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Runningi Head:i VIRTUALIZATIONi i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i 1
CIS512i Weeki 4i Assignment
Strayeri University
Mayi 1,2022
VIRTUALIZATIONi i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i 2
1. Definei virtualization.i
Thei virtualizationi ofi machinesi andi networksi isi ai newi phenomenoni thati isi supportedi byi thei
deploymenti ofi high-performancei softwarei thati isi readyi toi takei thei placei ofi bulkyi hardwarei ini
organizationsi (Liui eti al.,i 2008).i Virtualizationi isi ai moderni processi throughi whichi ani extrai
softwarei layeri isi addedi betweeni existingi hardwarei layersi ofi machinesi asi ani abstractioni layer.i Thisi
allowsi organizationsi toi shifti manyi ofi theiri tasksi andi processesi ontoi cloudi spacei ori softwarei
capabilities,i thusi reducingi dependencei oni hardwarei components.i Thei processi ofi virtualizationi isi ai
needi fori moderni informationi managementi systemsi thati havei increasedi thei needi fori storagei spacei
andi securityi levels.i Thei existingi physicali systemi hasi ai softwarei abstractioni layeri thati protectsi thei
components.i Thei softwarei abstractioni layeri ofi thei virtuali machinei isi calledi ai hypervisor.i Thei
hypervisori actsi asi ai Virtuali Machinei Monitor.i
2. Justifyi thei needi fori organizationsi toi usei virtualization.i
Therei isi ai needi fori virtualizationi ini present-dayi organizationsi asi mosti ofi thei organizationsi
arei gettingi digitizedi andi transformed.i Therei isi ai needi fori advancedi informationi systemsi ini present-
dayi organizations.i Virtuali machinesi cani bei thei answeri toi installingi advancedi leveli virtuali
machinesi ini organizations.i Fori example,i ai virtuali machinei andi itsi efficiencyi doi noti dependi oni anyi
physicali systemsi likei hardware.i Therefore,i ani organizationi cani installi multiplei virtuali machinesi
oni ai singlei seti ofi hardwarei (Pearcei eti al.,i 2013).i Thisi benefitsi thei organizationi asi multiplei virtuali
machinesi takei lessi spacei thani hardwarei systemsi buti helpi increasei thei productivityi ofi thei
organizationi manifold.i Thei installationi ofi virtuali machinesi reducesi thei needi fori morei energyi andi
resourcesi ini thei organization.i Therefore,i iti helpsi ini thei optimizedi usei ofi resourcesi andi energyi soi
thati thei organizationi savesi moneyi andi time.i Thei usei ofi virtuali machinesi andi networki reducesi thei
needi fori physicali systemsi asi mosti ofi thei workloadi cani bei consolidatedi oni ai fewi high-performancei
VIRTUALIZATIONi i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i 3
virtuali machines.i Ai virtualizedi networki cani providei ai moderni skeletoni toi ai legacyi appi systemi soi
thati productivityi isi amplified.i
3. Evaluatei twoi virtuali technologies/solutions.
Therei arei manyi virtuali technologyi platformsi andi solutionsi oni whichi organizationsi dependi
on.i Fori example,i XENi isi ani open-sourcei solutioni thati helpsi ini thei virtualizationi ofi systems.i Thei
solutionsi assistsi ini parai virtualizationi asi welli asi hardware-assistedi virtualization.i Withi thei helpi ofi
thisi solution,i multiplei virtuali machinesi cani bei integratedi intoi ai singlei hardwarei platform.i Anotheri
virtuali machinei monitori thati worksi towardsi thei virtualizationi ofi systemsi isi thei KVMi software.i Iti
isi ai hypervisori thati supportsi fulli virtualizationi processesi andi partiali virtualizationi withi thei helpi ofi
hardwarei assistance.i Thei KVMi softwarei isi alsoi ai versatilei andi efficienti virtuali machinei thati
transformsi ani organization’si worki processes.i Thei KVMi softwarei worksi withi multiplei guesti
operatingi systemsi allowingi theiri integrationi withi existingi hardwarei components.i Iti isi ai Linuxi
basedi VMMi thati alsoi worksi withi Windows.i Thei KVMi softwarei isi segmentedi intoi ai kerneli andi
useri space.i Thei KVMi softwarei completesi virtualizationi tasksi throughi thei Kernel.i Oni thei otheri
hand,i thei useri spacei allowsi thei processingi ofi guesti operatingi systemi requests.i
