Cryptography

Imagine you are sending a confidential document to your colleague. What is the purpose of encrypting this document before sending it?

• To increase the storage space on the device holding the document

• To encode the document so only your colleague can access its contents

• To enhance the speed of the document's transmission over the internet

• To make the transmission of the document more expensive

What is plaintext?

• A tool used to hack data

• The original, readable data that needs protection

• A type of encryption algorithm

• The encrypted form of data

Which of the following is NOT an encryption algorithm?

• Data Encryption Standard (DES)

• Rivest-Shamir-Adleman (RSA)

• Advanced Encryption Standard (AES)

• HyperText Transfer Protocol (HTTP)

What is a key in the context of encryption?

• A physical device used to unlock encrypted data

• A software that generates random data

• A password that users must remember

• A piece of information used by the encryption algorithm

What is symmetric key encryption?

• A method where different keys are used for encryption and decryption

• A technique that does not require a key

• A method where the same key is used for both encryption and decryption

• A type of encryption that is easily broken

What is asymmetric key encryption also known as?

• Dual-key encryption

• Public-key encryption

• Private-key encryption

• Single-key encryption

What is ciphertext?

• The original, readable data

• A tool for breaking encryption

• A type of encryption algorithm

• The encrypted form of the plaintext

What is decryption?

• The process of converting ciphertext back into plaintext

• A method to enhance encryption

• The process of doubling the encryption

• Creating a duplicate of the original data

Why is encryption crucial when sending confidential emails?

• For making email transmission slower

• For ensuring email confidentiality and privacy

• For advertising purposes

• For making emails easier to access

What does Gmail use to encrypt emails during transit?

• Asymmetric Key Encryption

• Transport Layer Security (TLS)

• Symmetric Key Encryption

• Public Key Infrastructure (PKI)