Environment planning should consider:
Purpose (Development, Testing, UAT, Production)
Topology (Build & Test, Develop)
Tier level
Environment tiers:
Tier-1: Single-box, SQL Server, used for development
Tier-2+: Multi-box, Azure SQL, production-like architecture
The standard cloud offer includes:
Tier-1 Development environment
Tier-2 UAT environment
Production environment
First read the answer fully, then try to explain it in your own words. After that, open a few related questions and compare the concepts. This method helps you remember the topic for a longer time and improves exam preparation.