What RRs may be used in the following situations? Explain each of them using an example. a. In the process of a forward query. b. In the process of a reverse query. c. Resolve the domain name B, which...

What RRs may be used in the following situations?

Explain each of them using an example.

a. In the process of a forward query.

b. In the process of a reverse query.

c. Resolve the domain name B, which is an alias of domain name A.

d. In mail forwarding.

When sending e-mail messages, we can put the recipients’ e-mail addresses in the Cc: and Bcc: fields. What are the differences between the two fields?