Answer:
64 byte.
It's not bit is byte.
Explanation:
Secure Hash Algorithms (SHA) :- These are a family of cryptographic hash functions. There are basically four types of secure hash algorithms for generating cryptographically secure one-way hash.They are as following:-
SHA-0
SHA-1
SHA-2
SHA-3
SHA -2 consists of SHA-512 and the block size used by it is 64 byte or 512 bits.
Meters * 1,000,000,000 = gigameters
Answer A is the answer, as it combines all choices in the list. One can check the overall structure.
On which windows it's not hard just search it google i would help but i hadn't used computer since may
Its A. this one is so easy for me ;)