ExamAdept

What is the purpose of the append() method in Python lists?

A:

To remove an element from the list

B:

To add an element to the end of the list

C:

To add an element at a specified position

D:

To check if an element is present in the list

Answer: B

The append() method is used to add an element to the end of a list.

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How do you convert a floating-point number to an integer?

A:

int(x)

B:

convert(x, int)

C:

x.integer()

D:

round(x)

Answer: A

The int() function can be used to convert a floating-point number to an integer by truncating the decimal part.

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What is the output of the following code snippet?

my_list = [1, 2, 3, 4, 5]
print(my_list[1:4])

A:

[2, 3, 4]

B:

[1, 2, 3]

C:

[1, 2, 3, 4]

D:

[3, 4, 5]

Answer: A

Slicing is used to extract a portion of a list. The specified range is [1:4], which includes elements at indices 1, 2, and 3.

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What is the purpose of the type() function?

A:

To convert a variable to a different data type

B:

To check the data type of a variable

C:

To perform mathematical operations

D:

To round a floating-point number

Answer: B

The type() function is used to determine the type of a variable.

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Which of the following data types is mutable?

A:

int

B:

float

C:

str

D:

list

Answer: D

Lists in Python are mutable, meaning their elements can be changed after the list is created.

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Questions for: Data Types