4. Determinei alternativesi toi virtualization.
Ai newi andi upcomingi alternativei toi virtualizationi isi thei usei ofi containerizedi solutions.i
Containerizationi cani helpi organizationsi ini segregatingi andi runningi multiplei applicationsi oni onei
systemi ori cloudi platform.i Containerizationi cani bei thei higheri andi improvisedi versioni ofi
virtualizationi fori ITi organizationsi andi professionalsi (Bazargani eti al.,i 2012).i Whilei virtualizationi
isi thei virtuali shiftingi ofi systemsi toi cloudi spacei ori digitali space,i containerizationi focusesi oni thei
virtualizationi ofi certaini applications.i Iti isi ai smalleri andi morei efficienti processi thani virtualizationi
thati doesi noti takei muchi timei ori capabilities.i Thei useri cani virtualizei andi shifti multiplei applicationsi
VIRTUALIZATIONi i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i 4
toi softwarei containersi andi shifti themi ontoi onei operatingi systemi fori betteri performancei andi
accessibility.i Thei overheadi fori thei containerizationi processi reducesi byi manifoldi asi comparedi toi
virtualization.i Organizationsi arei lookingi towardi thei usei ofi advancedi containersi insteadi ofi virtuali
machinesi asi futurei alternatives.i Iti isi alsoi possiblei thati virtualizationi andi containerizationi willi
flourishi togetheri ini thei future.i
5. Researchi securityi risksi associatedi withi virtualizationi andi potentiali countermeasures.
Althoughi virtuali machinesi reducei thei necessityi fori hardwarei componentsi andi securityi risksi
associatedi withi thei usei ofi hardware,i therei arei somei particulari securityi issuesi thati stilli arisei withi
VMi applications.i Fori example,i reversei engineeringi capabilitiesi cani providei accessi toi encryptioni
keysi andi securityi algorithmsi soi thati thei VMi cani bei easilyi compromisedi (Liui eti al.,i 2008).i Onei ofi
thei countermeasuresi thati VMi designersi andi usersi cani puti isi thei segmentationi ofi ai virtualizationi
infrastructurei withi protectioni ringsi aroundi whichi newi securityi provisionsi cani bei deployed.i Thei
usei ofi multiplei protectioni ringsi toi protecti thei differenti abstractioni layersi fromi vulnerabilitiesi isi ai
strategyi thati worksi ini reducingi securityi threatsi towardsi virtuali systemsi andi networks.i
VIRTUALIZATIONi i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i 5
References
Bazargan,i F.,i Yeun,i C.i Y.,i &i Zemerly,i M.i J.i (2012).i State-of-the-arti ofi virtualization,i itsi securityi
threatsi andi deploymenti models.i Internationali Journali fori Informationi Securityi Researchi
(IJISR),i 2(3/4),i 335-343.
Liu,i C.,i Sia,i C.i L.,i &i Wei,i K.i K.i (2008).i Adoptingi organizationali virtualizationi ini B2Bi firms:i Ani
empiricali studyi ini Singapore.i Informationi &i management,i 45(7),i 429-437.
Pearce,i M.,i Zeadally,i S.,i &i Hunt,i R.i (2013).i Virtualization:i Issues,i securityi threats,i andi solutions.i
ACMi Computingi Surveysi (CSUR),i 45(2),i 1-39.
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