MCQOPTIONS
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MCQOPTIONS
This section includes 24 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 byte performs the slave selection? |
| A. | first byte |
| B. | second byte |
| C. | terminal byte |
| D. | eighth byte |
| Answer» B. second byte | |
| 2. |
UCB0RXIFG is set when ________ |
| A. | complete byte is acknowledged |
| B. | complete byte is transmitted |
| C. | complete byte is received |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
How is I2C with USI different from I2C with USI_B? |
| A. | there is only one common pin between the two devices |
| B. | here in this case no synchronization is important |
| C. | the outputs of SDA and SCL are open drain |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 4. |
The I2C bus uses which of the following lines? |
| A. | CLK |
| B. | MISO |
| C. | SDA |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 5. |
A_PACKET_IS_ALSO_REFERRED_TO_AS?$ |
| A. | postcard |
| B. | telegram |
| C. | letter |
| D. | data |
| Answer» C. letter | |
| 6. |
HOW_IS_I2C_WITH_USI_DIFFERENT_FROM_I2C_WITH_USI_B??$ |
| A. | there is only one common pin between the two devices |
| B. | here in this case no synchronization is important |
| C. | the outputs of SDA and SCL are open drain |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 7. |
Which of the following byte performs the slave selection?$ |
| A. | first byte |
| B. | second byte |
| C. | terminal byte |
| D. | eighth byte |
| Answer» B. second byte | |
| 8. |
UCB0RXIFG_is_set_when_________$ |
| A. | complete byte is acknowledged |
| B. | complete byte is transmitted |
| C. | complete byte is received |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
Which of the following are handshake signals? |
| A. | START |
| B. | STOP |
| C. | ACKNOWLEDGE |
| D. | START and STOP |
| Answer» D. START and STOP | |
| 10. |
Is baud rate selected in I2C? |
| A. | yes |
| B. | no |
| C. | cant be said |
| D. | depends on the conditions |
| Answer» B. no | |
| 11. |
Which of the following performs the START signal? |
| A. | master |
| B. | slave |
| C. | CPU |
| D. | memory |
| Answer» B. slave | |
| 12. |
Which of the following is the slave to be addressed when a device acts as a master? |
| A. | UCB0I2COA |
| B. | UCB0I2CSA |
| C. | UCB0I2CIE |
| D. | All of the mentioned |
| Answer» C. UCB0I2CIE | |
| 13. |
Which of the following are the three hardware signals? |
| A. | START, STOP, ACKNOWLEDGE |
| B. | STOP, TERMINATE, END |
| C. | START, SCL, SDA |
| D. | STOP, SCL, SDA |
| Answer» B. STOP, TERMINATE, END | |
| 14. |
Which of the following is an issue while programming I2C using the software? |
| A. | open-collector output |
| B. | open-drain output |
| C. | totem pole output |
| D. | all of the mentioned |
| Answer» C. totem pole output | |
| 15. |
Which pin provides the reference clock for the transfer of data? |
| A. | SDA |
| B. | SCL |
| C. | SPDR |
| D. | Interrupt pin |
| Answer» C. SPDR | |
| 16. |
Rising edge on SDA while SCL is high denotes __________ |
| A. | start condition (S) |
| B. | stop condition (P) |
| C. | transfer in progress |
| D. | none of the mentioned |
| Answer» C. transfer in progress | |
| 17. |
Which of the following developed P82B715? |
| A. | Philips |
| B. | Intel |
| C. | IBM |
| D. | Motorola |
| Answer» B. Intel | |
| 18. |
Pull-up resistors Rp keep the lines at VCC when _____________ |
| A. | all the drivers are active |
| B. | none of the drivers are active |
| C. | some the drivers are at sleep |
| D. | none of the drivers is at sleep |
| Answer» C. some the drivers are at sleep | |
| 19. |
Which are the two lines used in the I2C? |
| A. | SDA and SPDR |
| B. | SPDR and SCL |
| C. | SDA and SCL |
| D. | SCL and status line |
| Answer» D. SCL and status line | |
| 20. |
Each slave has its unique address. |
| A. | true |
| B. | false |
| C. | cant be said |
| D. | depends on the conditions |
| Answer» B. false | |
| 21. |
Which of the following is the most known simple interface? |
| A. | I2C |
| B. | Serial port |
| C. | Parallel port |
| D. | SPI |
| Answer» B. Serial port | |
| 22. |
I2C is a faster means of data transfer than SPI? |
| A. | yes |
| B. | no |
| C. | depends on the conditions |
| D. | cant be said |
| Answer» C. depends on the conditions | |
| 23. |
Which company developed I2C? |
| A. | Intel |
| B. | Motorola |
| C. | Phillips |
| D. | IBM |
| Answer» D. IBM | |
| 24. |
What is the full form of I2C in I2C? |
| A. | inter-IC |
| B. | intra-IC |
| C. | individual integrated chip |
| D. | intel IC |
| Answer» B. intra-IC | |