Questions

1. The UART and SPI are examples of:
   1. Serial interfaces
   2. High-speed interfaces like PCIe
   3. Low-speed, lightweight interfaces
   4. a and c
2. UART interfaces are commonly used for:
   1. CPU terminal connections
   2. Graphical displays
   3. Multi-chip busses
3. MISO, MOSI, CSn, and SCLK are all part of the ______ bus:
   1. I2C
   2. SPI
   3. UART
   4. DDR2
4. Which signals are part of the UART interface? (Choose all that apply)
   1. CSn
   2. RXD
   3. TXD
   4. SCLK
5. Which bus uses oversampling of data?
   1. UART
   2. I2C
   3. SPI