MCQOPTIONS
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MCQOPTIONS
This section includes 54 Mcqs, each offering curated multiple-choice questions to sharpen your Embedded Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following statements is false ? |
| A. | a process scheduling algorithm is preemptive if the CPU can be forcibly removed from a process |
| B. | time sharing systems generally use preemptive CPU scheduling |
| C. | response time are more predictable in preemptive systems than in non preemptive systems |
| D. | real time systems generally use non-preemptive CPU scheduling |
| Answer» E. | |
| 2. |
System in which many computers are used by only one user to run programs is classified as |
| A. | single user system |
| B. | one time computer |
| C. | one task system |
| D. | single usage system |
| Answer» B. one time computer | |
| 3. |
Better security and easy maintenance are advantages of |
| A. | single user system |
| B. | multi user system |
| C. | micro time system |
| D. | single time system |
| Answer» B. multi user system | |
| 4. |
If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares. C will have ______ percent of the total processor time. |
| A. | 20 |
| B. | 15 |
| C. | 50 |
| D. | none of the mentioned |
| Answer» B. 15 | |
| 5. |
Slower and fewer peripherals are disadvantages of |
| A. | mini system |
| B. | single time system |
| C. | single user system |
| D. | main system |
| Answer» D. main system | |
| 6. |
Fast response of real time processing is considered as its |
| A. | advantage |
| B. | disadvantage |
| C. | characteristic |
| D. | network |
| Answer» B. disadvantage | |
| 7. |
Slow processing and less storage in single user systems are its |
| A. | advantages |
| B. | disadvantages |
| C. | characteristics |
| D. | network functioning |
| Answer» C. characteristics | |
| 8. |
If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares. A will have ______ percent of the total processor time. |
| A. | 20 |
| B. | 15 |
| C. | 50 |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares. B will have ______ percent of the total processor time. |
| A. | 20 |
| B. | 15 |
| C. | 50 |
| D. | none of the mentioned |
| Answer» C. 50 | |
| 10. |
Typical computer system usually includes |
| A. | a keyboard |
| B. | a screen |
| C. | character printer |
| D. | all of above |
| Answer» E. | |
| 11. |
If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares. If a new process D requested 30 shares, the admission controller would : |
| A. | allocate 30 shares to it |
| B. | deny entry to D in the system |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| 12. |
Network between computers and terminal is considered as requirement of |
| A. | set of software |
| B. | process steps |
| C. | hardware requirement |
| D. | communication network |
| Answer» E. | |
| 13. |
Type of processor in which single task of a particular application is process is termed as |
| A. | real time processor |
| B. | dedicated processor |
| C. | applicant processor |
| D. | one task processor |
| Answer» C. applicant processor | |
| 14. |
Controlled system of pipelines and pumping stations at regular interval is an example of computer which is |
| A. | applicant controlled |
| B. | user controlled |
| C. | machine controlled |
| D. | network controlled |
| Answer» E. | |
| 15. |
Consideration of storage, input and output devices are considered as requirement of |
| A. | hardware requirement |
| B. | communication requirement |
| C. | software requirement |
| D. | process requirement |
| Answer» B. communication requirement | |
| 16. |
System which processes data instructions without any delay is classified as |
| A. | real time system |
| B. | online system |
| C. | offline system |
| D. | instruction system |
| Answer» B. online system | |
| 17. |
Designing of system take into considerations of |
| A. | hardware |
| B. | communication system |
| C. | operating system |
| D. | all of above |
| Answer» E. | |
| 18. |
Use of robot by car manufacturing companies is an example of |
| A. | machine controlled computers |
| B. | network controlled computers |
| C. | applicant controlled computers |
| D. | user controlled computers |
| Answer» B. network controlled computers | |
| 19. |
_______ OS pays more attention on the meeting of the time limits. |
| A. | Distributed |
| B. | Network |
| C. | Real time |
| D. | Online |
| Answer» D. Online | |
| 20. |
Real time systems are ________. |
| A. | Primarily used on mainframe computers |
| B. | Used for monitoring events as they occur |
| C. | Used for program development |
| D. | Used for real time interactive users |
| Answer» C. Used for program development | |
| 21. |
In ______ OS, the response time is very critical. |
| A. | Multitasking |
| B. | Batch |
| C. | Online |
| D. | Real-time |
| Answer» E. | |
| 22. |
The basic types of OS are ................... |
| A. | batch and time sharing |
| B. | sequential and real time |
| C. | direct and interactive |
| D. | batch and interactive |
| Answer» E. | |
| 23. |
Which file type of the Linux hold lists of files rather than the actual data? |
| A. | regular |
| B. | special |
| C. | directories |
| D. | named pipes |
| Answer» D. named pipes | |
| 24. |
Which process defines the allocation of the mass storage to the logical file system? |
| A. | mounting |
