After running monthly capacity reports on private cloud hosts, an engineer decides the CPU overcommitment ratio on the cluster is affecting performance on the VMs. If the engineer is trying to minimize costs, which of the following actions is the engineer MOST likely to take?

A company is deploying a new instant messaging app to allow for communications with external vendors. Each entity will host its own version of the application, but users must be able to talk between the companies. Which of the following security techniques would MOST likely be used to allow this to happen?

A cloud administrator reports a problem with the maximum number of users reached in one of the pools.
There are ten VMs in the pool, each with a software capacity to handle ten users. Based on the dashboard metrics, 15% of the incoming new service requests are failing. Which of the following is the BEST approach to resolve the issue?

A Big Data analytics company wants to ensure its data is protected at rest.
Which of the following is the BEST hardware-based solution?

The end users of a SaaS application use multiple services from the same application. A unique login ID and password are required for each user to access each service.
Which of the following access control methods should be implemented by the SaaS application vendor to simplify the access to its services?