D318 Cloud Applications is the Western Governors University course on designing, securing, deploying, running and troubleshooting cloud services without being tied to one provider.
WGU's program guides for the B.S. Cloud Computing tracks list it at three competency units and state that it prepares learners for the CompTIA Cloud+ certification exam. Later cloud courses, such as AWS Cloud Architecture and Cloud Platform Solutions, build on it.
The difficulty is that questions are scenario-based. You need to choose a design, a security control or a troubleshooting step that fits stated requirements, often with more than one plausible answer.
Course at a Glance
| Item | Details |
|---|---|
| University | Western Governors University (WGU) |
| Course code | D318 |
| Level | Undergraduate |
| Competency units | 3 |
| Certification alignment | CompTIA Cloud+ |
| Focus | Vendor-neutral cloud skills |
What D318 Covers
| Competency (summarized) | Typical topics |
|---|---|
| Design cloud infrastructure and services | Service and deployment models, capacity planning, high availability |
| Recommend security solutions, policies and procedures | Identity and access, encryption, compliance, hardening |
| Deploy storage, networking and security solutions | Storage tiers, virtual networks, migrations |
| Manage cloud operations | Monitoring, patching, automation, backup and recovery, optimization |
| Troubleshoot networking, security and performance | Structured troubleshooting of cloud-specific faults |
Key Concepts Explained
Recovery Objectives
Recovery point objective (RPO) is how much data loss is acceptable, measured in time; recovery time objective (RTO) is how long a service can be down. Together they drive backup frequency and the type of disaster recovery site.
Example: An online shop can tolerate losing at most 15 minutes of orders and being down for no more than one hour. Nightly backups would breach the RPO, so the design needs continuous replication or frequent snapshots, plus a warm standby that can take over within the hour.
Scaling up Versus Scaling Out
Vertical scaling adds resources to one instance; horizontal scaling adds more instances behind a load balancer. Horizontal scaling usually offers better resilience and suits variable demand with autoscaling.
Troubleshooting in the Cloud
Cloud faults often come from configuration: security group rules, routing tables, expired certificates, exhausted quotas or misapplied permissions. Checking recent changes first saves time.
How the Course Is Assessed
WGU states that the course prepares learners for CompTIA Cloud+. Check your course page for how competency is assessed in your program version, and use CompTIA's current Cloud+ objectives to track coverage.
| Preparation activity | What it builds | How to use it |
|---|---|---|
| Scenario practice | Requirement-based choices | Underline every requirement before picking an answer |
| Hands-on labs | Real configuration sense | Use a free tier to build a small network and VM |
| Comparison tables | Distinguishing options | Storage types, DR site types, scaling approaches |
| Practice questions | Exam readiness | Review explanations for both right and wrong answers |
Service and Deployment Models
Design questions start with choosing the right model. Keep both dimensions clear:
| Model | What it means | Typical fit |
|---|---|---|
| IaaS | You manage the OS and up | Moving existing servers as they are |
| PaaS | Provider manages the platform | Developers deploying applications |
| SaaS | Provider manages the whole application | Email, office and CRM tools |
| Public, private, hybrid | Who owns and shares the infrastructure | Hybrid when some data must stay on premises |
The model chosen shapes everything else in the design: who patches what, which security controls you own and how costs behave. State that link explicitly when you justify a design.
Where Students Get Stuck
- Two right-looking answers. The best answer meets every stated requirement, including cost and time.
- DR terminology. Hot, warm and cold sites, RPO and RTO need clear definitions.
- Networking in the cloud. Subnets, routing and security groups behave differently from on-premises networks.
- Vendor-specific study. Cloud+ is vendor-neutral, so focus on concepts rather than one provider's product names.
Study Tips for D318
- Build one small, real deployment and break it on purpose to practice troubleshooting.
- Write requirement-to-design tables for practice scenarios.
- Review your networking and security notes from earlier courses first.
- Track weak objective areas and revisit them weekly.
How We Help with D318
Tell us which topics or scenarios are difficult. A tutor with cloud experience can explain design, security and operations concepts, prepare comparison notes and talk through practice scenarios.
GradeEssays is independent of Western Governors University and CompTIA. We provide tutoring and study materials only; we never sit exams, share exam content or log in to your accounts, and we cannot promise a pass. Revisions within the scope of your original request are free.
Understand Cloud Operations End to End
Share your weak areas, scenarios or practice results. A cloud tutor explains the concepts so you can prepare yourself.
Start My D318 TutoringFree revisions · Full refund if late · Written from scratch for your order
Frequently Asked Questions
WGU's program guides say Cloud Applications prepares learners for the CompTIA Cloud+ certification exam.
The cloud computing program guides list it at three competency units.
Neither specifically. Cloud+ is vendor-neutral; provider-specific courses come later in the cloud tracks.
RPO is the maximum acceptable data loss measured in time; RTO is the maximum acceptable downtime.
In the cloud tracks, courses such as AWS Cloud Architecture and Cloud Platform Solutions list Cloud Applications among their prerequisites.
No. We provide tutoring and study notes only; exams must be taken by you.