WGU C839- test Questions and Answers Already Passed

WGU C839- test Questions and Answers Already Passed What is the block and key size for Blowfish - 64 bit block - 32-448 bit key What term from the list below best describes a data concealment for covert communication that makes use of LSB replacement? Steganography What term from the list below best describes a data concealment for covert communication that makes use of LSB replacement? Steganography Which block cipher below uses a block size of 128 bits and key sizes up to 256 bits? TwoFish Symmetric encryption is expressed mathematically as : C = E (k,p) Name all the Hashing algorithms - Tiger - SHA256 - Fork256 - SHA1 - Gost - MD5 - RIPEMD-160 What is the has value for TIGER? 192 bit What is the hash value for SHA256? 128 Bit What is the hash value for FORK 256? 128 bitWhat is the hash value for SHA1? 160 Bit What is the hash value of GOST? 256 bit What is the hash value of MD5? 128 Bit What is the hash value of RIPEMD-160 160 bit What are all they symmetric block ciphers? - AES - IDEA - DES - Blowfish - TwoFish - Skipjack - Serpent What is the block and key size for AES? - 128 bit block - 128, 192 and 256 bit key What is the block and key size for TwoFish? - 128 bit block size - 1-256 bit key What is the block and key size for SkipJack? - 64 bit block - 80 bit key What is the block and key size for Serpent? - 128 bit block size - 128, 192 and 256 bit key sizes Which of the following are asymmetric encryption algorithms? -RSA-DSA -ECC Which of the following are symmetric stream ciphers? - FISH - RC4 - PIKE Identify and select the hash algorithms from the list below - FORK256 - MD5 - GOST - RIPEMD-160 Identify and select viable options for key exchange: - DH - ECDH - MQV Identify and select the 32 round symmetric block ciphers from the list below: - SkipJack - Serpent Which asymmetric encryption algorithm leverages characteristics of prime numbers and utilizes variable key lengths ? - RSA Which equation below represents the encryption process for RSA? - Me % n How many rounds are used in AES encryption? - 10, 12 or 14