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WGU C839 Pre- Assessment Version 1 (New 2024/ 2025 Update) introduction to Cryptography| Qs & As| Grade A| 100% Correct (Verified Answers) $10.49   Add to cart

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WGU C839 Pre- Assessment Version 1 (New 2024/ 2025 Update) introduction to Cryptography| Qs & As| Grade A| 100% Correct (Verified Answers)

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  • WGU C839
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  • WGU C839

WGU C839 Pre- Assessment Version 1 (New 2024/ 2025 Update) introduction to Cryptography| Qs & As| Grade A| 100% Correct (Verified Answers)

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  • October 17, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • c839
  • WGU C839
  • WGU C839
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ace_it
WGUIC839IPre-IAssessmentIVersionI1I
(NewI2024/I2025IUpdate)IIntroductionIto
ICryptography|IQsI&IAs|IGradeIA|I100%I
CorrectI(VerifiedIAnswers)

QUESTION
WhichI*encryptionItechnology*IisIaIserialI*combination*IofIhashing,IdataIcompression,Isymm
etric-
keyIcryptography,IandIpublicIkeyIinfrastructureI(PKI)IandIcanIbeIusedIforIencryptingItexts,Ie
mails,Ifiles,IandIdirectoriesIorIforIfullIdiskIencryption?


Answer:
PrettyIGoodIPrivacyI(PGP)

*Remember,IthisIisINOTIanIALGORITHM,Ibut...IitIusesIotherIestablishedIAsymmetricIandIS
ymmetricIAlgorithms*




QUESTION
WhichIconceptIstipulatesIthatIalgorithmsIshouldIbeIopenlyIsharedIandIscrutinized,IbutIkeysIm
ustIbeIabsolutelyIsecured?


Answer:
Kerckhoffs'sIprinciple




QUESTION
WhichIencryptionIprocessI*minimizesIknownIplaintextIattacks*IagainstIAdvancedIEncryptionI
StandardI(AES)?


Answer:
RandomizingItheIinitializationIvector

,QUESTION
WhatIpreventsIaIrainbowItableIattackIduringItheIencryptionIprocess?


Answer:
Salting

*ThisIisIsimplyIaIrandomInumberIthatIisIstoredIalongsideItheIdataIthatIwasIencryptedIwithIthe
Ipassword.*




QUESTION
WhichIfactorI*increasesItheIrequiredInumberIofIattempts*IinIaIbrute-forceIattack?


Answer:
LargerIkeyIsize

IE:IRememberIbruteIforceIisIsimplyItryingIeveryIpossibleIkey.I*DESIhasIaImaximumIkeyIsize
*I(alsoIcalledIaIkeyIspace)IofI256.IAImodernIcomputerIsystemIcanIbreakIthisIinIaIreasonableI
amountIofItime.




QUESTION
WhatIisIaIvulnerabilityIofItheIDataIEncryptionIStandardI(DES)?


Answer:
KeyIlengthIisItooIshort.




QUESTION
WhichIblockIsizeIdoesItheIAdvancedIEncryptionIStandardI(AES)Iuse?

, Answer:
128




QUESTION
WhichIblockIalgorithmIincludesIaIprovisionIforItheIdecryptionIkeyIkeptIinIaIkeyIescrow?


Answer:
Skipjack

DevelopedIbyItheI*NSA*IandIwasIdesignedIforItheI*clipperIchip*IAIchipIwithIbuilt-
inIencryptionITheI*decryptionIkeyIwasItoIbeIkeptIinIaIkeyIescrow*IinIcase,IlawIenforcementI
needItoIdecryptIdataIwithoutItheIcomputerIowner'sIcooperation




QUESTION
WhatIisItheIresultIofIA|BIandIB|C?


Answer:
A|C




QUESTION
HowIisI*XImod*INIifI*NI=IPQ*IrepresentedIinInumberItheory?


Answer:
(IXImodIP,IXImodIQ)

*XImodIP
XImodIQ*




QUESTION
WhatIisItheIoutcomeIwhenIusingItheI*binaryIAND*IfunctionIonI11011IandI10100?

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