Which cloud actor provides connectivity and communication of cloud services between the provider and the consumer?

Which cloud service model is represented in the exhibit?

What is the function of a monitoring and alerting tool?

A cloud provider installs a virtual firewall on a hypervisor to reduce the scope of a security breach when there is already a network-based firewall deployed in the cloud environment.
Which strategy did the cloud provider use to mitigate the risk of security threats?

What is a responsibility of the Service Manager role?