Computer Virtualization

Media Access Control (MAC)

Upper sub layer of Data Link

Using NAS or SAN shared storage

Allows VM to be moved quickly between host computers for high availability and load balancing

Shared (NAT) ) mode

Allows access to outside networks yet isolates the VM, preventing it from sending and receiving packets across the physical network

End Quiz 1

End Quiz 1

T/F: A VM cannot share the use of a network adapter with the host

F

T/F: In virtualized computing, a single computer is capable of supporting a single operating system.

F

Private Clouds

Hosted by the company that provides private cloud service using VM's and application maintained in their own data centers

Summarize VirtualBox

VirtualBox requires Intel or AMD x86 CPU: hardware virtualization support is recommended but not required. It requires 30 MB disk space and 512 MB of RAM. You should also check memory and disk space requirements for the running guest OS's and add these requirements to the host OS requirements

COM and LPT ports

administrative console can be used to configure a VM to use standard COM and LPT ports

Hybrid Clouds

allows and organization to configure their data center so that it can off-load certain cloud services to a public cloud server during busy times

What statement regarding the use of Hyper-V is accurate? a)Hyper-V does not include support for PATA based disk systems b)Hyper-V requires a 64-bit processor with hardware virtualization support c)Hyper-V can only be used to host Microsoft based VM's d)Hyper-V includes native support for USB devices

b)Hyper-V requires a 64-bit processor with hardware virtualization support

What is the purpose of a shadow page table when a hypervisor is used? a)It tracks the amount of I/O utilized by each guest VM b)It tracks the memory pages allocated by each guest VM c)It tracks the CPU paging performance of each guest VM d)It tracks the hard disk page file usage by each guest VM

b)It tracks the memory pages allocated by each guest VM

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? a)It is sent directly to the hardware on the host machine b)It is sent to the host OS, which then hadnles the request c)It is queued into the guest VM's I/O page table d)It is sent to the Domain 0 guest

d)It is sent to the Domain 0 guest

What type of cloud computing service provides hardware infrastructure along with necessary operating system software for running client applications? a)Software as a Service b)Hardware as a Service c)Infrastructure as a Service d)Platform as a Service

d)Platform as a Service

What virtualization technology makes it possible to avoid overhead associated with software-managed shadow page tables? a)Threaded Input/Output Translation (TIOT) b)Time Sliced Prioritizatioin Method (TSPM) c)Virtual Disk INterface Layer (VDIL) d)Second Level Address Translation (SLAT)

d)Second Level Address Translation (SLAT)

What is NOT a product designed specifically for the virtualization of applications within a VDI environment? a)Microsoft App-V b)Altiris Software Virtualization Solution c)VMware ThinApp d)VMware Fusion

d)VMware Fusion

Your work environment consists of a large number of Mac OS X based devices. The developers in your network have requested virtualization software be installed for their use. What product should you use? a)Hyper-V b)Xen c)VMware Workstation d)VMware Fusion

d)VMware Fusion

What hypervisor uses a special guest called Domain 0 that loads along with the hypervisor and is used to directly access the hardware a)VMWare Workstation b)VMWare ESXI c)Oracle VirtualBox d)Xen

d)Xen

Workstation virtualization

disk image file is usually stored on a local IDE disk drive

VM parenting

enables you to have a master (parent) copy of a virtual machine that can be distributed to other users. Closely related to snapshots

Templates

feature that allows you to rapidly deploy fully configured virtual machines. molds that contain a preconfigured, preloaded VM that that can be used to "stamp" out copies of a commonly used server or virtual desktop

Logical Link Control (LLC)

lower layer of 2 sublayers in a Data Link

Data Center virtualization

supports storing VM files on shared network drives such as Storage Area Network (SAN) or Network Attached Storage (NAS)

Module 1 Quiz

20 Questions

Public Clouds

Configured to offer services to anyone connected to the Internet with a valid account

You are employed by a cloud service provider that offers virtual machine services along with virtual switches, storage, firewalls, and other virtual devices. What type of cloud environment does your employer sell? a)Infrastructure as a Service b)Software as a Service c)Core as a Service d)Platform as a Service

a)Infrastructure as a Service

You have been tasked with creating a virtual machine that will be providing hosted services on the physical network, and possibly the Internet. What network mode should be used? a)bridged mode b)host-only mode c)local mode d)shared mode

a)bridged mode

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? a)shared (NAT) mode b)host-only mode c)local mode d)bridged mode

a)share (NAT) mode

What feature, supported by VMWare, allows the live migration of a running VM from one host to another? a)vMotion b)vTarget c)vMove d)vMigration

a)vMotion

Focus What statement regarding virtual disk types is accurate? a)A Dynamic disk is only suitable for hosts with large amounts of storage to accommodate their size b)A fixed-size virtual disk does not immediately allocate the configured size of the disk c)A dynamic disk does not immediately allocate the configured size of the disk d)A fixed-size virtual disk has reduced performance in comparison to a dynamic disk

c)A dynamic disk does not immediately allocate the configured size of the disk

What is the most commonly used form of a Storage Area Network? a)A shared, mounted Virtual Hard Disk (VHD) file b)A Network Attached Storage Device (NASD) c)A iSCSl network d)A network shared folder

c)A iSCSl

Focus An ISO image file uses what format to store a disc's contents in a single file on a computer? a)ISO 1040 b)Binary format (BIN) c)ISO 9660 d)DIsc Encoded Structure format

c)ISO 9660

The VDI disk file format is native to what virtualization platform? a)Microsoft Hyper-V b)VMware c)Oracle VirtualBox d)Microsoft Virtual PC

c)Oracle VirtualBox

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? a)The host OS b)The BIOS c)The hypervisor d)The guest OS

c)The Hypervisor