IT101-1L 6-7

Question 1

The __________ is used to determine the length of a string. It returns the number of characters in the string.

Answer 1

len() method

Question 2

is used to replace occurrences of a substring in a string with a new substring. It returns a new string with the replacements made.

Answer 2

The replace() method

Question 3

is used to remove leading and trailing whitespace characters (such as spaces and tabs) from a string.

Answer 3

The strip() method

Question 4

is used to join elements of an iterable (such as a list) into a single string. It returns a new string with the elements joined by the specified separator.

Answer 4

The join() method

Question 5

are used to check if a string starts or ends with a specified prefix or suffix, respectively. They return True or False based on the check

Answer 5

The startswith() and endswith() methods

Question 6

is used to find the first occurrence of a substring in a string. It returns the index of the first occurrence or -1 if the substring is not found.

Answer 6

The find() method

Question 7

works similarly but finds the last occurrence of the substring instead

Answer 7

index() method

Question 8

is used to calculate the square root of a number. It takes a single argument and returns the square root as a floating-point number.

Answer 8

The sqrt function

Question 9

is used to raise a number to a power. It takes two arguments: the base number and the exponent. It returns the result as a floating-point number.

Answer 9

The pow function

Question 10

are used to calculate the sine and cosine of an angle, respectively. These functions take the angle in radians as an argument and return the corresponding sine or cosine value as a floating-point number.

Answer 10

The sin and cos functions

Question 11

involves changing the data type of a value temporarily to perform a specific operation or assignment that requires a different data type.

Answer 11

Typecasting

Question 12

occurs when Python automatically converts a value from one data type to another without explicit instructions from the programmer.

Answer 12

Implicit typecasting

Question 13

another name for implicit typecasting

Answer 13

automatic type conversion

Question 14

requires the programmer to explicitly specify the desired data type. It involves using built-in functions to inform Python about the intended conversion

Answer 14

Explicit typecasting,

Question 15

Explicit typecasting, another name?

Answer 15

type conversion,

Question 16

Converts a value to an integer data type.

Answer 16

int():

Question 17

Converts a value to a floating-point data type.

Answer 17

float():

Question 18

Converts a value to a string data type.

Answer 18

str():