{"id":113692,"date":"2023-08-16T03:15:29","date_gmt":"2023-08-16T03:15:29","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=113692"},"modified":"2023-08-16T03:15:31","modified_gmt":"2023-08-16T03:15:31","slug":"wgu-c839-exam-100-real-oa-exam-questions-and-correct-answers-2023-2024-verified-answersagrade-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2023\/08\/16\/wgu-c839-exam-100-real-oa-exam-questions-and-correct-answers-2023-2024-verified-answersagrade-2\/","title":{"rendered":"WGU C839 EXAM 100 REAL OA EXAM QUESTIONS AND CORRECT ANSWERS 2023-2024 (VERIFIED ANSWERS)|AGRADE"},"content":{"rendered":"\n

WGU C839 EXAM 100 REAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS)|AGRADE
Original, unencrypted information is referred to as . A text B plaintext C cleantext D ciphertext B Which of the following is NOT an asymmetric system? A PGP B RSA C SSL D DES D In order for User A to send User B an encrypted message that only User B can read, User A must encrypt message with which of the following keys? A User A’s public key B User A’s private key C User B’s public key D User B’s private key C The greatest weakness with symmetric algorithms is _<\/em><\/strong>.
A They are less secure than asymmetric
B The problem of key exchange
C They are slower than asymmetric
D The problem of generating keys<\/p>\n\n\n\n

B
Which of the following is generally true about block sizes?
A Smaller block sizes increase security
B Block sizes must be more than 256 bits to be secure
C Block size is irrelevant to security
D Larger block sizes increase security
D
A _ is a function that takes a variable-size input m and returns a fixed-size string. A Symmetric cipher B Hash C Asymmetric cipher D Feistel B Which of the following is a cryptographic protocol that allows two parties to establish a shared key over an insecure channel? A Elliptic Curve B RSA C MD5 D Diffie-Hellman D A _<\/strong><\/em><\/strong> is a digital representation of information that identifies you as a
relevant entity by a trusted third party?
A Digital Signature
B Hash
C Ownership stamp
D Digest
A<\/p>\n\n\n\n

What is the standard used by most digital certificates?
A X.509
B CRL
C RFC 2298
D OCSP
A
DES uses keys of what size?
A 56 bits
B 192 bits
C 128 bits
D 64 bits
A
Which of the following is NOT a key size used by AES?
A 512 bits
B 128 bits
C 192 bits
D 256 bits
A
Which of the following was a multi alphabet cipher widely used from the 16th
century (1553) to the early 20th century (1900s)?
A Vigenere
B Caesar
C Atbash
D Scytale
A
Which of the following is a substitution cipher used by ancient Hebrew scholars?
A Caesar
B Vigenere<\/p>\n","protected":false},"excerpt":{"rendered":"

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