Authentication (AQA GCSE Computer Science): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What is authentication?
What is authentication?
Proving who you are to a computer system
In username & password authentication, what does the computer check?
In username & password authentication, what does the computer check?
Username exists & password matches
What is the biggest weakness of password authentication?
What is the biggest weakness of password authentication?
Passwords can be forgotten, stolen or guessed
Which is an example of electronic key/device authentication?
Which is an example of electronic key/device authentication?
Text message with a secret code
Electronic keys/devices are based on which principle?
Electronic keys/devices are based on which principle?
Something you have
What does biometric authentication use?
What does biometric authentication use?
Measurements of unique physical features
What are fingerprint scanners used for in many schools?
What are fingerprint scanners used for in many schools?
Lunch payments
Biometric authentication is based on which principle?
Biometric authentication is based on which principle?
Something you are
What is two-factor authentication?
What is two-factor authentication?
Combining two different auth methods
Why does two-factor authentication reduce unauthorized access risk?
Why does two-factor authentication reduce unauthorized access risk?
Attacker must compromise two factors
Why should passwords never be stored as plain text?
Why should passwords never be stored as plain text?
Hackers would know everyone's passwords
What is hashing in password security?
What is hashing in password security?
A one-way process converting to a hash
How does hashing protect users if a database is stolen?
How does hashing protect users if a database is stolen?
Criminals can't easily find real passwords