MCQOPTIONS
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MCQOPTIONS
This section includes 20 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. |
Which error occurs when the designated start and stop bits are not found? |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Break condition |
| Answer» D. Break condition | |
| 2. |
Which error occurs when UART transmitter has completed sending a character and the transmit buffer is empty? |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Break condition |
| Answer» C. Framing error | |
| 3. |
What is the speed of the 8250 UART? |
| A. | 4800bits/sec |
| B. | 1200bits/sec |
| C. | 12000bit/sec |
| D. | 9600bits/sec |
| Answer» E. | |
| 4. |
What is WD1402A? |
| A. | SPI |
| B. | USART |
| C. | SPIUART |
| D. | I2C |
| Answer» D. I2C | |
| 5. |
Which error occurs when the receiver can’t process the character? |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Break condition |
| Answer» B. Underrun error | |
| 6. |
WHAT_IS_WD1402A??$ |
| A. | SPI |
| B. | USART |
| C. | SPIUART |
| D. | I2C |
| Answer» D. I2C | |
| 7. |
Which error occurs when UART transmitter has completed sending a character and the transmit buffer is empty?$ |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Break condition |
| Answer» C. Framing error | |
| 8. |
What_is_the_speed_of_the_8250_UART?$ |
| A. | 4800bits/sec |
| B. | 1200bits/sec |
| C. | 12000bit/sec |
| D. | 9600bits/sec |
| Answer» E. | |
| 9. |
The term break derives from ___________ signaling. |
| A. | Current loop |
| B. | Voltage loop |
| C. | Power loop |
| D. | Current and Power loop |
| Answer» B. Voltage loop | |
| 10. |
A __________ occurs when the receiver input is at the space level. |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Break condition |
| Answer» E. | |
| 11. |
Which error occurs when the parity of the number of 1 bit disagrees with that specified by the parity bit? |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Parity error |
| Answer» E. | |
| 12. |
Which_error_occurs_when_the_designated_start_and_stop_bits_are_not_found? |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Break condition |
| Answer» D. Break condition | |
| 13. |
Which error occurs when the receiver can’t process the character?# |
| A. | Overrun error |
| B. | Underrun error |
| C. | Framing error |
| D. | Break condition |
| Answer» B. Underrun error | |
| 14. |
Start bit of UART is logic high. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
Communication in UART is ___________ |
| A. | Only simple |
| B. | Only duplex |
| C. | Only full duplex |
| D. | Simplex, half duplex, full duplex |
| Answer» E. | |
| 16. |
What does UART contain? |
| A. | Parallel register |
| B. | Shift register |
| C. | Clock |
| D. | Parallel shift register |
| Answer» C. Clock | |
| 17. |
UART is similar to _________ |
| A. | SPI protocol |
| B. | I2C protocol |
| C. | HTTP protocol |
| D. | MQTT protocol |
| Answer» C. HTTP protocol | |
| 18. |
RS232 is used for long range wired communication. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 19. |
Finger print sensor uses which interface? |
| A. | USART protocol |
| B. | UART protocol |
| C. | SPI protocol |
| D. | I2C protocol |
| Answer» C. SPI protocol | |
| 20. |
GPS module like SIM900/800 uses which protocol? |
| A. | UART protocol |
| B. | USART protocol |
| C. | SPI protocol |
| D. | I2C protocol |
| Answer» B. USART protocol | |