Network+ Module 7 Virtualization
1. Virtualization allows us to use a single systems hardware to run multiple "virtual machines" or virtualized computers within it and the software that enables virtualization is called a Hypervisor. Which type of Hypervisor is installed directly on the bare metal hardware of a server? A. Type 1 Hypervisor B. Type 2 Hypervisor
(1) A. Type 1 Hypervisor Explanation: A Type 1 Hypervisor is called a "Bare Metal" Hypervisor because it is installed directly onto the bare metal hardware of a system. This means that a Type 1 Hypervisor serves as the main Operating System running all the hardware and is not installed under a separate operating system. VMWare vSphere/ESXi, Microsoft Hyper-V and Citrix XenServer are examples of Type 1 Hypervisors and are used to run virtualization environments inside companies and data centers. Type 2 Hypervisors are referred to as "Hosted" Hypervisors and are installed directly under a host Operating System such as Windows, Mac OSX, or Ubuntu. With Type 2 Hypervisors the Hypervisor is an application running within the Host OS.
2. Type 2 Hypervisors are for running virtual machines on a local/personal computer, while Type 1 Hypervisors are used to deploy large scale virtualization environments inside companies and data centers. A. True B. False
(2) A. True Explanation: Type 1 Hypervisors are used inside data centers while Type 2 Hypervisors are used to set up virtual machines on a local computer.
3. Virtual machines use a ______________ to connect to the virtualized switching environment. A. Virtual Router B. Virtual Firewall C. Virtual NIC D. Virtual Server
(3) C. Virtual NIC Explanation: Just like regular computers need a physical Network Interface Card to connect to the network, virtual machines use a virtual Network Interface Card to connect to the network.
4. To configure VLANs inside of a virtualized environment which device is used? A. Virtual Server B. Virtual Firewall C. Virtual Router D. Virtual Switch
(4) D. Virtual Switch Explanation: Virtual Switches are necessary components within a virtualized environment for connecting virtual machines into the network. Just as you would set up VLANs on a regular switch, the same can be done with virtual Switches for setting up VLANs inside a virtual environment.
5. The main benefits of virtualization are. (choose all that apply) A. Better use of hardware resources B. Power savings and reduced footprint C. Recovery D. Flexibility
(5) A. (Better use of hardware resources), B. (Power savings and reduced footprint) C. (Recovery), D. (Flexibility) Explanation: All of the above are benefits of implementing virtualization.
