MCQOPTIONS
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MCQOPTIONS
This section includes 30 Mcqs, each offering curated multiple-choice questions to sharpen your Internet of things (IoT) knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
__________ is a predecessor of SPI. |
| A. | Queued SPI |
| B. | Microwire |
| C. | Microwire/plus |
| D. | Quad SPI |
| Answer» C. Microwire/plus | |
| 2. |
Which of the following is the disadvantage in SPI? |
| A. | Full duplex communication |
| B. | Push pull drivers |
| C. | Unidirectional signals |
| D. | More pins |
| Answer» E. | |
| 3. |
Which of the following is an advantage of SPI? |
| A. | No start and stop bits |
| B. | Use 4 wires |
| C. | Allows for single master |
| D. | Error checking is not present |
| Answer» B. Use 4 wires | |
| 4. |
MISO means _________ |
| A. | Line for master to send data to the slave |
| B. | Line for the slave to send data to the master |
| C. | Line for the clock signal |
| D. | Line for the master to select which slave to send data to |
| Answer» C. Line for the clock signal | |
| 5. |
To select the value of the clock to be fosc/16, what are the appropriate values? |
| A. | SPI2X= 0, SPR1= 0, SPR0=1 |
| B. | SPI2X= 0, SPR1= 1, SPR0=0 |
| C. | SPI2X= 1, SPR1= 1, SPR0=0 |
| D. | SPI2X= 0, SPR1= 1, SPR0=1 |
| Answer» B. SPI2X= 0, SPR1= 1, SPR0=0 | |
| 6. |
Which frequency is not recommended for SPI clock? |
| A. | fosc/4 |
| B. | fosc/64 |
| C. | fosc/16 |
| D. | fosc/2 |
| Answer» E. | |
| 7. |
Why do we make the connection of the SCLK for communicating serially between two devices? |
| A. | to get a clock output from the device |
| B. | to synchronize the two devices |
| C. | to obtain an analog output |
| D. | all of the mentioned |
| Answer» C. to obtain an analog output | |
| 8. |
WHICH_OF_THE_FOLLOWING_IS_THE_DISADVANTAGE_IN_SPI??$ |
| A. | Full duplex communication |
| B. | Push pull drivers |
| C. | Unidirectional signals |
| D. | More pins |
| Answer» E. | |
| 9. |
WHICH_FREQUENCY_IS_NOT_RECOMMENDED_FOR_SPI_CLOCK??$ |
| A. | fosc/4 |
| B. | fosc/64 |
| C. | fosc/16 |
| D. | fosc/2 |
| Answer» E. | |
| 10. |
WHICH_OF_THE_FOLLOWING_IS_AN_ADVANTAGE_OF_SPI??$ |
| A. | No start and stop bits |
| B. | Use 4 wires |
| C. | Allows for single master |
| D. | Error checking is not present |
| Answer» B. Use 4 wires | |
| 11. |
Which of the following is the type of SPI controller?$ |
| A. | Queued SPI |
| B. | Microwire |
| C. | Microwire/plus |
| D. | Quad SPI |
| Answer» B. Microwire | |
| 12. |
To_select_the_value_of_the_clock_to_be_fosc/16,_what_are_the_appropriate_values?$ |
| A. | SPI2X= 0, SPR1= 0, SPR0=1 |
| B. | SPI2X= 0, SPR1= 1, SPR0=0 |
| C. | SPI2X= 1, SPR1= 1, SPR0=0 |
| D. | SPI2X= 0, SPR1= 1, SPR0=1 |
| Answer» B. SPI2X= 0, SPR1= 1, SPR0=0 | |
| 13. |
SMBUS stands for ___________ |
| A. | Serial Memory Bus |
| B. | Serial Management Bus |
| C. | System Management Bus |
| D. | System Memory Bus |
| Answer» D. System Memory Bus | |
| 14. |
Do SPI have internal flash? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
Which has a half duplex communication? |
| A. | Queued SPI |
| B. | Microwire |
| C. | Microwire/plus |
| D. | Quad SPI |
| Answer» C. Microwire/plus | |
| 16. |
___________is_a_predecessor_of_SPI. |
| A. | Queued SPI |
| B. | Microwire |
| C. | Microwire/plus |
| D. | Quad SPI |
| Answer» C. Microwire/plus | |
| 17. |
SPI can act as a half duplex transmission? |
| A. | true |
| B. | false |
| C. | depends on the conditions |
| D. | can’t be said |
| Answer» C. depends on the conditions | |
| 18. |
MISO means ________? |
| A. | Line for master to send data to the slave |
| B. | Line for the slave to send data to the master |
| C. | Line for the clock signal |
| D. | Line for the master to select which slave to send data to |
| Answer» C. Line for the clock signal | |
| 19. |
How do we set the SPI, to operate in the master mode 1? |
| A. | We set the MSTR bit, and make the CPOL= 1 and CPHA=0 |
| B. | We set the MSTR bit, and make the CPOL= 0 and CPHA=1 |
| C. | We reset the MSTR bit, and make the CPOL= 1 and CPHA=0 |
| D. | We reset the MSTR bit, and make the CPOL= 0 and CPHA=1 |
| Answer» C. We reset the MSTR bit, and make the CPOL= 1 and CPHA=0 | |
| 20. |
MOSI means __________ |
| A. | Line for master to send data to the slave |
| B. | Line for the slave to send data to the master |
| C. | Line for the clock signal |
| D. | Line for the master to select which slave to send data to |
| Answer» B. Line for the slave to send data to the master | |
| 21. |
In AVR, which of the following registers are used for SPI? |
| A. | SPSR |
| B. | SPCR |
| C. | SPDR |
| D. | All of the mentioned |
| Answer» E. | |
| 22. |
SPI uses how many lines? |
| A. | 4 lines |
| B. | 1 line |
| C. | 3 lines |
| D. | 2 lines |
| Answer» E. | |
| 23. |
In SPI write, LSB goes first? |
| A. | true |
| B. | false |
| C. | can’t be said |
| D. | depends on the cases |
| Answer» C. can‚Äö√Ñ√∂‚àö√ë‚àö¬•t be said | |
| 24. |
How many logic signals are there in SPI? |
| A. | 5 signals |
| B. | 6 signals |
| C. | 4 signals |
| D. | 7 signals |
| Answer» B. 6 signals | |
| 25. |
If CPHA= 0 and CPOL=1, then which of the following is true? |
| A. | read on rising edge, changed on a falling edge |
| B. | read on falling edge, changed on a rising edge |
| C. | write on rising edge, changed on a falling edge |
| D. | write on rising edge, changed on a falling edge |
| Answer» C. write on rising edge, changed on a falling edge | |
| 26. |
SPI is described as Asynchronous serial interface. |
| A. | True |
| B. | False |
| Answer» C. | |
| 27. |
Do SPI have/has a single master? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 28. |
What is the function of the CE pin in SPI? |
| A. | it is used for synchronization |
| B. | it is used as a transmitting pin |
| C. | it is used as a receiving pin |
| D. | it is used to initiate and terminate the data transfer |
| Answer» E. | |
| 29. |
SPI device communicates in _________ |
| A. | Simplex |
| B. | Half duplex |
| C. | Full duplex |
| D. | Both half and full duplex |
| Answer» D. Both half and full duplex | |
| 30. |
Secure digital card application uses which protocol? |
| A. | UART |
| B. | SPI |
| C. | I2C |
| D. | USART |
| Answer» C. I2C | |