Unit 4 Exam - Encryption - Cyber Security

What are the two forms of authenticated modes of operations?

• Single-sided and mutual
• Dual and unilateral
• Disconnected and mutual
• Single-sided and double-sided

What is a block cipher?

• A symmetric key cipher that encrypts plaintext one block at a time
• An asymmetric key cipher that encrypts plaintext one stream at a time
• An asymmetric key cipher that encrypts plaintext one hash at a time
• A symmetric key cipher that encrypts plaintext one byte at a time

What is steganography?

• The practice of hiding information in ways to prevent the detection of hidden messages
• The practice and study of writing or solving codes
• The practice of graphing a Stegosaurus drinking eggnog, but only in September in Europe
• The process of assigning a code to something for the purposes of classification or identification

What is obfuscation?

• Hiding data so it is not visible to the average viewer
• Encoding information so it can't be found through reverse psychology
• Making data so unintelligible an encryption is unable to be performed
• Decrypting data by blocks of the same size

Until a key has been compromised, there is no need to update to a more secure one.

• False
• True

A(n) ______ is a structured, organized storage and retrieval system for data

• database
• field
• array
• gate

What is a quantum?

• The least amount of any physical entity required for an interaction
• The state of reference for any state of interaction
• The distance between particles
• The amount of time necessary for light to travel one parsec

What is it called when two hashes are the same?

• Collision
• Overflow
• Race Condition
• Mathematical Error

______ is the concept that information which has been converted and stored in binary digital form is subject to the laws of the country in which it is located.

• Data sovereignty
• Binary ownership
• Government intervention
• Bureaucracy

What can memory manipulation be used for?

• Accessing parts of an application you shouldn't have access to
• Controlling a person to give you access to their account
• Confusing a person into thinking they have wrong credentials
• None of the above