A production IaaS database server contains PCI data and is a critical business capability. The CAB approved a normal code change release for QA and PROD to occur 30 minutes apart and to last a maximum of one hour. The cloud DBA team is 45 minutes behind schedule, so they miss the start time on QA.
As the cloud DBA, which of the following is the BEST course of action to apply the code change?

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 company has instituted a cloud solution where the solution consolidates resources between the human resources and engineering departments. The combined resources are available to be assigned dynamically to each of the two departments without any visible impact on performance to the users.
Which of the following terms BEST describes this cloud characteristic?

A company provides IaaS services. Which of the following disk provisioning models for creating standard template should the company use to provision virtual instances?

Which of the following terms describes a system where multiple storage controllers allow access to data in a cloud environment where it appears as a single storage system to the user?