Virtualization Ch 1 questions with correct answers

When a Xen based guest VM makes a request for a hardware resource, such as reading from a disk, where is the request sent to? - Answer It is sent to the Domain 0 guest. What component of virtualization controls all physical memory, and thus has the ability to make any unused memory pages in each guest available for other virtual machines or the host computer? - Answer The hypervisor What statement regarding virtual disk types is accurate? - Answer A dynamic disk does not immediately allocate the configured size of the disk. You have been tasked with creating a virtual machine that will require access to the Internet, but should be prevented from sending and receiving packets directly from the physical network. What network mode should be used? - Answer shared (NAT) mode What open standard was developed as a result of collaboration between NASA and Rackspace? - Answer OpenStack What feature, supported by VMWare, allows the live migration of a running VM from one host to another? - Answer vMotion What type of cloud computing service provides hardware infrastructure along with necessary operating system software for running client applications? - Answer Platform as a Service