Virtualization Midterm
Moore's law states that processing power triples every eighteen months? True or False
True
Today, companies are deploying more virtual machines than physical server's. True or False
True
Virtualization was initially developed and used on computers during which decade? a. 1960's b. 1970's c. 1980's d. 1990's
a. 1960's
a terabyte is equivalent to __________ gigabytes. a. 1000 b. 1024 c. 10,240
b. 1024
most virtual servers are often configure with _________ memory and processor resources than their physical counterparts. a. the same b. more c. less
c. less
____________is when multiple entities are all simultaneously trying to use the same resource causing performance to suffer.
contention
A virtual machine can: a. control only a small portion of the host server resources b. control resources allocated by the hypervisor but see all the resources c. can only resources allocated by the hypervisor d. act as a traffic cop to prevent resource contention
c
One way that virtual servers are sized differently than physical servers is that: a. they need to be configured with more memory than their physical counterparts. b. a cd/dvd/drive is a mandatory device c. they do not need to be size for long term growth when they are first deployed. d. they can only have one virtual CPU
c
Clones are VM's that already contain an operating system, are sometimes preloaded with application software, and are used to create new virtual machines: true or false
false
Configuration best practices states to create a new virtual machine with more resources than necessary, and remove them if it proves to be oversized. true or false
false
Hyper-threading does not work in a virtualization environment. true or false
false
Hyperthreading is an AMD technology that improves performance by allwoing more than one set of instruction to be executed on a processor. true or false
false
Hypervisor control memory and processor resources while virtual machines control their own network and storage resources. true or false
false
Hypervisors abstract all of the hardware resources from the virtual machines, including storage and networking resources. Server virtualization is limited to the X86 processor class of hardware. true or false
false
If you install the VMware tools on a Linux system, the program that it runs as a system daemon is name vmtools-daemon. true or false
false
If you only had a physical DVD of the Red Hat Linux Installation media, you would choose use virtual drive as the connection type for the CD/DVD device in order to boot from the DVD when the virtual machine was powered on. true or false
false
Linux operating system should not be modified once the installation is complete. true or false
false
Microsoft windows is easy to virtualize while the Linux operating system is much more difficult to virtualize. true or false
false
Once a copy is created from a virtual machine's files, the new clone can be powered on and safely deployed in the environment without alterations. true or false
false
One main reason that linux is being used more often as the operating system for production servers is due to its better performance characteristics than other operation system. true or false
false
Only limited application types can be run in a virtual machine. More complex systems like databases and email services cannot be virtualized. true or false
false
Personalization features like wallpapers and screen savers are important to a virtual machine. They are important because they take no resources from the VM. true or false
false
The OVA standard provides a platform and vendor-neutral format to bundle and deploy virtual machines. true or false
false
The installation of VMware tools is mandatory in a VMware environment: true or false
false
Virtual Machines require customized operating system versions: true or false
false
Virtual machines are limited to running only microsoft windows and red hat linux as their operation systems. true or false
false
a hypervisor is a specialized hardware device that facilitates virtualization. true or false
false
a type-1 hypervisor runs on top of an operationing system to proovide resources to the virtual machines it supports. true or false
false
suspending an application is mandatory during a physical-to-virtual conversion process to ensure all changes are migrated to the newly created virtual machine correctly. true or false
false
Hot swapping is when you perform a P2V process on a physical server that is still running and the application is servicing users. true or false
false not called hotswapping
Which information technology trend helped drive the need for virtualization? a. the expansion of Unix and Linux use for applications b. the growing expense and decline of mainframe computer use. c. the explosive growth of Microsoft Windows on servers in corporate data centers. d. the constantly decreasing capabilities of corporate servers due to Moore's Law.
C.
The most time-consuming step during the Windows installation process is usually:
Copying and unpacking files from the installation media to the disk storage
One reason to create a virtual machine with multiple multi-core vCPUs is:
In some cases, licensing allows operating systems to use more resources with the multi-core vCPUs
VMM stands for the term?
Virtual machines manager
_____________ allows a user to return a virtual machine to a prior state in time. a. clones b. templates c. appliance d. snapshots
d. snapshots
Which of the following is not an example of a server operating system: a VMWare ESXi b Oracle c. Microsoft Windows Server d. Red Hat Enterprise Linux
a. VMWare ESXi
The __________hypervisor is an example of an open-source project. a. XEN b. Microsoft 2012 server c. vmware d. red hat
a. XEN
The __________ is the measure of how servers are condensed as a result of virtualization. a. consolidation ratio b. containment ratio c. condensation ratio d. contrivance ration
a. consolidation ratio
the new virtual machine wizard of vmware workstation allows you to install an operationg system from all of these except: a. floppy b. iso file c. cd d dvd
a. floppy
Companies use virtualization to do all of the following except: a. reduce the amount of application in corporate datacenters b. reduce the amount of electricity they consume in their data centers. c. reduce the amount of datacenter floor space used. d. reduce the number of servers in datacenters.
