Study Virtualization and Cloud Computing for A+ Core 1 (220-1201)

This is the smallest Core 1 domain, but it still matters because CompTIA wants entry-level technicians to understand what a virtual machine is, what a cloud service model means, and where thin clients or VDI fit in support conversations.

VDI: Virtual desktop infrastructure, where a desktop runs centrally and is presented remotely to the user.

Current weight in the objectives

CompTIA currently weights this domain at 11% of Core 1.

Work this domain in order

What strong answers usually do

• keep this domain at the support level instead of overengineering it
• know the difference between a hosted app, a hosted desktop, and a hosted server
• remember that snapshots help temporarily but do not replace real backups

If two answers both sound right in this chapter

Use these tie-breakers:

• ask who manages more of the stack
• keep a hosted desktop different from a hosted application
• treat snapshots as convenience checkpoints, not durable recovery strategy

Late-stage review bias

Review both lessons once the heavier hardware and troubleshooting blocks are stable.

In this section

• Study Virtualization, Hypervisors and Client-Side Labs for A+ Core 1 (220-1201)
  Understand Type 1 and Type 2 hypervisors, virtual machine basics, and the support-side use of client virtualization on A+ Core 1.
• Study Cloud Models, Thin Clients and VDI Basics for A+ Core 1 (220-1201)
  Sort IaaS, PaaS, SaaS, public and private cloud, thin clients, and VDI at the support depth A+ Core 1 expects.