SKILL BENCHMARK

Java Multithreading and Concurrency Literacy (Beginner Level)

  • 16m
  • 16 questions
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The Java Multithreading and Concurrency Literacy (Beginner Level) benchmark measures your knowledge of the benefits/risks of concurrent programming and the mechanisms available in the Java programming language to build a multithreaded application. You will be evaluated on your skills in creating and executing multiple concurrent threads in Java. The learners who score high on this benchmark demonstrate that they have the skills to understand Java concurrent programming and work with threads in Java.

Topics covered

  • compare and contrast synchronization using locks with the use of atomic operations on atomic variables
  • describe how synchronization of concurrent threads can be achieved using locks
  • describe the benefits of thread pools when it comes to management of multiple concurrently executing threads
  • describe the mechanism of thread interruption in Java
  • distinguish between multithreading and multi-processing and describe the benefits and drawbacks of each approach
  • distinguish between user and daemon threads in Java
  • identify a sequential execution plan as well as its limitations
  • identify situations where multithreading can be applied to speed up executions
  • identify the different states of a thread and the possible transitions from them
  • identify use cases for semaphores and describe how they can be used
  • list use cases of the Future object in Java and the Fork/Join framework when it comes to executing multiple threads
  • recall Java objects that can be used to enable and simplify working with a multithreaded application
  • recognize a race condition and how this could lead to inconsistent outcomes
  • recognize the effect of the start() method in kicking off Java threads
  • recognize the possible and default values for a Java thread's priority
  • verify whether a thread is active by invoking the isAlive() method