WGU D334, SHAWNS STUDY GUIDE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
Encryption/Decryption Ans✓✓✓ changing plaintext into ciphertext /
changing it back
should be applied to information you want to protect at rest as well as in
transit
Aescrypt Ans✓✓✓ Encrypt individual files
Bitlocker and FileVault Ans✓✓✓ encrypt full disks
Mono-alphabetic code or substitution Ans✓✓✓ Single mapping from
alphabet to cipher alphabet
polyalphabetic code Ans✓✓✓ Mapping of alphabet to multiple cipher
alphabets
One-time pad Ans✓✓✓ Unbreakable encryption. only uses its cipher
code once
Pseudo-random number generators (PRNGs) Ans✓✓✓ This method
repeats the random numbers after a given time (periodic). They are fast
and are also deterministic and are useful in producing a repeatable set of
random numbers.
, True Random number generators (TRNGs) Ans✓✓✓ This method
generates a true random number and uses some form of random process.
One approach is to monitor the movements of a mouse pointer on a
screen or from the pauses between keystrokes. Overall, the method is
generally slow, especially if it involves human interaction, but is non-
deterministic and aperiodic.
Frequency analysis Ans✓✓✓ Cipher cracking methodology that
involves identifying patterns and variations in the probability of codes.
Entropy Ans✓✓✓ measures level of unpredictability
Hardware Security Module (HSM) Ans✓✓✓ a tamper-evident and
intrusion-resistant physical device that safeguards and manages
cryptographic keys and provides cryptographic processing
Trusted platform module (TPM) Ans✓✓✓ A dedicated processor that
handles hardware-level encryption; allows you to encrypt data on your
device
Pigpen Ans✓✓✓ mono-alphabetic substitution cipher that makes use of
mapping plaintext characters to graphical characters rather than to
alphabetic ones.
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
Encryption/Decryption Ans✓✓✓ changing plaintext into ciphertext /
changing it back
should be applied to information you want to protect at rest as well as in
transit
Aescrypt Ans✓✓✓ Encrypt individual files
Bitlocker and FileVault Ans✓✓✓ encrypt full disks
Mono-alphabetic code or substitution Ans✓✓✓ Single mapping from
alphabet to cipher alphabet
polyalphabetic code Ans✓✓✓ Mapping of alphabet to multiple cipher
alphabets
One-time pad Ans✓✓✓ Unbreakable encryption. only uses its cipher
code once
Pseudo-random number generators (PRNGs) Ans✓✓✓ This method
repeats the random numbers after a given time (periodic). They are fast
and are also deterministic and are useful in producing a repeatable set of
random numbers.
, True Random number generators (TRNGs) Ans✓✓✓ This method
generates a true random number and uses some form of random process.
One approach is to monitor the movements of a mouse pointer on a
screen or from the pauses between keystrokes. Overall, the method is
generally slow, especially if it involves human interaction, but is non-
deterministic and aperiodic.
Frequency analysis Ans✓✓✓ Cipher cracking methodology that
involves identifying patterns and variations in the probability of codes.
Entropy Ans✓✓✓ measures level of unpredictability
Hardware Security Module (HSM) Ans✓✓✓ a tamper-evident and
intrusion-resistant physical device that safeguards and manages
cryptographic keys and provides cryptographic processing
Trusted platform module (TPM) Ans✓✓✓ A dedicated processor that
handles hardware-level encryption; allows you to encrypt data on your
device
Pigpen Ans✓✓✓ mono-alphabetic substitution cipher that makes use of
mapping plaintext characters to graphical characters rather than to
alphabetic ones.
