I'm pretty sure the answer is b
Answer:
First off, I'm not writing your essay. I will give you a guide and you can take it from there. Also, I don't know any context about the question.
- Computer applications can handle input and output at a significant rate.
- Computers were designed to handle mathematical operations and now at today's rate a single 2+2 can spit out a answer in 64 nanoseconds.
Within the Flags detail is a flag titled recursion desired. This flag shows whether or not the local DNS should continue to query other DNSs if it is not able to resolve the current query. As DNS is local, it may or may not have the enough information to allow the address to be resolved. If the recursion flag is set, the local <span>DNS will continue to query higher level DNSs until it is able to resolve the address. In short, t</span>he condition is when a flag is raised and it doesn’t have enough <span>information to allow the request.</span>
Answer is
(HMAC)
Hashed Message Authentication Code
This combines authentication via a shared secret
cryptography algorithm key with hashing. It involves the client and server each
with a private key. The client creates a unique hash per request to the server
through hashing the request with private keys.