Azure AZ-900 Fundamentals
Microsoft Azure cloud essentials
6
Modules
150
Practice Questions
4
Field Missions
AZ-900
Microsoft
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Exam Details
Free Preview — Module 1
Module 1 — What is Cloud Computing?
Cloud computing is the foundation every Azure concept builds on. Understand what cloud is, why it exists, how Azure is structured globally, and the financial shift it enables.
Cloud Computing Fundamentals
On-demand delivery of compute, storage, networking, and databases over the internet — the five essential characteristics of cloud.
Azure Global Infrastructure
Regions, Availability Zones, and data centers — how Azure distributes resources globally to provide high availability and fault tolerance.
Business Motivations for Cloud Adoption
Cost optimization, operational efficiency, global reach, performance — why organizations choose cloud over on-premises infrastructure.
Cloud Economics and Pay-As-You-Go
From capital expenditure (CapEx) to operational expenditure (OpEx) — how consumption-based billing transforms IT financial planning.
Sample Practice Questions
Question 1
Which characteristic of cloud computing allows resources to automatically scale up or down based on demand?
Rapid elasticity enables automatic scaling. Broad network access refers to accessibility from anywhere; resource pooling refers to shared multi-tenant infrastructure; measured service refers to consumption-based billing.
Question 2
What is the primary financial benefit of cloud computing compared to traditional on-premises infrastructure?
Cloud computing uses consumption-based billing — you pay only for what you use. This eliminates large upfront hardware purchases (CapEx) and replaces them with predictable operating expenses.
Question 3
Which Azure component represents a geographic area that contains multiple data centers?
An Azure Region is a geographic area (e.g., East US) containing one or more data centers. Availability Zones are physically separate data centers within a region; Resource Groups and Subscriptions are management/billing constructs.
Full course includes 6 modules, 150 practice questions, and 4 field missions.
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