INTRODUCTION TO INTERNET OF THINGS: Assignment 6

1. d={1:'item','k':2} data type in python represents:

a. Dictionary
b. Array
c. String
d. List

Ans: a

2. The output of the following code snippet is:
  from math import pi
   print (pi)

a. 3.14
b. 2.73
c. pi
d. None of these

Ans: a

3. The following python snippet does the following task:
  file=open('data.txt','r')

a. Opens a file (data.txt) in write mode.
b. Opens a file (data.txt) in read mode.
c. Opens a file (data.txt) in append mode.
d. None of these

Ans: b

4. The Raspberry Pi3 has how many GPIO pins?

a. 20
b. 30
c. 40
d. 50

Ans: c

5. The following python snippet does the following task:
  file=open('data.txt','r+')

a. Opens a file (data.txt) in write mode.
b. Opens a file (data.txt) in read mode.
c. Opens a file (data.txt) in append mode.
d. Both a and b.

Ans:d

6. The raspberry pi zero has the following core specification associated with it?

a. ATMEGA32
b. PIC16
c. ARM-11
d. Quad Cortex A53

Ans: c

7. The command raspistill-o image.jpg on a Raspberry Pi terminal:
a. Captures an image.
b. Stores an image from any camera.
c. Reads an image.
d. Captures and stores an image using the raspberry pi camera.

Ans: d

8. What are the types of GPIO pin modes in Raspberry Pi 2/3?

a. Board
b. BCM
c. Both a and b
d. None of these

Ans: c

9. What is the functionality of the following python code:
  import time
  i=0;
  def function_a(k):
     i+=k
     time.sleep(5)
    print i

  function_a(1)

a. Prints 1 on the console after 5 seconds.
b. Prints 5 on the console after 5 milliseconds.
c. Prints 1 on the console after 5 seconds.
d. Prints 5 on the console after 1 second.

Ans: c

10. Which one is correct for the nested controlling statement in python?

a. elseif
b. elif
c. ifwhile
d. None

Ans: b

11. Which of the following is mutable object in python?

a. Tuple
b. Bool
c. Int
d. List

Ans: d

12. Internet of Things refers to:

a. Interconnection of devices in a network.
b. Exchange of data between devices in a network.
c. An ecosystem of devices, accessible through internet.
d. All of the above.

Ans: d

13. What is the maximum peripheral current draw allowed in Raspberry Pi 3?

a. 1200mA
b. 700mA
c. 500mA
d. 100mA

Ans: a

14. The Raspberry Pi3 has:

a. 400MHz video core IV
b. 250MHz video core IV
c. 100MHZ video core IV
d. No video core

Ans: a

15. A Raspberry Pi has:

a. An inbuilt OS on the board itself.
b. An OS on a memory card.
c. Both a and b.
d. None of these.

Ans: b