Quiz 8 Name Anusha Tamanampudi CMPE 283 1 5 points Describe how live migration of a virtual machine between hosts works Be specific more points will be awarded based on the completeness of your answer Basically the Virtual Machine is made of the components Virtual Machine Storage and the Virtual Machine Configuration When a live migration occurs the Virtual Machine s state and configuration will be copied from one of the physical host to another In this process the Storage is migrated Internally migration refers to moving a guest Virtual Machine from one QEMU process and making it run on top of another During this process the guest is still running The guest will not get affected by the change in hypervisor This migration involved different variables like network bandwidth network latency availability of storage etc Live migration is transferring the guest state from one hypervisor to another and guest is not able to realize the change This process might degrade the performance but is useful for balancing the load or in maintenance We can also have a checkpoint VMs to check the load on the VM 2 5 points Describe which operations need to be intercepted for application virtualization solutions and how this interception is performed Be specific more points will be awarded based on the completeness of your answer Application virtualization is the technology that encapsulates the underlying operating system on which it is executed It is is layered on top of other virtualization technologies such as storage virtualization to allow computing resources to be distributed dynamically in real time This virtualization is done when you need to make sure that changes modifications made by an application are confined to its own private copy of the system With application virtualization the application does its own set of configurations on demand and executes its settings in private This leaves the host operating system and existing settings unaltered Operations to be intercepted 1 Delete 2 Delete User 3 load device driver 4 create new process 5 list files in folder 6 reboot system 7 set file permission 8 query file attribute 9 create file 10 open file 11 create user How this interception is performed 1 kernel mode doing changes in kernel code itself 2 user mode LD PRELOAD