Finals Short Quiz

Question 1

True or False

Executor Service is the basis for Java Executor framework subclasses.

Answer 1

True

Question 2

True or False

ForkJoinPool implements the ExecutorService interface, allowing it to be used within the Java Executor framework.

Answer 2

True

Question 3

True or False

ForkJoinPool can execute runnable and callable tasks.

Answer 3

False

Question 4

True or False

AbstractExecutorService serves as a base for other concrete ExecutorService implementations.

Answer 4

False

Question 5

True or False

The working stealing goal is to minimize the processor core utilization.

Answer 5

False

Question 6

True or False

The WorkQueue deque that implements work-stealing maximizes locking contention

Answer 6

False

Question 7

True or False

Recursive Action – used for computations in which completed actions trigger other actions.

Answer 7

False

Question 8

True or False

In the internal fork-join framework the poll() is called from another worker thread to “steal” a (sub-)task.

Answer 8

True

Question 9

True or False

Fork() does not run the task immediately but instead places it on the work queue.

Answer 9

True

Question 10

True or False

In forkjointask, Fork() arranges to asynchronously execute this task in the appropriate pool.

Answer 10

True