Which one of the following statements is considered a DNS "blind spot?"
A. A DNS blind spot is defined as the inability to change the CX DNS records for outbound requests.
B. A blind spot is the failure to properly monitor DNS activity for security purposes.
C. DNS blind spots are created when a root-level DNS server is under a DDos attack.
D. Blind spots are caused by improper or lack of proper software patching to DNS BIND servers.
E. DNS blind spots are a direct result of DoS port scanning of UDP port 53.
