WorksheetsCryptography Quiz
Total questions: 20
Worksheet time: 15mins
You use online banking to check your account balance. The bank’s website uses HTTPS. What happens when you type your password and press login?
Your password is sent as plain text over the internet
Your password is encrypted before being sent to the bank’s server
Your password is stored on the browser’s cache
Your password is converted to an image file
A fitness tracker app sends your heart rate and GPS data to its cloud server without encryption. What could a hacker do if they intercept the traffic?
Modify your step count
Read your personal health and location data
Speed up your internet
Install antivirus software
You back up your university assignments to Google Drive, which uses encryption. What advantage does this provide if someone hacks your account storage server?
They can easily read all files
They will only see encrypted, unreadable data
They can delete your account
They can modify your files freely
A mobile payment app allows fingerprint login instead of a password. What cryptographic feature is being used to keep your fingerprint data secure?
Data stored as plaintext
Fingerprint data hashed and encrypted securely
Fingerprint shared with third-party apps
Fingerprint sent as SMS for verification
An employee sends a confidential contract via email but also attaches the encryption password in the same message. What mistake did they make?
Using the wrong file format
Breaking the encryption algorithm
Sharing the password with the encrypted file
Forgetting to use digital signatures
You want to send a secret message to your friend so that only they can read it. What should you do?
Post it on social media
Encrypt it
Hash it
Copy it to a USB drive
Your college website shows a padlock symbol (🔒) in the browser. What does it mean?
The site uses encryption (HTTPS)
The site is very popular
The site has no password
The site uses cookies
A hacker steals a database that stores passwords in plain text. What mistake did the company make?
Used too many firewalls
Did not hash or encrypt the passwords
Used two-factor authentication
Blocked their network ports
You receive an email saying you’ve won a prize and need to click a link to enter your details. What type of cyber threat could this be?
SQL Injection
Phishing
Brute force
Virus
Your teacher shares a file using a password. This ensures which part of the CIA triad?
Integrity
Availability
Confidentiality
None of the above
A company uses AES encryption to protect its data but stores the key in the same folder as the data. What’s wrong?
Nothing
The encryption key is not secure
The AES algorithm is old
The files are too large
While using Wi-Fi at a café, you notice the website has “HTTP” instead of “HTTPS.” What should you do?
Continue normally
Avoid entering any passwords or card details
Turn off Wi-Fi
Send personal data quickly
What is cryptography mainly used for?
To play games
To send data secretly and securely
To create viruses
To delete old files
What is the unreadable form of data after encryption called?
Hashtext
Plaintext
Ciphertext
Scripttext
Which type of encryption uses the same key for both encryption and decryption?
Symmetric
Asymmetric
Hashing
Steganography
Which algorithm is used for asymmetric encryption?
AES
RSA
MD5
SHA-256
What is the main difference between hashing and encryption?
Hashing can be reversed
Encryption cannot be reversed
Hashing is one-way, encryption is two-way
Both are the same
Which of the following ensures that data has not been changed?
Confidentiality
Integrity
Availability
Authentication
Which protocol secures websites and shows the padlock symbol?
FTP
HTTP
HTTPS
DNS
What does “key” mean in encryption?
A hardware tool
The secret used to lock or unlock data
A code written in Python
A password manager
