TestOut Flashcards - 10.5 Virtualization Machines
You just created a snapshot of a virtual machine while it was running. What information is saved in the snapshot? (Select two.) A. The current contents of the virtual machine's CPU registers. B. The current contents of the virtual machine's video memory. C. The current contents of the virtual machine's RAM. D. The current contents of the hypervisor host's paging file. E. The current contents of the hypervisor host's hard disk cache.
A. The current contents of the virtual machine's CPU registers. & C. The current contents of the virtual machine's RAM. Explanation: Snapshots contain the current state of a virtual machine, including the contents of its disk file, system RAM, and CPU registers. Using the snapshot file, the virtual machine can be rolled back to a prior state in time. The virtual machine's video memory is not captured in a snapshot file. The state of the hypervisor host is not captured in a snapshot.
Which term refers to a software implementation of a computer system that executes programs like a physical machine as a self-contained and autonomous system? A. Virtual machine B. Hypervisor C. Physical host D. Workload management
A. Virtual machine Explanation: A virtual machine is a software implementation ot a computer system that executes programs like a physical machine. A virtual machine functions as a self-contained and autonomous System. A hypervisor is a thin layer of software that resides between the virtual operating system(s) and the hardware. The physical host is the actual hardware that the hypervisor software runs on. Workload management relates to the portability of virtual machines.
Which term describes the layer of software that resides between the virtual operating system and the physical hardware it is running on in a virtualization environment? A. Virtual machine B. Workload management C. Hypervisor D. Virtual Hard Disk
C. Hypervisor Explanation: A hypervisor is a thin layer of software that resides between the virtual operating system(s) and the hardware. A hypervisor allows virtual machines to interact with the hardware without going through the host operating system. A hypervisor manages access to system resources such as: • CPU • storage • RAM A virtual machine is a software implementation of a computer system that executes programs like a physical machine. A Virtual Hard Disk is a disk file used by a virtual machine. Workload management relates to the portability of virtual machines.
The sales engineers in your organization use virtual machines to model deployments in the lab prior to actually implementing them in your customers' physical environments. You are concerned that a malicious insider could gain access to the sensitive data on these virtual machines. What should you do? (Select two.) A. Create snapshots of each virtual machine an a regular schedule. B. Configure the hypervisor to use paravirtualization. C. Configure the hypervisor to use full virtualization. C. Use file and folder permissions to restrict access to the virtual hard disk files. D. Disable the USB ports on the hypervisor hosts.
C. Use file and folder permissions to restrict access to the virtual hard disk files. & D. Disable the USB ports on the hypervisor hosts. Explanation: Virtual machine portability represents a security issue. Because virtual machines are easy to copy, an attacker, such as a malicious insider With a USB drive, can very easily make a copy of a virtual machine that contains proprietary or sensitive information. To prevent this, you should implement file system and share permissions that restrict access to the virtual machine disk files. You should also lock the hypervisor host when not in use. You should also consider disabling the USB ports on the hypervisor host. Full and paravirtualization are mechanisms that define how physical hardware is accessed by virtual machines running on a hypervisor host creating snapshots of the virtual machines protects them from disasters and malware infections, but it doesn't secure the data within the virtual machines.
