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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+$18.89
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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+
ACTUAL EXAM
An authentication method that periodically re-
authenticates the client by establishing a hash that is
then resent from the client is called ______.
A PAP
B CHAP
C SPAP
D EAP
B
What is a TGS?
A The server that grants Kerberos tickets
B protocol for encryption
C protocol for key exchange
D The server that escrows keys
,A
What is the formula (M^e)(%n) related to?
A Encrypting with EC
B Generating Mersenne primes
C Decrypting with RSA
D Encrypting with RSA
C
Which of the following equations is related to EC?
A P = Cd%n
B Me%n
C y2 = x3 + Ax + B
D Let m = (p-1)(q-1)
C
U.S. Patent 5,231,668 and FIPS 186 define what
algorithm?
A AES
B RSA
C Elliptic Curve (EC)
D Digital Signature Algorithm (DSA)
D
,What is X.509?
A The standard for PGP certificates
B The standard for encrypting email
C The standard for FIPS 186
D The standard for digital certificates
D
What is contained in a CRL?
A Keys for RSA
B New certificates
C Revoked certificates
D Keys for AES
C
What does the Online Certificate Status Protocol
(OCSP) provide?
A Revoked certificates
B Hashing
C VPN connectivity
D Encryption
A
In terms of cryptanalysis, what does it mean to
break a cipher?
A finding a method to decrypt a message that is at
, least twice as efficient as brute force
B trying every possible key until you can decrypt the
message
C deploying an algorithm that uses a 228 bit key
D finding any method to decrypt the message that is
more efficient than brute force
D
What is Kerchoff's principle?
A A minimum key size of 256 bits is necessary for
security.
B Both algorithm and key should be kept secret.
C A minimum of 15 rounds is needed for a Feistel
cipher to be secure.
D Only the key needs to be secret, not the actual
algorithm.
D
Which of the following is a fundamental principle of
cryptography that holds that the algorithm can be
publically disclosed without damaging security?
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