The Help Desk Is Receiving Reports of Intermittent Connections to a Server

Multiple Choice

The help desk is receiving reports of intermittent connections to a server. A help desk technician suspects the server is unable to establish a three-way handshake due to a DoS attack. Which of the following commands should a network administrator use to confirm the help desk technician's claim?

A) nmap
B) arp
C) tcpdump
D) dig