19. The guest integration services package offers a function that implements a service in which the parent partition sends regular heartbeat signals to the child partitions, this is called 20. In Hyper-V, what do you call the captured image of the state, data, and hardware configuration of a virtual machine at a particular moment in time? 21. What type of array connects to the server by using an external SCSI cable and requires the server have a SCSI host adapter that provides the other connection to the array? 22. You can make a SAN into a high availability technology by connecting redundant servers to the same network, enabling them to access the same data storage devices, when this is done it is called? 23. Before connecting new virtual machines in Hyper-V in Windows Server 2012 R2 using the Virtual Switch Manager, what must you do? 24. NIC teaming option enables an adapter to add what to other adapters in the same guest operating system in a NiC teaming arrangement? 25. What Application-layer protocol enables you to allocate IP addresses dynamically from a pool