MCQOPTIONS
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				This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Operating System Questions & Answers I/O System Kernel I/O Subsystems knowledge and support exam preparation. Choose a topic below to get started.
| 1. | 
                                    The kernel data structures include ____________ | 
                            
| A. | process table | 
| B. | open file table | 
| C. | close file table | 
| D. | all of the mentioned | 
| Answer» C. close file table | |
| 2. | 
                                    Spooling ____________ | 
                            
| A. | holds a copy of the data | 
| B. | is fast memory | 
| C. | holds the only copy of the data | 
| D. | holds output for a device | 
| Answer» D. holds output for a device | |
| 3. | 
                                    Caching ____________ | 
                            
| A. | holds a copy of the data | 
| B. | is fast memory | 
| C. | holds the only copy of the data | 
| D. | holds output for a device | 
| Answer» B. is fast memory | |
| 4. | 
                                    Buffering is done to ____________ | 
                            
| A. | cope with device speed mismatch | 
| B. | cope with device transfer size mismatch | 
| C. | maintain copy semantics | 
| D. | all of the mentioned | 
| Answer» E. | |