Understanding Encryption: A Quiz

Why is encryption important when communicating over the internet?

• To enhance the visual content of messages

• To increase the speed of data transmission

• To protect information from unauthorized access

• To reduce the cost of internet services

What can a determined attacker do with data sent over the internet?

• Intercept and read any data

• Block data from being sent

• Change the destination of the data

• Make the data public on social media

What is the primary reason the internet is vulnerable to attacks?

• It uses outdated technology

• It is controlled by a single organization

• It is an open system designed for easy access

• It lacks any form of digital communication

What can encryption prevent an unauthorized person from doing?

• Sending emails

• Accessing the internet

• Deleting messages

• Understanding intercepted data

What is a simple type of encryption mentioned in the text?

• Firewall protection

• Biometric security

• Quantum encryption

• Caesar cipher

How does a Caesar cipher work?

• By hiding messages in images

• By replacing words with symbols

• By shifting letters of the alphabet by a set number

• By using a special type of ink

What is necessary to decrypt a message encrypted with a Caesar cipher?

• Knowing the key

• Having the same software

• Possessing a copy of the original message

• Understanding the language of the message

What does encryption do to your data?

• Duplicates it for backup

• Scrambles it to prevent unauthorized reading

• Compresses it to save space

• Translates it to another language

What is needed to read encrypted data?

• The correct key

• Permission from the internet service provider

• A high-speed internet connection

• A court order

What is the purpose of encryption in secure messaging?

• To protect the privacy of messages

• To make messages arrive faster

• To improve the aesthetics of messages

• To comply with international laws