Java Multithreading and Concurrency Competency (Intermediate Level)

  • 15m
  • 15 questions
The Java Multithreading and Concurrency Competency (Intermediate Level) benchmark evaluates your ability to synchronize concurrent threads operating on common resources using the synchronization mechanisms available in Java. You will be evaluated on your skills in implementing different synchronization mechanisms in Java to solve the producer-consumer problem. The learners who score high on this benchmark demonstrate that they have the skills to work with thread synchronization and lock and solve the producer-consumer problem.

Topics covered

  • configure a thread to wait on a resource for a limited amount of time by using the tryLock() method of a ReentrantLock
  • define a producer task that can run concurrently with a consumer using a shared queue
  • differentiate between synchronized functions and synchronized blocks in Java
  • distinguish between a readLock and writeLock for a Java StampedLock
  • identify some of the options available to prevent the occurrence of deadlocks
  • implement a solution to the Producer-Consumer problem using Java's built-in ArrayBlockingQueue
  • implement a StampedLock to regulate access to a shared resource
  • implement synchronized functions to manage multiple threads updating the same resource
  • introduce a ReentrantLock in your program to enable exclusive access to a shared resource
  • recall the conditions under which concurrent threads could encounter a deadlock in Java
  • recognize the behavior of producer and consumer threads when working with a shared bounded buffer
  • recognize the role of conditions in enabling different threads to wait on different conditions on the same object
  • recognize the situations where a race condition could occur in Java
  • use a ReentrantLock to access the shared queue for the Producer-Consumer problem
  • verify the validity of a solution to the Producer-Consumer problem with multiple producer and consumer threads