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