FUNDAMENTALS EXAM REF AZ-900
PASSED EXAM QUESTIONS AND
ANSWERS 2026 COMPLETE EXAM
PREP WITH VERIFIED SOLUTIONS
◉ Shared Responsibility Model.
Answer: Customer: responsible for security "in" the cloud
AWS: responsible for security "of" the cloud
◉ Private cloud model.
Answer: Your own virtualized local data center usually one org/single
org. IT team greater control. More control over resources and security.
◉ Public cloud model.
Answer: an IT model where public cloud service providers make
computing services—including compute and storage, develop-and-
deploy environments, and applications—available on-demand to
organizations and individuals over the public internet. **Pay for what is
used.
◉ Hybrid Cloud model.
Answer: combines both private and public cloud infrastructures, most
flexible
, ◉ Consumption-based model.
Answer: Users only pay for the resources they use. Opposite: fixed price
model.
◉ OPEX.
Answer: Operational Expenditure- spending of services over time (what
is used)
◉ CAPEX.
Answer: Capital Expenditures, how much the firm spends on fixed
assets/physical infrastructure ON premise
◉ availability.
Answer: Time frames when the system is operational
◉ uptime.
Answer: Measure of how long a computer system has been operating
without restarting.
◉ Types of scales.
Answer: Vertical- processing power CPU/Ram
Horizontal: add resources
◉ Reliable System.