Question
Network Security fundamentals( Computer Science major)
multiple choice question. posting more soon.
CST 3610 - Network Security Fundamentals Midterm Exam October 22, 2014 Computer Systems Technology Department MDS is message-digest algorithm version 5. MDS is cryptographic hash function producing a 128-bit hash value, typically expressed as a 32 digit hexadecimal number MDS stand of messaging-digital algorithm version 5. MDS is used to encrypt telnet session between server and host in 256-bit hash value MDS stand of messaging-divided algorithm version 5. MDS is used to encrypt SFTP session between server to router in 1,024-bit and then to host B. C. D. stand of message-digital algorithm version S. MDS is used to encrypt router sessions only utilize 2,048-bit hash value 49. Select the answer that best describes the acronym for SHA? A. Signature Hash Algorith B. Signed Hash Algoritfim C Secured Hexadecimal Algorithm D. Security Hash Algorithm E. Secured Hashed Algorithm 50. Choos e the best answer that describes each of the versions of SHA-1 and SHA-2 and their associated and supported bits? A. SHA-1: 160 bits and S HA-2: SHA256, SHA512 bits B. SHA-1: 60 bits and SHA-2: SHA265, SHA1,024 bits C. SHA-1: 360 bits and SHA-2: SHA65, SHA2,048 bits D. SHA-1: 48 bits and SHA-2: SHA365, SHA3,048 bits E. None of the above
Explanation / Answer
Network Securtiy Fundamental:
SHA is designed by United States "National Security Agency".
The full form SHA is Secure Hash Algorithm, it is of two types SHA-1, SHA-2. Following are the length of hash values produced by each algorithm
SHA-1 , produces 160 bits hash value
SHA-2, produces 224, 256, 384, 512 bits hash values.
49. select best answer for the acronym SHA-
The near by answer from the given options is, Secured Hashed Algorithm
50. choose the best answer that describe the versions and bits sizs of SHA-1 and SHA-2
The near by answer from the given options is, SHA-1: 160 bits and SHA-2 : SHA256, SHA512 bits.