MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Operating System knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IN_POLLING_:?$ |
| A. | busy – wait cycles wait for I/O from device |
| B. | interrupt handler receives interrupts |
| C. | interrupt-request line is triggered by I/O device |
| D. | all of the mentioned |
| Answer» B. interrupt handler receives interrupts | |
| 2. |
An asynchronous call :$ |
| A. | returns immediately, without waiting for the I/O to complete |
| B. | does not return immediately and waits for the I/O to complete |
| C. | consumes a lot of time |
| D. | is too slow |
| Answer» B. does not return immediately and waits for the I/O to complete | |
| 3. |
A non blocking system call _________________$ |
| A. | halts the execution of the application for an extended time |
| B. | does not halt the execution of the application |
| C. | does not block the interrupts |
| D. | none of the mentioned |
| Answer» C. does not block the interrupts | |
| 4. |
A keyboard is an example of a device that is accessed through a __________ interface? |
| A. | block stream |
| B. | set of blocks |
| C. | character stream |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |