MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
THE_BIT_PACKET_THAT_COMMANDS_THE_DEVICE_EITHER_TO_RECEIVE_DATA_OR_TRANSMIT_DATA_IN_TRANSMISSION_OF_USB_ASYNCHRONOUS_COMMUNICATION_IS?$ |
| A. | Handshake packet |
| B. | Token packet |
| C. | PRE packet |
| D. | Data packet |
| Answer» C. PRE packet | |
| 2. |
High_speed_USB_devices_neglect$ |
| A. | Handshake packet |
| B. | Token packet |
| C. | PRE packet |
| D. | Data packet |
| Answer» D. Data packet | |
| 3. |
The USB supports the signaling rate o? |
| A. | full-speed USB 1.0 at rate of 12 Mbps |
| B. | high-speed USB 2.0 at rate of 480 Mbps |
| C. | super-speed USB 3.0 at rate of 596 Mbps |
| D. | all of the mentioned |
| Answer» E. | |
| 4. |
The disadvantage of RS-232C is |
| A. | limited speed of communication |
| B. | high-voltage level signaling |
| C. | big-size communication adapters |
| D. | all of the mentioned |
| Answer» E. | |
| 5. |
The signal that may be used either to interrupt the CPU or polled by the CPU is |
| A. | TXRDY(Transmitter ready) |
| B. | RXRDY(Receiver ready output) |
| C. | DSR(active low) |
| D. | DTR(active low) |
| Answer» C. DSR(active low) | |
| 6. |
TXD(Transmitted Data Output) pin carries serial stream of the transmitted data bits along with |
| A. | start bit |
| B. | stop bit |
| C. | parity bit |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
In 8251A, the pin that controls the rate at which the character is to be transmitted is |
| A. | TXC(active low) |
| B. | TXC(active high) |
| C. | TXD(active low) |
| D. | RXC(active low) |
| Answer» B. TXC(active high) | |
| 8. |
If the data transmission takes place in either direction, but at a time data may be transmitted only in one direction then, it is of |
| A. | simplex mode |
| B. | duplex mode |
| C. | semi duplex mode |
| D. | half duplex mode |
| Answer» E. | |
| 9. |
If the data is transmitted only in one direction over a single communication channel, then it is of |
| A. | simplex mode |
| B. | duplex mode |
| C. | semi duplex mode |
| D. | half duplex mode |
| Answer» B. duplex mode | |
| 10. |
Which of the following is not a mode of data transmission? |
| A. | simplex |
| B. | duplex |
| C. | semi duplex |
| D. | half duplex |
| Answer» D. half duplex | |