PE1 : Python Essentials 1 – Module 3 Test

PE1 : Python Essentials 1 – Module 3 Test

1. How many stars (*) will the following snippet send to the console?

   i = 0
   while i <= 3 :
         i += 2
         print("+")

   • three
   • zero
   • one
   • two

2. After execution of the following snippet, the sum of the all vals elements will equal to:

   vals = [0, 1, 2]
   vals.insert(0, 1)
   del vals[1]

   • 3
   • 4
   • 2
   • 5

3. How many hashes(#) will the following snippet send to the console?

   for i in range(1):
          print("#")
   else:
          print("#")

   • zero
   • three
   • two
   • one

4. How many hashes(#) will the following snippet send to the console?

   var = 0
   while var < 6:
             var += 1
            if var % 2 == 0:
                    continue
            print("#")

   • zero
   • three
   • two
   • one

5. What is the output of the following snippet?

   my_list = [3, 1, -2]
   print(my_list[my_list(-1)])

   • -2
   • -1
   • 3
   • 1

6. How many stars(#) will the following snippet send to the console?

   var = 0
   while i <= 5:
           i += 1
          if vi % 2 == 0:
                  break
            print("*")

   • three
   • two
   • one
   • zero

7. What is the output of the following snippet?

   my_list = [1, 2, 3, 4]
   print(my_list[-3:-2])

   • [2, 3]
   • [2, 3, 4]
   • []
   • [2]

8. How many hashes(#) will the following snippet send to the console?

   var = 1
   while var < 10:
         print("#")
         var = var << 1

   • two
   • eight
   • four
   • one

9. What is the output of the following snippet?

   my_list_1 = [1, 2, 3]
   my_list_2 = []
   for v in my_list_1:
       my_list_2.insert(0, v)
    print(my_list_2)

   • [1, 2, 3]
   • [3, 2, 1]
   • [3, 3, 3]
   • [1, 1, 1]

10. Take a look at the snippet, and choose the true statements: (Select two answer)

    nums = [1, 2, 3]
    vals = nums
    del vals[1:2]

    • nums is longer than vals
    • nums and vals are of the same length
    • nums and vals refer to the same list
    • nums is replicated and assigned to vals

11. What is the output of the following snippet?

    my_list = [[0, 1, 2, 3] for i in rage(2)]
    print(my_list[2][0])

    • 1
    • 2
    • 0
    • the snippet will cause a runtime error 

12. What value will be assigned to the x variable?

    z = 10
    y = 0
    x = y < z and z > y or y > z and z < y

    • 1
    • 0
    • True
    • False

13. Which of the following sentences are true? (Select two answers)

    nums = [1, 2, 3]
    vals = nums[-1:-2]

    • nums and vals are two different lists
    • vals is longer than nums
    • nums and vals are of the same length
    • numsis longer than vals

14. What is the output of the following snippet?

    a = 1
    b = 0
    c = a & b
    d = a | be = a ^ b
    
    print(c + d + e)

    • 1
    • 0
    • 3
    • 2

15. What is the output of the following snippet?

    my_list = [1, 2, 3]
    for v in range(len(my_list)):
         my_list.insert(1, my_list[v])
    print(my_list)

    • [1, 2, 3, 1, 2, 3]
    • [1, 2, 3, 3, 2, 1]
    • [1, 1, 1, 1, 2, 3]
    • [3, 2, 1, 1, 2, 3]

16. An operator able to check whether two values are equal is code as:

    • =
    • !=
    • ==
    • ===

17. The second assignment:

    vals = [0, 1, 2]
    vals[0], vlas[2] = vals[2], vals[0]

    • doesn’t change the list
    • reverses the list
    • shortens the list
    • extends the list

18. What is the output of the following snippet?

    t = [[3-i for i in range (3)] for j in range (3)]
    s = 0 
    for i in range(3):   
        s += t[i][i]
    print(s)

    • 4
    • 7
    • 02
    • 6

19. The value eventually assigned to x is equal to :

    x = 1
    x = x == x

    • 0
    • 1
    • True
    • False

20. How many elements does the my_list list contain?

    my_list = [i for i in range(-1, 2)]

    • two
    • three
    • four
    • one