Java Multithreading and Parallel Programming Masterclass - Scheduling Tasks with ScheduledThreadPoolExecutor
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of the Scheduled Thread Pool Executor in Java?
To execute tasks immediately without delay
To handle exceptions in threads
To run tasks on a scheduled basis
To manage memory allocation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of the delayed work queue used in the Scheduled Thread Pool Executor?
It is a bounded queue
It is an unbounded queue
It has a fixed capacity
It uses a stack data structure
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if too many tasks are added to the Scheduled Thread Pool Executor?
The tasks are automatically removed
The memory may fill up
The tasks are executed immediately
The tasks are ignored
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the 'schedule' method in the Scheduled Thread Pool Executor work?
It runs a task after a specified delay
It runs a task at a fixed rate
It cancels a task
It runs a task immediately
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between 'schedule' and 'scheduleAtFixedRate' methods?
'schedule' runs tasks periodically, 'scheduleAtFixedRate' runs once
Both methods are used for task cancellation
'schedule' runs once after a delay, 'scheduleAtFixedRate' runs periodically
Both methods run tasks immediately
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'setRemoveOnCancelPolicy' method do?
It adds tasks to the queue
It increases the queue capacity
It removes tasks from the queue when cancelled
It schedules tasks at a fixed rate
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method ensures that delayed tasks are executed after shutdown?
shutdownNow
scheduleAtFixedRate
setRemoveOnCancelPolicy
setExecuteExistingDelayedTasksAfterShutdownPolicy
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