Control Statements and Loops Quiz

What do selection statements allow a computer to do?

Which Boolean expression evaluates to True?

Which statement best describes a multi-way selection statement?

In a condition-controlled loop, what happens when the condition becomes false?

What does the 'break' statement do within a loop?

What is the simplest form of selection statement?

What is the purpose of logical operators in compound Boolean expressions?

Which type of loop halts when a specific condition becomes false?

What is the primary purpose of short-circuit evaluation in Boolean expressions?

Which logical operator has the highest precedence in Python?

What type of loop is a 'for' loop primarily used for?

What is an off-by-one error in the context of loops?

Which statement regarding selection statements is correct?

Which of the following constructs a compound Boolean expression?

What is a break statement used for in loops?

Which statement is true about conditional iteration?

What is a defining feature of a two-way selection statement in programming?

Selection statements allow the computer to make choices based on a condition.
The Boolean data type consists of two values: True and False.
if-else statements are used to check inputs for errors, they have two possible outcomes.
if statements are the simplest form of selection, they perform a task if a condition is True.
Multi-way if statements are used to test multiple conditions, they have more than two outcomes.
Logical operators: and, or, not are used to construct compound Boolean expressions.
Logical operators are evaluated after comparisons, but before the assignment operator (=).
Short-circuit evaluation stops evaluating a statement as soon as possible due to True or False results.

Definite iteration repeats a set of commands a fixed number of times.
for loops use a range function to generate a sequence of numbers.
range(x) generates a sequence from 0 to x-1, range(y,z) generates a sequence from y to z-1.
Off-by-one errors occur when a loop does not perform the intended number of iterations.

Conditional iteration repeats a set of commands while a condition is True.
An entry-controlled while loop keeps repeating until the condition becomes False.
A break statement can be used to exit a loop from its body prematurely.
Any for loop can be converted into an equivalent while loop.
An infinite loop continues indefinitely if the continuation condition never becomes False.
random.randint(x,y) returns a random integer between x and y, inclusive.