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MS-900
exam study
| Question | Answer |
|---|---|
| Cloud Computing | Delivery of computing services (servers, storage, apps) over the internet. |
| Microsoft 365 | A cloud-based suite including Teams, OneDrive, SharePoint, Outlook, and Office apps. |
| SaaS | Software delivered over the internet via subscription. |
| IaaS | Renting virtual machines, networks, and storage in the cloud. |
| PaaS | Cloud tools for developers to build apps without managing servers. |
| Public Cloud | Cloud services shared across multiple customers (e.g., Azure). |
| Private Cloud | Cloud used by one organisation only. |
| Hybrid Cloud | A mix of on‑premises services and cloud services working together. |
| Scalability | The ability to increase or decrease resources as needed. |
| Elasticity | Automatically adjusting resources in real time. |
| High Availability | Systems designed to stay running with minimal downtime. |
| Zero CAPEX | No need to buy hardware – pay monthly for cloud services instead. |
| OPEX Model | Pay-as-you-go billing for cloud services. |
| Migration | Moving data or services from on-site hardware to the cloud. |
| Microsoft Teams | Tool for chat, calls, meetings, and team collaboration. |
| OneDrive | Personal cloud file storage for each user. |
| SharePoint Online | Tools to store, share, and manage team files and sites. |
| Exchange Online | Cloud-hosted email and calendar service. |
| Cloud Security Benefit | Microsoft handles security updates, patching, and infrastructure protection. |
| MFA | Multi-Factor Authentication – requiring two ways to verify identity. |