IT Infrastructure

Free CPA ISC (Information Systems & Controls) lesson in Information Systems and Data Management. 21 min read, ~3,092 words.

IT architecture has four layers (operating systems, servers, network infrastructure, end-user devices); each layer requires its own controls. Cloud service models split responsibility: IaaS (customer controls OS up), PaaS (customer controls applications and data), SaaS (customer controls only data and access). Cloud deployment models define infrastructure sharing: public (shared, multi-tenant)...

What this lesson covers

• Content
• Example 1
• Example 2
• Common Mistakes
• Check Your Understanding
• Exam Shortcuts

Learning objectives

• I.A1

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