Domain 1 Multiple Choice Practice

Containment is important when one needs to know if an answer is in an acceptable (a)   of answers.

• list

• tuple

• set

• dictionary

Answer explanation

A set is an unordered collection of unique elements, making it ideal for checking if an answer is contained within it. Unlike lists or tuples, sets provide efficient membership testing, which is crucial for containment checks.

Python and other languages use a double (a)   sign as a comparison.

• equal

• plus

• minus

• and

Answer explanation

In Python and many other programming languages, the double equal sign (==) is used to compare values for equality. This distinguishes it from other operators like plus (+) and minus (-), making 'equal' the correct choice.

A(n) (a)   is a value attached to a variable, usually with an equal sign.

• assignment

• plus

• minus

• and

Answer explanation

An 'assignment' is the process of assigning a value to a variable, typically using an equal sign. This distinguishes it from other operations like 'plus' or 'minus', which are arithmetic operations.

Rather than count the ending point, one can add the number needed to the (a)   number in the slice.

• first

• last

• middle

• next

Answer explanation

The correct choice is 'first' because when slicing, adding to the first number in the slice allows you to determine the ending point without directly counting it. This approach simplifies the calculation.

The (a)   operator determines whether a value is in a list. A. containment B. logical C. arithmetic D. comparison

• containment

• logical

• arithmetic

• comparison

Answer explanation

The correct choice is 'containment' because this operator checks if a specific value exists within a list, which is the definition of containment. The other options do not pertain to this specific function.

The start and end characters in a slice are separated with a(n) (a)   .

• colon

• comma

• semicolon

• dash

Answer explanation

In Python, a slice is defined using the syntax start:end, where the start and end characters are separated by a colon. Therefore, the correct answer is 'colon'.

The percent symbol is the (a)   operator, showing the remainder after division.

• modulus

• division

• floor

• integer

Answer explanation

The percent symbol (%) represents the modulus operator, which calculates the remainder of a division operation. For example, 5 % 2 equals 1, as 5 divided by 2 leaves a remainder of 1.

A common mnemonic to remember the (a)   of operations is Please Excuse My Dear Aunt Sally.

• Addition

• Subtraction

• Multiplication

• Division

Answer explanation

The mnemonic 'Please Excuse My Dear Aunt Sally' helps remember the order of operations: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction. Thus, 'Multiplication' is the correct answer.

Data structures are lists stored inside of (a)   .

• variables

• functions

• modules

• objects

Answer explanation

Data structures, like lists, are typically encapsulated within objects in programming. Objects can hold various data types and structures, making them the correct choice here, unlike variables, functions, or modules.

Q13. Anything placed inside (a)   in a calculation is calculated first.

• parentheses

• quotes

• brackets

• commas

Answer explanation

In calculations, anything inside parentheses is prioritized and calculated first. This is a fundamental rule in mathematics and programming, making 'parentheses' the correct choice over quotes, brackets, or commas.