ExamAdept

What is the purpose of the chr() function?

A:

Returns the character at a specified Unicode code point

B:

Converts a string to uppercase

C:

Checks if a variable is of a certain type

D:

Rounds a floating-point number down to the nearest integer

Answer: A

The chr() function returns a string representing a character whose Unicode code point is the integer.

📖

What is the output of the following code snippet?

my_set = {1, 2, 3, 4, 5}
my_set.remove(3)
print(my_set)

A:

{1, 2, 3, 4, 5}

B:

{1, 2, 4, 5}

C:

{1, 2, 4}

D:

Error

Answer: B

The remove() method is used to remove a specific element from a set.

📖

How do you convert a string to lowercase?

A:

string.lower()

B:

toLower(string)

C:

string.lowercase()

D:

lower(string)

Answer: A

The lower() method is used to convert a string to lowercase in Python.

📖

What will be the output of the following code snippet?

my_dict = {'a': 1, 'b': 2, 'c': 3}
result = my_dict.get('d', 'Not Found')
print(result)

A:

1

B:

Not Found

C:

4

D:

Error

Answer: B

The get() method returns the value for the specified key. If the key is not found, it returns the default value, which is 'Not Found' in this case.

📖

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

A:

To find the total number of elements in the list

B:

To count the occurrences of a specific element in the list

C:

To reverse the order of elements in the list

D:

To add an element to the end of the list

Answer: B

The count() method is used to count the number of occurrences of a specified element in a list.

Here is an example program that uses the count() method:

list = [1, 2, 3, 4, 1, 2]
print(list.count(1))

This program will print the number 2, which is the number of times the element 1 appears in the list.

📖

Questions for: Data Types