A cloud engineer is upgrading a high-performance computing cluster for the private cloud. The existing cluster is being replaced with GPU servers. A single GPU server is capable of the same teraflops output as 10 CPU servers. The current cluster configuration is as follows:
* 100 quad-core CPU servers capable of producing 100 teraflops.
* The baseline and current usage is 100%.
The new cluster was set up and benchmarked in four different configurations. Which of the following configurations will meet the baseline teraflops performance of the cluster while maintaining the current usage?

A cloud-based web store is experiencing poor website performance and unavailability. Which of the following approaches would prevent the issue without administrator intervention?

A cloud-based web proxy is blocking key sites that a business requires for operation. After validation, the sites are legitimate, and access is required for end users to complete their work.
Which of the following is the BEST solution to allow access to the sites?

Two VMs are in the same subnet 10.120.10.x/24, but the VMs cannot communicate with each other. Which of the following could be causing this problem?

A new vulnerability has been announced which affects several critical VM guests, but no patch is available. Which of the following can the administrator perform to mitigate this risk prior to a patch being released?