Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > A task in a blocked statea)is executableb)is ...
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A task in a blocked state
- a)is executable
- b)is running
- c)must still be placed in the run queues
- d)is waiting for some temporarily unavailable resources
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A task in a blocked statea)is executableb)is runningc)must still be pl...
Understanding the Blocked State in Operating Systems
In the context of operating systems, a task being in a blocked state indicates that it cannot proceed with execution until certain conditions are met. Here’s a detailed explanation of why the correct answer is option 'D'.
What is a Blocked State?
- A task enters a blocked state when it requests resources that are currently unavailable, such as I/O devices or waiting for another task to complete.
- While in this state, the task is not executing or utilizing CPU resources.
Implications of a Blocked State:
- The task is not executable (option A) because it cannot proceed until the required resources are available.
- The task is not running (option B) as it is not actively using the CPU.
- Although it is blocked, the task does not need to be in the run queue (option C), as it cannot be scheduled for execution until it transitions out of the blocked state.
Why Option D is Correct:
- A blocked task is waiting for temporarily unavailable resources. This waiting condition is critical as it allows the operating system to manage resources efficiently.
- Once the required resources become available, the task can transition from the blocked state back into a ready or running state, allowing it to resume execution.
In summary, a blocked task is primarily characterized by its need to wait for resources, which is why option D accurately captures its nature and behavior within an operating system.
In the context of operating systems, a task being in a blocked state indicates that it cannot proceed with execution until certain conditions are met. Here’s a detailed explanation of why the correct answer is option 'D'.
What is a Blocked State?
- A task enters a blocked state when it requests resources that are currently unavailable, such as I/O devices or waiting for another task to complete.
- While in this state, the task is not executing or utilizing CPU resources.
Implications of a Blocked State:
- The task is not executable (option A) because it cannot proceed until the required resources are available.
- The task is not running (option B) as it is not actively using the CPU.
- Although it is blocked, the task does not need to be in the run queue (option C), as it cannot be scheduled for execution until it transitions out of the blocked state.
Why Option D is Correct:
- A blocked task is waiting for temporarily unavailable resources. This waiting condition is critical as it allows the operating system to manage resources efficiently.
- Once the required resources become available, the task can transition from the blocked state back into a ready or running state, allowing it to resume execution.
In summary, a blocked task is primarily characterized by its need to wait for resources, which is why option D accurately captures its nature and behavior within an operating system.
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A task in a blocked statea)is executableb)is runningc)must still be pl...
Waiting or Blocked state is when a process has requested some input/output and is waiting for the resource. So, option (D) is correct.
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