CISSP-ISSMP Question #87: Real Exam Question with Answer & Explanation

The correct answer is A: Encryption encodes information using specific algorithms with a string of numbers known as a key.. 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

Foundational Security Concepts

Question

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

Options

AEncryption encodes information using specific algorithms with a string of numbers known as a key.
BEncryption validates a username and password before sending information to the Web server.
CEncryption allows authorized users to access Web sites that offer online shopping.
DEncryption 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.

Topics

#Encryption#Cryptography Basics#Security Mechanisms

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