Parallel Ports MCQ’s

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This set of Embedded System Multiple Choice Questions & Answers (MCQs) focuses on “Parallel Ports”.

1. Which of the following registers offers high impedance?
a) data register
b) data direction register
c) individual control bit
d) data register and data direction register

2. Which of the following are interfaced as inputs to the parallel ports?
a) LEDs
b) switch
c) alphanumeric display
d) seven segmented display

3. Which of the following is also known as tri-state?
a) output port
b) input port
c) parallel port
d) output-input port

4. Which of the following can transfer multiple bits of data simultaneously?
a) serial port
b) sequential port
c) concurrent unit
d) parallel port

5. Which of the following is necessary for the parallel input-output port?
a) inductor
b) pull-up resistor
c) push-up resistor
d) capacitor

6. How buffers are enabled in the parallel ports?
a) by the data register
b) by data direction register
c) by individual control register
d) by data and individual control register

7. Which of the following are interfaced as the outputs to the parallel ports?
a) keyboards
b) switches
c) LEDs
d) knobs

8. Which of the following can be used as a chip select?
a) multifunction I/O port
b) parallel port
c) DMA port
d) memory port

9. Which of the following can be described as general-purpose?
a) multifunction I/O port
b) input port
c) dma port
d) output port

10. How many registers are there to control the parallel port in the basic form?
a) 1
b) 3
c) 2
d) 5

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