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Question 1

What is the expected output of the following code?

1. a = [1, 2, 3, 4, 5]

2. print(a[3:0:-1])

Options :

A : [4, 3, 2, 1]

B : [4, 3, 2]

C : The code is erroneous.

D : [4, 3]

Answer: B

Question 2

Knowing that a function named randint()

resides in the module named random

choose the proper way to import it:

Options :

A : import randint

B : import randint from random

C : from random import randint

D : from randint import random

Answer: C

Question 3

What is true about updating already installed Python packages?

Options :

A : It-s an automatic process which doesn't require any user attention.

B : It can be done only by uninstalling the package once again.

C : It can be done by reinstalling the package using the reinstall command.

D : It-s performed by the install command accompanied by the -U option.

Answer: D

Question 4

Which of the following lines contain valid Python code?

(Select two answers.)

Options :

A : lambda x,y -> x ** y

B : lambda x,y: '0123456789'[x:y]

C : lambda f(x,y): return x >> y

D : lambda x,y: x + y

Answer: B,D

Question 5

Consider the following code.

1. data = ['Peter', 'Paul', 'Mary', 'Jane']

2. res = 0

Which of the following code snippets will expand the code,

so that 100 will be printed to the monitor?

Choose two.

Options :

A : 1. for i in ('Peter', 'Steve', 'Jane'):

2. if i not in data:

3. res += 100

4. print(res)

B : 1. for i in ('Peter', 'Steve', 'Jane'):

2. if i not in data:

3. res += 50

4. print(res)

C : 1. for i in ('Peter', 'Steve', 'Jane'):

2. if i in data:

3. res += 100

4. print(res)

D : 1. for i in ('Peter', 'Steve', 'Jane'):

2. if i in data:

3. res += 50

4. print(res)

Answer: A,D