Answer:Denial of service
Step-by-step explanation:Denial of service is the type of attack that is caused to the computer attacks. These attacks basically cause the circumstances such as difficulty in accessing of the website or resource, accessing particular computer system , creation of the traffic in network, This attack occurrence stops or create difficulties for the legal person to access the network .
Therefore, there is the occurrence of the Denial of service(DoS) in the bank's computer network.