How can a hypervisor virtual switch increase the efficiency of a physical network?

A company has just experienced an outage in their environment as a result of a configuration change that propagated across the entire environment.
What would you recommend to prevent similar outages in the future?

Which consolidation approach involves consolidating at the technology layer?

A hypervisor running several virtual servers crashes, and all virtual servers are restarted on another hypervisor.
When the applications restart, they replay log files to bring data up to date.
Which type of consistency does this situation represent?

To address security concerns when configuring a server, why should you avoid the use of nonpersistent disks?

Governance, risk, compliance, and security are all related and yet they differ.
Which two attributes are governance attributes?

In the CAP Theorem, what is Consistency?

A customer wants to ensure that their critical application can fail over to another physical host within the cluster without disruption.
Which feature should be utilized?

An administrator has implemented a hypervisor cluster with high availability enabled. They are expecting that if any of the physical servers fail, the virtual servers will be transparently migrated to other hypervisors in the cluster.
When the first hypervisor failure occurs, all of the hosted virtual servers appear offline to users as they are moved to another host.
What feature should the administrator have implemented to achieve his goal?

A company moved to a new building that contains a fully virtualized data center. They purchased a building 10 km away and decide to build a second data center at that location. The new data center will be identical to the first, and applications and services will be mobile between the locations.
Which WAN connectivity option would provide both the best performance for virtual server mobility across sites?