description of the many-to-many model's flexibility and performance.

Operating Systems

The many-to-many model [1] multiple user threads to [2] kernel threads, [3] efficient use of system resources.

Drag options to blanks, or click blank then click option'

Amaps

Bone or more

Callowing

Dblocks

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'blocks' instead of 'allowing' for the last blank.

Confusing the number of kernel threads mapped.

The many-to-many model maps multiple user threads to one or more kernel threads, allowing efficient use of system resources by balancing concurrency and overhead.