COMPUTER NETWORKING

NETWORK LAYER

NETWORK LAYER PROTOCOLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is encryption?
A
A secret code used to keep data safe
B
A key which is applied to data to scramble it
C
A set of numbers used to replace letters in data that is transmitted
D
A message that is kept secret
Explanation: 

Detailed explanation-1: -An encryption key is typically a random string of bits generated specifically to scramble and unscramble data. Encryption keys are created with algorithms designed to ensure that each key is unique and unpredictable. The longer the key constructed this way, the harder it is to break the encryption code.

Detailed explanation-2: -Encryption keys are strings of information (bits) that are used by cryptographic algorithms to encode (encrypt) and decode (decrypt) data. Encrypted data is unreadable without proper decoding, thus making it highly secure and difficult for hackers to compromise.

Detailed explanation-3: -Symmetric encryption uses the same key for both encryption and decryption rather than separate public and private keys.

Detailed explanation-4: -The two keys are called the “public key” and the “private key” of the user. The network also has a public key and a private key. The sender uses a public key to encrypt the message. The recipient uses its private key to decrypt the message.

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