E027 Virtualization and IaaS carries the banner number ITCL 3300 and is worth 3 competency units. It covers the foundational principles of virtualization technologies, the benefits organizations get from them, and how those technologies are implemented in practice inside Infrastructure as a Service environments. E027 and ITCL 3300 are one requirement. Understanding virtualization properly is what makes cloud stop feeling like magic, because every abstraction a provider sells is built on the ideas this course teaches.
One physical machine, many pretend ones, and the cost of pretending
Virtualization is the practice of presenting logical resources that are not tied one to one to physical ones. A hypervisor divides a physical server into machines that each believe they own hardware. Storage virtualization presents volumes that span or subdivide real disks. Network virtualization presents segments that do not correspond to physical cabling. Once you see the pattern, the rest of the syllabus is a set of variations on it.
The benefits follow directly from the abstraction rather than from any product. Consolidation, because physical servers sit idle most of the time and logical ones can share. Isolation, because a fault or a compromise in one guest is contained. Speed, because provisioning becomes a software operation rather than a purchase. Portability, because a machine that does not depend on specific hardware can move. Every claimed benefit in your writing should trace back to one of those properties.
The costs are equally real, and student work usually skips them. Sharing physical resources means guests contend for them, and a noisy neighbor can degrade a machine that is configured perfectly. Overcommitting resources is efficient until demand arrives at the same time on every guest. Each virtual layer adds a small amount of overhead. And consolidation concentrates risk, because more workloads now depend on the same physical host.
Infrastructure as a Service is virtualization sold as a service, and the boundary it draws is the reason it matters. You get compute, storage and networking as logical resources and you remain responsible for the operating system and everything above it. Students who can state that boundary precisely handle every responsibility question in the rest of a cloud program more easily.
Containers deserve a clear distinction from virtual machines: they share an operating system kernel rather than each running their own, which makes them lighter and changes their isolation properties. Blurring the two is a frequent error. WGU marks this work Competent or Not Competent, keeps no letter grades and no ordinary grade point average, and sets the course at 3 competency units inside a six month term charged at one rate.
Turning scored aspects into an implementation document plan
If your version of E027 is assessed by a performance assessment, the aspects your evaluator scores are the section plan. WGU requires a score of 2 in each aspect for a task to pass and judges each aspect separately, so a strong explanation of principles will not carry a thin implementation section.
Budget the words first. Imagine a rubric holding six scored aspects against a target near 2,050 words. Reserve 160 words for the organization and its current infrastructure, and 120 for the close, leaving 1,770. Two aspects that ask you to design and justify an implementation take 405 words each, or 810, because each needs the requirement, the design, the sizing logic and the tradeoff accepted. The four remaining aspects, typically covering principles, benefits, risks and management, take 240 each for 960. Adding 810 to 960 gives 1,770 exactly.
Whenever you name a benefit, pair it with the cost that comes with it in the same paragraph. Consolidation with contention. Overcommitment with peak risk. Rapid provisioning with sprawl. That pairing is the single easiest way to lift a submission from descriptive to analytical, and it fits the way these aspects are usually written.
Reserve budget for capacity reasoning. A section that shows you can add up what the guests need, compare it to what the host provides, and say what headroom you left is short, quantitative and far more convincing than a paragraph asserting the design is sufficient.
Shape for a virtualization implementation document
E027 deliverables usually propose virtualizing something or building on infrastructure services. These proportions carry that document.
| Section | What belongs there | Share |
|---|---|---|
| Current infrastructure | What exists today, what it costs to run, and what problem prompts the change. | 12 percent |
| Principles applied | The virtualization concepts in play here, explained through this environment. | 15 percent |
| Implementation design | Hosts, guests, storage and networking, with sizing and placement. | 22 percent |
| Capacity and performance | What the guests need in total, what the hosts provide, and the headroom left. | 16 percent |
| Benefits and their costs | Each benefit claimed, paired with the tradeoff it introduces. | 15 percent |
| Management and risk | Patching, backup, sprawl control, and what happens when a host fails. | 14 percent |
| Close | The constraint most likely to bite first and how you would detect it. | 6 percent |
Sourcing technical claims about platforms
Virtualization claims split into three kinds. How the technology works in principle is a claim for technical references and textbooks, and those sources age slowly. What a specific hypervisor or service supports is a documentation claim, cited with a version or a date, because limits and defaults change. What an organization gained from adopting it is a claim for a case study or research, and it needs attribution rather than an unsourced percentage.
Be careful with efficiency claims. Consolidation ratios and utilization improvements vary enormously by workload, and a number quoted without its context is close to meaningless. If you use one, say what workload it applied to and where it came from. If you do not have a sourced figure, describe the mechanism instead, which is more durable and cannot be wrong.
Where you present a capacity calculation, show the inputs. Total the resources the guests require, state the physical capacity available, name any overcommitment ratio you are assuming, and show the arithmetic. Two short tables and three sentences of explanation carry more weight in this course than a page of prose about efficiency.
Use the citation style your task specifies, cite at the point of the claim, and label any diagram of your host and guest layout so the text can refer to it precisely. A diagram nobody references is not evidence.
What earns Competent, and what comes back
Competent submissions explain principles through the described environment rather than in the abstract, size the implementation with visible arithmetic, pair every benefit with its cost, and say what happens when a host fails. They also distinguish virtual machines from containers correctly when both appear.
Returns follow recognizable shapes. The paper defines virtualization at length and never implements anything. Benefits are listed with no costs, which reads as marketing. Capacity is asserted rather than calculated. Failure of a host is not addressed, leaving the concentration of risk that consolidation creates unexamined. Or containers and virtual machines are treated as interchangeable, which tells an evaluator the central distinction has not landed.
A quick self check: count the benefits you claimed and the costs you named. If the first number is larger, the analysis is one sided, and the aspect asking you to evaluate rather than describe is the one that will come back.
A WGU performance assessment can be revised and resubmitted with the grade unaffected, so submit once each aspect has a genuine answer. If your section carries an objective assessment as well, that exam is proctored and our boundary does not move: preparation only, meaning concept drills, capacity practice and an honest read of your preassessment result. Sitting an assessment for a student is something we refuse, we take no part while one runs, and portal credentials never reach us.
Benefits listed, tradeoffs missing?
Send the E027 rubric and your scenario. We rebuild the document with paired benefits and costs, a visible capacity calculation and a host failure plan.
Six mistakes that cost time in E027
- Defining instead of applying. Explain the principle through the described environment, or the implementation aspect stays unanswered.
- Benefits without costs. Consolidation brings contention, overcommitment brings peak risk. Pair them in the same paragraph.
- Asserted capacity. Add up what the guests need, state what the hosts provide, show the headroom. Arithmetic beats adjectives.
- Ignoring host failure. Consolidation concentrates risk. Say what happens to the guests when a host is lost.
- Confusing containers with virtual machines. Shared kernel against separate operating systems changes weight and isolation both.
- No sprawl control. Fast provisioning creates unused machines. Name who reviews them and how often.
Three questions students ask about E027
Do I need a lab to understand this material?
Where does Infrastructure as a Service stop and my responsibility start?
Is E027 the same course as ITCL 3300?
Where E027 sits in WGU's programs
The July 2026 catalog places this code in 4 current WGU programs. Open a program page for the complete standard path and term positions. The live Degree Plan remains authoritative after transfer credit, substitutions, and mentor planning.
The assessments, one by one
The public catalog does not publish this course's PA/OA identity or task count. WGU Tutors publishes at most one PA manual per course and only from a WGU-controlled public rubric. Until that source exists, PA help begins from the student's real Course of Study and OA support remains preparation only.