| B. | de-allocation |
| C. | demounting |
| D. | unmounting |
| Answer» B. de-allocation | |
| 25. |
Which commands can be used to access the removable media? |
| A. | system calls |
| B. | loop instruction |
| C. | mount and unmount command |
| D. | procedure commands |
| Answer» D. procedure commands | |
| 26. |
Which target directory is used in the file system of the Linux operating system? |
| A. | /mnt |
| B. | /etc |
| C. | /term |
| D. | /bin |
| Answer» B. /etc | |
| 27. |
Which can control memory usage? |
| A. | operating system |
| B. | applications |
| C. | hardware |
| D. | kernel |
| Answer» E. | |
| 28. |
What is the full form of RMS in Real time Operating systems? |
| A. | rate monotonic scheduling |
| B. | rate machine scheduling |
| C. | rate monotonic software |
| D. | rate machine software |
| Answer» B. rate machine scheduling | |
| 29. |
Which of the following task swapping method is a better choice in the embedded systems design? |
| A. | RMS |
| B. | pre-emptive |
| C. | cooperative multitasking |
| D. | time slice |
| Answer» C. cooperative multitasking | |
| 30. |
Which filesystem of the Linux can be implemented on a system with two hard disks? |
| A. | logical file system |
| B. | physical file system |
| C. | special file type system |
| D. | regular file type system |
| Answer» B. physical file system | |
| 31. |
What do HAL stand for? |
| A. | hardware abstraction layer |
| B. | hardware address layer |
| C. | hardware access layer |
| D. | hardware address lead |
| Answer» B. hardware address layer | |
| 32. |
What is the full form of FAT in Real time Operating systems? |
| A. | file address table |
| B. | file access table |
| C. | file arbitrary table |
| D. | file allocation table |
| Answer» E. | |
| 33. |
Which can provide more memory than physical memory? |
| A. | real memory |
| B. | physical address |
| C. | virtual memory |
| D. | segmented address |
| Answer» D. segmented address | |
| 34. |
Which file type of Linux is similar to the regular file type? |
| A. | named pipe |
| B. | directories |
| C. | regular file |
| D. | special file |
| Answer» B. directories | |
| 35. |
Who started Linux first as a personal project? |
| A. | Linus Torvalds |
| B. | Ken Thompson |
| C. | Dennis Ritchie |
| D. | John Dell |
| Answer» B. Ken Thompson | |
| 36. |
Which can provide efficient downloading and debugging communication between the host and target system? |
| A. | pSOS+ |
| B. | pSOS+ kernel |
| C. | pHILE+ file system |
| D. | pNA+ network manager |
| Answer» E. | |
| 37. |
What is the full form of LPC in Real time Operating systems? |
| A. | local procedure call |
| B. | local program call |
| C. | local program code |
| D. | local procedure code |
| Answer» B. local program call | |
| 38. |
Which can be considered as the lower level in the multitasking operating system? |
| A. | process |
| B. | task |
| C. | threads |
| D. | multi threads |
| Answer» D. multi threads | |
| 39. |
Which can control the memory sharing between the tasks? |
| A. | kernel |
| B. | application |
| C. | software |
| D. | OS |
| Answer» B. application | |
| 40. |
Which of the following uses a swap file to provide the virtual memory? |
| A. | windows NT |
| B. | kernel |
| C. | memory |
| D. | memory management unit |
| Answer» B. kernel | |
| 41. |
What is the full form of MULTICS in Real time Operating systems? |
| A. | multiplexed information and computing service |
| B. | multiplexed information and code service |
| C. | multiplexed inter-access code service |
| D. | multiplexed inter-code sensor |
| Answer» B. multiplexed information and code service | |
| 42. |
What is the worst case figure for interrupt latency for an MC68020 running at 25MHz? |
| A. | 19 microseconds |
| B. | 6 microseconds |
| C. | 20 microseconds |
| D. | 8 microseconds |
| Answer» C. 20 microseconds | |
| 43. |
How many types of Linux files are typically used? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 44. |
Which file type of Linux has no restriction on size and can have any kind of data? |
| A. | special |
| B. | regular |
| C. | directories |
| D. | named pipes |
| Answer» C. directories | |
| 45. |
What is the full form of HPFS in Real time Operating systems? |
| A. | high performance file system |
| B. | high periodic file system |
| C. | high peripheral file system |
| D. | horse power file system |
| Answer» B. high periodic file system | |
| 46. |
Which of the following is the first widely used operating system? |
| A. | MS-DOS |
| B. | windows XP |
| C. | android |
| D. | CP/M |
| Answer» E. | |
| 47. |
Which of the following works by dividing the processor's time? |
| A. | single task operating system |
| B. | multitask operating system |
| C. | kernel |
| D. | applications |
| Answer» C. kernel | |
| 48. |
Which of the following becomes a limiting factor while an application program has to be complete? |
| A. | memory |
| B. | peripheral |
| C. | input |
| D. | output |
| Answer» B. peripheral | |
| 49. |
Which filesystem of Linux has mass storage devices? |
| A. | physical file system |
| B. | temporary file system |
| C. | ram |
| D. | register |
| Answer» B. temporary file system | |
| 50. |
Which of the following is an example of a single task operating system? |
| A. | android |
| B. | windows |
| C. | IOS |
| D. | CP/M |
| Answer» E. | |