WGU C839 Intro to Cryptography Exam with Questions and Answers

WGU C839 Intro to Cryptography Exam with Questions and Answers If you wished to see a list of revoked certificates from a CA, where would you look? A CRL B CA C RFC D RA ANSWER A Which of the following is generally true about block ciphers? A Secret block ciphers should be trusted. B Block ciphers permute the bits of the input plaintext. C The plaintext and ciphertext are always the same size. D A block cipher is an encryption function for variable-size blocks of data. ANSWER C What does the OCSP protocol provide? A encryption B VPN connectivity C hashing D a real time protocol for verifying certificates ANSWER D U.S. encryption standard that replaced DES. Block symmetric cipher that uses 128-bit block sizes and various key lengths (128, 192, 256). ANSWER AES