Variable Types

Question 1

Variable

Answer 1

Variables are nothing but reserved memory locations to store values.

Question 2

Assignment Operator

Answer 2

( = ) . The operand to the left of the ( = ) operator is the name of the variable and the operand to the right of the ( = ) operator is the value stored in the variable.

Question 3

The Five Standard Data Types

Answer 3

Numbers, String, List, Tuple, Dictionary

Question 4

The Four Numerical Data Types

Answer 4

int, long, float, complex

Question 5

A Complex Number

Answer 5

A complex number consists of an ordered pair of real floating-point numbers denoted by x + yj, where x and y are the real numbers and j is the imaginary unit.

Question 6

Strings

Answer 6

Strings in Python are identified as a contiguous set of characters represented in quotation marks

Question 7

Slice Operator

Answer 7

( [ ] ),( [ : ] ). Subsets of strings can be taken using the slice operator ( [ ] ) and ( [ : ] ) with indexes starting at 0 in the beginning of the string and working their way from -1 at the end of the string.

Question 8

String Concatenation Operator

Answer 8

( + ). Used to concatenate one or more strings.

Question 9

Repetition Operator

Answer 9

( * ). Used to duplicate a string by an integer value.

Question 10

Lists

Answer 10

A list contains items separated by commas and enclosed within square brackets ( [ ] ). A list may contain items belonging to different data types.

Question 11

Tuples

Answer 11

A tuple is a sequence data type that is similar to a list but enclosed in parenthesis ( ( ) ). Tuples are an immutable data type (cannot change once defined). Tuples can be thought of as a read only list.

Question 12

Dictionaries

Answer 12

A dictionary is a collection which is unordered, mutable, and indexed using (key,value) pairs. Dictionaries are enclosed with curly bracketed ( { } ).