Unit 4 : Selection Structure

Question 1

List out the selection structure in python ( 4 )

Answer 1

1. One way decision
2. Two way decision
3. Multiway decision
4. Nested decision

Question 2

What are comparison operators?

Answer 2

1. It was boolean expressions ask a question and produce a Yes or No result which we use to control program flow

Question 3

What does comparison operators return?

Answer 3

1. True ( Yes ) - False ( No )

Question 4

List out the Comparison Operators ( 6 )

Answer 4

1. < Less Than
2. <= Less Than or Equal
3. == Equal To
4. > = Greter Than or Equal
5. > Greter Than
6. != Not Equal

Question 5

What is nested decisions?

Answer 5

1. There is if inside if

Question 6

When should we use two way decisions?

Answer 6

1. If a logical expression is true and something else if the expression is false

Question 7

What is multi-way selection?

Answer 7

1. Having another if when the above if statement is false

• Nested if is when the above if statement is true

Question 8

What can ignore identation? ( 2 )

Answer 8

1. Blank lines
2. Comments

Question 9

When do we need to increase indent ? ( 2 )

Answer 9

1. Selection Structure ( if )
2. Repetition Structure ( for )

• and many more

Question 10

When will try works? When will except works?

Answer 10

1. When the code in try works
2. When the code in try failed