Lesson 3

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What is a thread in computing?

  • A sequence of stored data
  • A type of computer process
  • A unit for allocating system memory
  • A basic unit of CPU utilization (correct)

What is a benefit of multi-threading in an operating system?

  • Increases the complexity of a program
  • Requires more memory than single-threading
  • Slows down the execution of tasks
  • Allows a process to perform more than one task at a time (correct)

What is the difference between concurrency and parallelism?

  • There is no difference; they are the same
  • Concurrency is for single-core CPUs, parallelism is for multi-core CPUs only
  • Concurrency involves task order, parallelism requires tasks to be the same
  • Concurrency is task coordination, parallelism is doing tasks at the same time (correct)

In a multi-threading model, what does the term 'one-to-one mapping' refer to?

<p>Each user-level thread maps to one kernel thread (D)</p> Signup and view all the answers

What is the main difference between user threads and kernel threads?

<p>User threads are managed by the application, kernel threads by the OS (A)</p> Signup and view all the answers

What is a thread pool?

<p>A group of threads pre-created and waiting for tasks. (C)</p> Signup and view all the answers

How is concurrent execution achieved on a single-core system?

<p>By quickly switching between tasks to give the appearance of simultaneous execution (D)</p> Signup and view all the answers

How is thread cancellation achieved in pthreads?

<p>By calling pthread_cancel(). (C)</p> Signup and view all the answers

What is the many-to-many threading model?

<p>Allows many user-level threads to be mapped to many kernel threads. (C)</p> Signup and view all the answers

What does a thread pool in a multi-threaded application do?

<p>Provides a set of initialized threads that stand by to handle tasks. (C)</p> Signup and view all the answers

Flashcards are hidden until you start studying

Related Documents

review question 3.pdf

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser