Which of the following statements best explains how encryption works on the Internet?

A.
Encryption encodes information using specific algorithms with a string of numbers known as a
key.

B.
Encryption validates a username and password before sending information to the Web server.

C.
Encryption allows authorized users to access Web sites that offer online shopping.

D.
Encryption helps in transaction processing by e-commerce servers on the Internet.

Explanation:
Encryption is a method of securing data while it travels over the Internet. The encryption software
encodes information from plain text to encrypted text, using specific algorithms with a string of
numbers known as a key. The encryption and decryption processes depend on both the information
sender and the receiver having knowledge of a common encryption key. The length of the
encryption key is an important security parameter. Longer key provides more secure data, as it is
more difficult to determine the encryption key.
TechNet, Contents: Windows NT 4.0: Virtual Private Networking