a. reduce the amount of applications in corporate datacenters
Examples of services that would be disabled in a virtual machine are power management and ________________ a. wireless connectivity b. display c antivirus d database processes
a. wireless connectivity
Enabling hyper-threading will usually improve performance by:
about 30%
When Linux partitioned the 20GB allocated for disk storage, how much was reserved for boot software? a 2GB b 500 mb c. 17.96 GB d. 20 GB
b 500 mb
The elapsed time for a P2V process to complete is directly related to: a. The amount and type of processor in the physical server b. the number and size of disks that need to be processed c. the number of network cards in the physical server d. the amount of memory in the physical server
b.
a more modern name for a virtual machine manager (VMM) is a ________________. a. secure hyperlayers b. hypervisor c. virtual machine d. hypersystems
b. hypervisor
VMware tools are installed in a virtual machine for all except: a. enhanced user experience b. memory utilization c. improved VM management d. improved vm performance
b. memory utilization
A virtual machine that is created expressly for the purpose of being a standardized mold to creat new VM's is called a : a. clone b. template c. snapshot d. applicance
b. template
the first commercial x86 hypervisor was released by: a. oracle b. microsoft c. vmware d. Xen
c. Vmware
a new virtual machine created by copying an existing virtual machine is called a _____________. a. snapshot b. template c. clone d. appliance
c. clone
_____________ is when companies use virtualization to deploy all new application as virtual machines. a. isolation b. construction c. containment d. secure partition
c. containment
When loading an operating system into a virtual machine, that virtual machine: a. must not be powered on for the process b. must have 20% more resources allocated than the operating system minimum requirements state c. must be powered-on and have the installation media as the boot device d. must have an active internet connection
c. must be powered-on and have the installation media as the boot device
Linux is considered to be a __________ operating system. a. proprietary b. closed-source c. open-source d. only useful to scientists
c. open source
Which of the following is not a process when dealing with virtual infrastructures: a p2v b v2v c p2p d v2p
c. p2p
Which of the following is not one of Popek and Goldberg's properties that a VMM would need to exhibit in order to be considered efficient? a. fidelity b. isolation c. persistance d. performance
c. persistence
x86 processor architecture provides four different levels of command execution to provide security. This levels are often referred to as_________. a. stages b. virtual partitions c. rings d. layers
c. rings
When a virtual machine's operating system issues a shutdown command, what happens?
c. the hypervisor shuts down the machine
A host server has 4 processors, each with 8 cores. If you can allocate 8 vCPUs per pCPU, how many vCPU's can be allocated? a. 128 b. 4 c. 32 d. 256
d. 256
The lease privileged ring in the x86 processor architecture is ring; a. 0 b. 3 c. 1 d. 7
d. 7
The protocol that helps multiple servers keep their system time synchronized is: a. est b. stp c. gmt d. ntp
d. ntp
The maximum number of vCPU's that can be configured in a single virtual machine is?
depends on vendor
A virtual desktop is a specialized VM's that contain an operating system and are preloaded and preconfigured with an application. true or false
false
A virtual machine that is running on a host with an AMD processor can be live migrated to a host with an intel processor. true or false
false
Adding vCPU's is usually the best method to resolve performance problems in a virtual machine. true or false
false
All virtual machine to virtual machine communications must take place across the physical network, even if the two virtual machines reside on the same physical server. true or false
false
As of 2012, the dominant server operating system on the x86 platform was Linux. true or false
false
Best practice is to configure two vCPU's for a new virtual machine. true or false
false
Both containment and consolidation strategies reduce the number of physical servers in a datacenter. true or false
true
Guest or VM is another name for a virtual machine. true or false
true
If you install the VMware tools on a linux system, the program that it runs as a system daemon is VMTOOLSD. true or false
true
Modern CPU's are often a package of multiple processors. These individual processors are also know as cores. true or false
true
NFS, fibre channel, ans iSCSI are all examples of storage connection types. true or false
true
On linux systems, a system process is also known as a daemon. true or false
true
One way to power on the virtual hardware to begin installation, choose the play virtual machine option from the virtual machine menu: true or false
true
Performance metrics should be collected from both physical and virtual servers in order to understand and monitor the resources being consumed by the workload. true or false
true
Possible changes to virtual CPU's in a virtual machine include only the amount of virtual CPU's. true or false
true
The consolidation ratio is calculated by measuring the number of virtual machines running on a physical server. true or false
true
The windows 7 installation type for a new installation of Windows is custom. true or false
true
Type-1 hypervisor runs directly on the server hardware to provide resources to the virtual machines it supports. true or false
true
VMware player or Vmware Workstation are examples of Type-2 hypervisors. true or false
true
Virtual machines can be configured with multiple processors and multiple cores per processor, just like a physical macine. true or false
true
Virtual machines that run on type-1 hypervisors are considered to be more secure and better performing than those running on type-2 hypervisors. true or false
true
When going through the installation of Windows in a virtual machine, the allocation and formatting of disk storage is identical to the process in a physical server. true or false
true
another name for a virtualization server is a: a. virtual machine b. hypervisor c. guest d. host
virtual machine ?
