WGU C839 INTRO TO CRYPTOGRAPHY EXAM 2024
ACTUAL EXAM AND PRE ASSESSMENT EXAM
COMPLETE 500 QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
AES - ANSWER: Advanced Encryption Standard: A symetric cipher that has been
approved as a replacement for DES
Algorithm - ANSWER: Procedures based on mathematical formula; used to encrypt
dada.
Asymmetric Cryptographic Algorithm - ANSWER: Encryption that uses two
mathematically related keys.
Bitlocker - ANSWER: A Microsoft Windows Vista hardware enabled data encryption
feature.
Block Cipher - ANSWER: A cipher that manipulates an entire block of plaintext at the
same time.
Cleartext - ANSWER: Unencrypted data
Blowfish - ANSWER: A block cipher that operates on 64-bit blocks and can have a key
length from 32 to 448 bits.
Ciphertext - ANSWER: Data that has been encrypted.
Collision - ANSWER: In cryptography, two different sets of data that produce the
same hash.
Cryptography - ANSWER: The science of transforming information into an
unintelligible form while it is being transmitted or stored so that unauthorized users
can't access it.
DES - ANSWER: Data Encryption Standard: A symmetric block cipher that encrypts
data in 64-bit blocks.
Decryption - ANSWER: The process of changing ciphertext into plaintext.
Diffie-Hellman - ANSWER: A cryptographic algorithm that allows two users to share a
secret key securely over a public network.
Digest - ANSWER: The unique signature created by a hashing algorithm.
, Digital Signature - ANSWER: An electronic verification of a sender.
Elliptic Curve Cryptography - ANSWER: An algorithm that uses elliptic curves instead
of prime numbers to compute keys.
EFS - ANSWER: Encrypting File System: An encryption scheme for Windows operating
systems.
Encryption - ANSWER: The process of changing plaintesxt into ciphertext.
File System - ANSWER: A method used by operating systems to store, retrieve, and
organize files.
GPG - ANSWER: GNU Privacy Guard: Free, open-source software that is commonly
used to encrypt and decrypt e-mail messages.
Hash - ANSWER: The unique signature created by a hashing algorithm.
Hashing - ANSWER: The process for creating a unique signature for a set of data.
Homoalphabetic Substitution Cipher - ANSWER: A cipher that maps a single plaintext
character to multiple ciphertext characters.
IDEA - ANSWER: International Data Encryption Algorithm: A symmetric algorithm
that dates back to the early 1990s and is used mainly in Europe.
Key - ANSWER: A mathematical value entered into the algorithm to produce a
cipher.
MD - ANSWER: Message Digest: A common hash algorithm of several different
versions.
MD2 - ANSWER: Message Digest 2: A hash algorithm that takes plaintext of any
length and creates a hash that is 128 bits in length after the message is divided into
128 bit sections.
MD4 - ANSWER: Message Digest 4: A hash that was created in 1990 for computers
that process 32 bits at a time.
MD5 - ANSWER: Message Digest 5: A revision of MD4 that is designed to address its
weaknesses.
Metadata - ANSWER: Data that is used to describe the content or structure of the
actual data.
Monoalphabetic Substitution Cipher - ANSWER: A cipher that simply substitutes one
letter or character for another.
ACTUAL EXAM AND PRE ASSESSMENT EXAM
COMPLETE 500 QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
AES - ANSWER: Advanced Encryption Standard: A symetric cipher that has been
approved as a replacement for DES
Algorithm - ANSWER: Procedures based on mathematical formula; used to encrypt
dada.
Asymmetric Cryptographic Algorithm - ANSWER: Encryption that uses two
mathematically related keys.
Bitlocker - ANSWER: A Microsoft Windows Vista hardware enabled data encryption
feature.
Block Cipher - ANSWER: A cipher that manipulates an entire block of plaintext at the
same time.
Cleartext - ANSWER: Unencrypted data
Blowfish - ANSWER: A block cipher that operates on 64-bit blocks and can have a key
length from 32 to 448 bits.
Ciphertext - ANSWER: Data that has been encrypted.
Collision - ANSWER: In cryptography, two different sets of data that produce the
same hash.
Cryptography - ANSWER: The science of transforming information into an
unintelligible form while it is being transmitted or stored so that unauthorized users
can't access it.
DES - ANSWER: Data Encryption Standard: A symmetric block cipher that encrypts
data in 64-bit blocks.
Decryption - ANSWER: The process of changing ciphertext into plaintext.
Diffie-Hellman - ANSWER: A cryptographic algorithm that allows two users to share a
secret key securely over a public network.
Digest - ANSWER: The unique signature created by a hashing algorithm.
, Digital Signature - ANSWER: An electronic verification of a sender.
Elliptic Curve Cryptography - ANSWER: An algorithm that uses elliptic curves instead
of prime numbers to compute keys.
EFS - ANSWER: Encrypting File System: An encryption scheme for Windows operating
systems.
Encryption - ANSWER: The process of changing plaintesxt into ciphertext.
File System - ANSWER: A method used by operating systems to store, retrieve, and
organize files.
GPG - ANSWER: GNU Privacy Guard: Free, open-source software that is commonly
used to encrypt and decrypt e-mail messages.
Hash - ANSWER: The unique signature created by a hashing algorithm.
Hashing - ANSWER: The process for creating a unique signature for a set of data.
Homoalphabetic Substitution Cipher - ANSWER: A cipher that maps a single plaintext
character to multiple ciphertext characters.
IDEA - ANSWER: International Data Encryption Algorithm: A symmetric algorithm
that dates back to the early 1990s and is used mainly in Europe.
Key - ANSWER: A mathematical value entered into the algorithm to produce a
cipher.
MD - ANSWER: Message Digest: A common hash algorithm of several different
versions.
MD2 - ANSWER: Message Digest 2: A hash algorithm that takes plaintext of any
length and creates a hash that is 128 bits in length after the message is divided into
128 bit sections.
MD4 - ANSWER: Message Digest 4: A hash that was created in 1990 for computers
that process 32 bits at a time.
MD5 - ANSWER: Message Digest 5: A revision of MD4 that is designed to address its
weaknesses.
Metadata - ANSWER: Data that is used to describe the content or structure of the
actual data.
Monoalphabetic Substitution Cipher - ANSWER: A cipher that simply substitutes one
letter or character for another.
