MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Through the use of a technique called encryption, or cryptography, communication and information stored and transmitted by computers can be protected against interception to a very high degree.

Detailed explanation-2: -An encrypted connection can keep hackers out; it can also keep your email from being read if intercepted. But encryption cannot prevent human error, such as manually downloading malware-or preventing your account from being stolen by cybercriminals if you do.

Detailed explanation-3: -Encrypted messaging locks down your chats–but only while they’re traveling to the recipients. As a group of alleged conspirators recently learned, encrypted messaging isn’t a guarantee that your private conversations will stay between you and the recipient.

Detailed explanation-4: -The decryption key is secret, so it must be protected against unauthorized access. Encryption is the process of converting data into an unusable form and does not itself stop hacking or data theft. Instead, it prevents stolen content from being used, since the hacker or thief cannot see it in plaintext format.