Simon is a former employee of Trinitron XML Inc. He feels he was wrongly terminated and wants to hack into his former company’s network. Since Simon remembers some of the server names, he attempts to run the axfr and ixfr commands using DIG. What is Simon trying to accomplish
here?

A.
Perform a zone transfer

B.
Perform DNS poisoning

C.
Send DOS commands to crash the DNS servers

D.
Enumerate all the users in the domain