Menu

Logical Operators

Card 1 of 13 0 got it 0 still learning
Question
TapClick or press space to see the answer
Answer
All 13 cards in this set
Which operator gives a True result only when both of its inputs are True?
AND
What is meant by the operator OR?
It gives a True result when at least one of its inputs is True
Which operator reverses the value of a single Boolean input?
NOT
What is meant by the term Boolean expression?
An expression that evaluates to either True or False
What is the name for a table that shows the output for every possible combination of inputs to a Boolean expression?
Truth table
What is meant by the term Boolean operator?
An operator such as AND, OR or NOT that combines or changes True and False values
What is the output of the expression NOT True?
False
What is the value of (2 > 3) OR (5 == 5)?
True
A program accepts a password only when it is longer than 7 characters AND contains a digit. Which pair of values allows the password to be accepted?
Length is 10, contains digit is True
In the rule IF day == 'Saturday' OR day == 'Sunday' THEN shop is closed, on which days is the shop closed?
Saturday and Sunday
What does the expression NOT (x > 10) evaluate to when x is 15?
False
What does the NOT operator do to its input?
It takes a single input and reverses its truth value, so True becomes False and False becomes True.
A ticket is sold when age is less than 18 OR the person is a student. Which person can buy a ticket?
A 25 year old who is a student