IoT in week 5

What does RS-232 stand for in serial communication?

• Recommended Standard 232

• Remote Serial 232

• Registered Serial 232

• Rapid Serial 232

Which of the following is a characteristic of UART?

• Requires a shared clock signal

• Uses differential signaling

• Asynchronous communication

• Only supports half-duplex communication

In SPI communication, which line is responsible for sending data from the master to the slave?

• MISO

• MOSI

• SCK

• SS

Which communication mode allows multiple devices to communicate over the same two-wire bus?

• SPI

• UART

• I2C

• RS-232

What is the primary difference between synchronous and asynchronous communication?

• Synchronous uses start and stop bits; asynchronous uses a shared clock.

• Asynchronous uses start and stop bits; synchronous uses a shared clock.

• Synchronous is slower than asynchronous.

• Asynchronous allows multiple devices; synchronous does not.

Which of the following lines is NOT part of the standard SPI interface?

• MOSI

• MISO

• SDA

• SCK

What role does the SDA line play in I2C communication?

• Clock signal

• Data transmission

• Slave selection

• Reset signal

Which protocol is typically used for long-distance serial communication between computers and peripherals?

• SPI

• I2C

• RS-232

• UART

In UART communication, what is the typical purpose of the start bit?

• Indicate the end of data transmission

• Synchronize the receiver to the incoming data

• Provide parity information

• Signal the type of data being sent

Which of the following is TRUE about I2C communication?

• It uses four wires for communication.

• It supports multiple masters and multiple slaves.

• It is faster than SPI.

• It is inherently asynchronous.