#1 Embedded Systems Quiz

SPI Protocol Quiz

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1. SPI is ____ communication type BUS?
   Serial
   Parallel
   Differential
   None


2. SD card uses which protocol?
   I2C
   UART
   SPI
   SMBus


3. Which is the fastest interface?
   UART
   SPI
   I2C
   GPIO


4. What is “clock polarity” in SPI?
   Clock Frequency
   Voltage of Clock Signal
   Phase of the Signal
   Sampling Frequency


5. How many modes are there in SPI?
   1
   2
   3
   4


6. Which SPI line carries data from Master to Slave?
   MISO
   MOSI
   SCK
   CS


7. What is the function of the CS (Chip Select) line?
   Provides clock signal
   Enables specific slave device
   Transfers data
   Handles power


8. How many wires are typically used in standard SPI communication?
   2
   3
   4
   5


9. In SPI, which device controls the clock?
   Slave
   Master
   Both
   External circuit


10. SPI communication is generally ____ duplex?
    Half
    Full
    Simplex
    None