Recap Sli 17

1.What will be printed in that code? 

• a) 5

• b) 9

• c) 0

• d) 10

2.How could we iterate on the letters of the string “hello”? 

• a) ‘for i in range("hello")’

• b) ‘for i in range(5)’

• c) ‘for i in "hello" ’

• d) ‘while i < "hello" ’

3.What is written between brackets in the function’s definition and do they act as placeholders for values passed when the function is called?

• a) Arguments

• b) Parameters

• c) Return Values

• d) None of the Above

What does this function do? 

• a) It returns the index of the first occurrence of ‘x’ in ‘y’.

• b) It returns the index of the last occurrence of ‘x’ in ‘y’.

• c) It returns the number of the occurrences of ‘x’ in ‘y’.

• d) It returns the length of the string ‘y’.

What does this function calculate​?

• a) x ** 2

• b) x*(x-1)/2

• c) x + 1

• d) factorial of ‘x’

the output of this code?

•Answer:

16,12

• True

• False

6.What is the keyword ‘break’ used for? 

Answer: to exit the loop immediately.

• True

• False

7.What are the three types of arguments?

•Answer:

•1.  Positional Arguments

•2.  Keyword Arguments

•3.  Default Values

• True

• False

What is the keyword ‘global’ used for?

•Answer: It is used when we want to change the value of global variable inside a function.

• True

• False

a code for a function that takes two positive integers and returns the greatest common divisor of them

• True

• False