MCQOPTIONS
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MCQOPTIONS
This section includes 20 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 mode of the Intel 8253 timer can generate a square wave? |
| A. | mode 1 |
| B. | mode 2 |
| C. | mode 3 |
| D. | mode 4 |
| Answer» E. | |
| 2. |
Which of the following are interfaced as the outputs to the parallel ports? |
| A. | keyboards |
| B. | switches |
| C. | LEDs |
| D. | knobs |
| Answer» D. knobs | |
| 3. |
What is the full form of SPI in Basic Peripherals? |
| A. | serial parallel interface |
| B. | serial peripheral interface |
| C. | sequential peripheral interface |
| D. | sequential port interface |
| Answer» C. sequential peripheral interface | |
| 4. |
What is the full form of UART in Basic Peripherals? |
| A. | universal asynchronous receiver transmitter |
| B. | unique asynchronous receiver transmitter |
| C. | universal address receiver transmitter |
| D. | unique address receiver transmitter |
| Answer» B. unique asynchronous receiver transmitter | |
| 5. |
Which of the following is used to reset the device in 8250? |
| A. | MR |
| B. | DDIS |
| C. | INTR |
| D. | RCLK |
| Answer» B. DDIS | |
| 6. |
Which is used to prioritise multiple requests? |
| A. | dual address mode |
| B. | single address mode |
| C. | arbitration |
| D. | chaining |
| Answer» D. chaining | |
| 7. |
Which of the following method is used by Apple Macintosh? |
| A. | hardware handshaking |
| B. | software handshaking |
| C. | no handshaking |
| D. | null modem cable |
| Answer» C. no handshaking | |
| 8. |
Which of the following is an ideal interface for LCD controllers? |
| A. | SPI |
| B. | parallel port |
| C. | Serial port |
| D. | M-Bus |
| Answer» E. | |
| 9. |
A packet is also referred to as |
| A. | postcard |
| B. | telegram |
| C. | letter |
| D. | data |
| Answer» C. letter | |
| 10. |
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 | |
| 11. |
What is the full form of I2C in Basic Peripherals? |
| A. | inter-IC |
| B. | intra-IC |
| C. | individual integrated chip |
| D. | intel IC |
| Answer» B. intra-IC | |
| 12. |
How much time period is necessary for the slave to receive the interrupt and transfer the data? |
| A. | 4 clock time period |
| B. | 8 clock time period |
| C. | 16 clock time period |
| D. | 24 clock time period |
| Answer» C. 16 clock time period | |
| 13. |
Which of the following is also known as implicit address? |
| A. | dual address model |
| B. | single address model |
| C. | 1D model |
| D. | 2D model |
| Answer» C. 1D model | |
| 14. |
Which of the following has a quadruple buffered receiver and a double buffered transmitter? |
| A. | Intel 8250 |
| B. | 16450 |
| C. | 16550 |
| D. | MC68681 |
| Answer» E. | |
| 15. |
Which of the following indicates the type of operation that the master requests? |
| A. | address value |
| B. | initial value |
| C. | terminal count |
| D. | first byte |
| Answer» B. initial value | |
| 16. |
Which of the following can be described as general-purpose? |
| A. | multifunction I/O port |
| B. | input port |
| C. | dma port |
| D. | output port |
| Answer» B. input port | |
| 17. |
Which signal allows the DMA controller to select the peripheral? |
| A. | local peripheral control |
| B. | global peripheral control |
| C. | address bus |
| D. | data bus |
| Answer» B. global peripheral control | |
| 18. |
Which of the following combine an MC68000/MC68020 type of processor with peripheral and DMA controllers? |
| A. | Intel 8237 |
| B. | Intel 8253 |
| C. | MC68300 |
| D. | MC68000 |
| Answer» D. MC68000 | |
| 19. |
Which of the signal can control bus arbitration logic in 8250? |
| A. | MR |
| B. | DDIS |
| C. | INTR |
| D. | RCLK |
| Answer» C. INTR | |
| 20. |
Which ports are used in the multi-master system to avoid errors? |
| A. | unidirectional port |
| B. | bidirectional port |
| C. | multi directional port |
| D. | tridirectional port |
| Answer» C. multi directional port | |