Cloud Fundamentals — Vendor-Neutral Concepts, Azure & AWS

Cloud Fundamentals: Concepts, Azure & AWS

2 min readPublished 22 Jul 2026

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The cloud underpins almost every modern IT and security role — which is why these fundamentals feed straight into Microsoft Azure (AZ-900/AZ-104), AWS (Cloud Practitioner/Solutions Architect) and CompTIA Security+, as well as Cloud, Azure, AWS and Security Engineer careers. Learn the vendor-neutral concepts once here, and every vendor pathway becomes far easier.

Interactive explainer

Cloud Service Models: IaaS, PaaS & SaaS

How much of the stack you manage — and how much the provider does.

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On-premises

You manage everything.

In a traditional data centre you own and manage the whole stack — hardware, virtualisation, OS, runtime and the application. Maximum control, maximum operational burden.

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1. With IaaS, who patches the guest operating system?

2. Microsoft 365 is an example of…

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Cloud Service Models Cloud Security CompTIA Security+

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Why learn cloud fundamentals first

Azure and AWS use different names for the same ideas. If you understand the underlying concepts — service models, elasticity, the shared responsibility model, cloud networking — the vendor specifics are just vocabulary. This path builds that reusable foundation.

What this path covers

Cloud Computing Fundamentals — what the cloud really is and why it matters.
Service Models: IaaS, PaaS, SaaS — who manages what.
Deployment Models — public, private, hybrid and multi-cloud.
High Availability, Scalability & Elasticity — designing for demand and failure.
Virtualisation & Containers — VMs, containers and Kubernetes.
Networking in the Cloud — VPCs, subnets and cloud firewalls.
Cloud Identity & Access — IAM, the new perimeter.
Cloud Security — the shared responsibility model and defence in depth.
Cloud Operations — monitoring, disaster recovery and cost optimisation.

Then choose a vendor pathway

Microsoft Azure Fundamentals — map these concepts to Azure and AZ-900.
AWS Fundamentals — map these concepts to AWS and Cloud Practitioner.

Where this fits in your career

Combine this with Networking Fundamentals and CompTIA Security+, then rehearse with AI Interview™, plan with Career Coach™ and evidence it in your Career Passport™.

Start with Cloud Computing Fundamentals.

Interview Intelligence

How this topic actually shows up in interviews — and how to demonstrate you understand it.

Why employers ask about this

Cloud is assumed knowledge across modern IT and security roles.

Technical questions

Why learn vendor-neutral cloud concepts first?+

Because Azure and AWS are the same concepts with different names — the fundamentals transfer directly.

Behavioural questions

How do you keep cloud skills current?+

Hands-on free tiers, documentation and small projects — cloud evolves quickly.

Real-world scenarios

“A learner asks whether to start with Azure or AWS.”+

Expected answer: Advise fundamentals first, then a vendor pathway — the concepts are reusable across both.

Practise in AI Interview™Rehearse these questions, scored.Plan with Career Coach™A personalised path to your goal.Evidence it in Career Passport™Prove this skill to employers.

Employability Intelligence

Where this knowledge takes you — the jobs, skills and certifications it feeds into.

Relevant roles

Cloud EngineerAzure AdministratorAWS Solutions ArchitectSecurity Engineer

Skills you're proving

Cloud conceptsService & deployment modelsCloud security

Recommended certifications

CompTIA Security+

Career progression

Cloud Fundamentals → vendor pathway → Cloud/Platform Engineer → Cloud Architect.

What employers expect

That you understand cloud concepts well enough to be productive and safe on Azure or AWS from day one.

Frequently asked questions

Should I learn cloud concepts or a vendor first?

Concepts first. Azure and AWS are the same ideas with different names, so vendor-neutral fundamentals make both pathways far easier.

Does this help with certifications?

Yes — it feeds AZ-900/AZ-104, AWS Cloud Practitioner/Solutions Architect and the cloud parts of CompTIA Security+.

Which roles use cloud fundamentals?

Cloud Engineer, Azure Administrator, AWS Solutions Architect, DevOps and Security Engineer roles all rely on them.

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Missiora is an AI Employability Intelligence platform. Our resources are researched and reviewed by the Missiora team to help you measure, improve and prove your career readiness.