Which of the following is the most common attack on DNS servers?

A.
Poisoning
B.
Flood
C.
Ping
D.
Masquerading
Explanation:
When an attacker corrupts a DNS server by changing the host-to-IP
relationship information, the table is said to be poisoned. It is a common attack on
DNS.
I choose A
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Dead written subject matter, thanks for selective information.
http://www.bastcilkdoptb.com/
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