Conditional Statements

How can you check if a key exists in a dictionary?

A:

Using if key in dict

B:

Using if exists(dict[key])

C:

Using if contains(dict, key)

D:

Using if key: dict

Answer: A

The in keyword is used to check if a key exists in a dictionary in Python.

📖

Which of the following is the correct way to handle multiple exceptions in a try-except block?

A:

try:
    # code block
except Exception1:
    # handle Exception1
except Exception2:
    # handle Exception2

B:

try:
    # code block
except Exception1, Exception2:
    # handle exceptions

C:

try:
    # code block
except (Exception1, Exception2):
    # handle exceptions

D:

try:
    # code block
catch Exception1:
    # handle Exception1
catch Exception2:
    # handle Exception2

Answer: C

The correct syntax is to use a tuple in the except clause to handle multiple exceptions.

📖

What will be the output of the following code?

num = 0
if num:
    print("Non-zero")
else:
    print("Zero")

A:

Non-zero

B:

Zero

C:

Error

D:

No output

Answer: B

The condition if num checks if num is truthy. Since num is 0, which is falsy, the code inside the else block is executed, printing "Zero."

📖

What does the elif statement stand for?

A:

Else If

B:

End Loop If

C:

Execute Last If

D:

Exit Loop If

Answer: A

The elif statement is short for "else if" and is used to check additional conditions after the initial if statement.

📖

Which built-in function is used to check the type of an object?

A:

typeof()

B:

type()

C:

otype()

D:

istypeof()

Answer: B

The type() function is used to check the type of an object in Python.

📖

Questions for: Conditional Statements