Question 1: Which science focuses on secure communication?
Cryptography
Typography
Cartography
The science that focuses on secure communication is Cryptography. Cryptography deals with protecting information by converting it into secret codes. It ensures that only authorized people can read the message. Typography is about designing text, and cartography is about making maps.
Correct Answer: Cryptography
Question 2: What is the process of converting data into code?
Extraction
Encryption
Compression
The process of converting data into code is done to store or protect information efficiently. Extraction means taking only the required data from a large set of information. Encryption converts data into secret code to keep it safe from unauthorized access. Compression reduces the size of data so it uses less storage space and transfers faster.
Correct Answer: Encryption
Question 3: Which key type is used in public key cryptography?
Binary
Symmetric
Asymmetric
Public key cryptography uses asymmetric keys. It works with two different keys: a public key and a private key. The public key is shared with everyone. The private key is kept secret by the owner.
Correct Answer: Asymmetric