Homework three systems admin 3605, Assignments of Computer Science

Download Homework three systems admin 3605 and more Assignments Computer Science in PDF only on Docsity! Laterrica Thomas 1) In your own words, thoroughly state what server virtualization accomplishes. a) Allows each server to run the operating system and applications itself. The server virtualization acts its own unique physical device. 2) Give two reasons why virtual servers are more flexible than bare-metal servers. a) Virtual servers allow flexibility and scalability unlike bare metal servers. Problem 2 – 14 points 1) What is a hypervisor? What is a hypervisor responsible for? a) A virtual machine monitor that allows one host computer to share resources with multiple guests virtually. This software creates and or runs virtual machines. 2) What is full virtualization? How does full virtualization differ from paravirtualization? a) A method of virtualization used to create a VME that accurately simulates the underlying hardware. Binary translation and a direct approach are the techniques utilized with Full Virtualization. However, Paravirtualization performs actions at compile time using hypercalls. 3) Describe the difference between Type 1 and Type 2 Hypervisors. a) Type 1 runs directly without supporting OS while type 2 utilizes user-space applications on another OS. 4) Name a popular Type-2 Hypervisor. a) Oracle virtual box is deemed to be popular for type 2. 5) Name a popular Type-1 Hypervisor. a) Microsoft Hyper V. Problem 3 – 14 points 6) What is live migration? a) VM’s can move from one physical host to another host with limited disruptions. 7) Describe two scenarios in which you, as a systems administrator, would use live migration. 8) What is a virtual machine image? a) The virtual servers are initiated from images that are configured by operating systems. 9) Are virtual images portable among systems, even if their actual hardware differs? a) Yes due to virtual machines are hardware independent. 10)Can virtual images be ported among various hypervisors? a) Yes, Applications are run inside virtual machines by guest operating systems, which are managed by hypervisors and run on virtual hardware. Building immutable VM images is possible.