A network intrusion detection system $($IDS$)$ sends an alert about a sudden increase in outgoing traffic to the internet. Technicians identify a small number of computers streaming large volumes of traffic to remote IP address. This appears to have started at the same time on all of the computers.What is most likely the problem?The network is under a DDoS attack.The computers are infected with malware.The computers are backing up data to the cloud.A network switch is malfunctioning.