INMT 341 FINAL EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS
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Course
INMT 341
Institution
INMT 341
INMT 341 FINAL EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS
Encryption - Answer-The process of taking an unencrypted message (plaintext), applying a mathematical function to it (encryption algorithm with a key) and producing an encrypted message (ciphertext).
Plain text - Answer-digital inform...
INMT 341 FINAL EXAM QUESTIONS
WITH CORRECT DETAILED
ANSWERS
Encryption - Answer-The process of taking an unencrypted message (plaintext),
applying a mathematical function to it (encryption algorithm with a key) and producing
an encrypted message (ciphertext).
Plain text - Answer-digital information that a user can read
Ciphertext - Answer-digital information unintelligible to a user
Cipher - Answer-An algorithm to perform encryption
Algorithm - Answer-a procedure or formula for solving a problem, based on performing
a sequence of specified actions
Key - Answer-a key is a variable value that is applied using an algorithm to a string or
block of unencrypted text to produce encrypted text, or to decrypt encrypted text
Encryption Key - Answer-A piece of information, in a digitized form, used by an
encryption algorithm to convert the plaintext to the ciphertext
Key length - Answer-The size of the encryption key measured in bits - 256 is the
standard!!!!!
Decryption - Answer-A technique used to recover the original plaintext from the
ciphertext so that it is intelligible to the reader
Symmetric Key Encryption - Answer-The trading partners use the same key for both
encryption and decryption.
Asymmetric (public key) Encryption - Answer-uses a public and private key to encrypt
and decrypt messages - used for digital signatures
Data Encryption Standard - Answer-outdated symmetric key method of data encryption;
aka same key is no longer good enough
, public key infrastructure (PKI) - Answer-supports the distribution and identification of
public encryption keys, enabling users and computers to both securely exchange data
over networks such as the Internet and verify the identity of the other party
Digital Certificate - Answer-is used to verify the trustworthiness of a website
Certificate Authority - Answer-a trusted third party that issues electronic digital
certificates to verify a digital entity's identity on the Internet
Digital Signature - Answer-a mathematical technique used to validate the authenticity
and integrity of a message, software or digital document
- using PRIVATE KEY
- they are hashed then use a key for encryption
Hash Function - Answer-An algorithm that maps or translates one set of bits into
another (generally smaller) so that a message yields the same result every time the
algorithm is executed using the same message as input
*virtually impossible to reverse a hash
What kind of control is encryption? - Answer-preventative and detective
2. Disaster Recovery Plans - Answer-a set of human, physical, technical and procedural
resources to recover in case of disaster
Cold Site - Answer-an IS backup facility but lacks computer equipment
Hot Site - Answer-fully operational backup facility with hardware and software
Business Continuity Plan - Answer-plan that will be executed in case of emergency to
recover and resume quickly
Full Backup - Answer-a complete copy of all the data
Differential Backup - Answer-backs up all new data since last FULL BACKUP
Incremental Backup - Answer-backs up all new data since last INCREMENTAL
BACKUP
Recovery Time Objective - Answer-how long can an app be down before significantly
damaging the business
Recovery Point Objective - Answer-how much data can be lost before significantly
damaging the business
2 Parts of Disaster Plans - Answer-1. Backups
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