AZ-900 Core Cloud Computing Concepts 2 — Questions and Answers
Question 1: Which cloud deployment model combines on-premises infrastructure with public cloud resources?
- Public cloud
- Private cloud
- Hybrid cloud (Correct answer)
- Community cloud
Correct answer: Hybrid cloud
Hybrid cloud connects on-premises (private) infrastructure with public cloud resources.
Question 2: What is the main financial benefit of the consumption-based cloud model?
- You pay a fixed monthly fee regardless of use
- You only pay for the resources you actually consume (Correct answer)
- You pay upfront for hardware you own
- You pay nothing until the project ends
Correct answer: You only pay for the resources you actually consume
Consumption-based pricing means you pay only for the resources you use.
Question 3: Which cloud benefit allows resources to automatically increase or decrease based on demand?
- Elasticity (Correct answer)
- Latency
- Redundancy
- Localization
Correct answer: Elasticity
Elasticity lets resources scale up or down automatically to match demand.
Question 4: In the shared responsibility model for IaaS, who is responsible for patching the guest operating system?
- Microsoft only
- The customer (Correct answer)
- A third-party vendor
- No one is responsible
Correct answer: The customer
For IaaS, the customer manages and patches the guest operating system.
Question 5: What does CapEx (capital expenditure) refer to in a cloud context?
- Ongoing pay-as-you-go costs
- Upfront spending on physical infrastructure (Correct answer)
- Free trial credits
- Refunds for unused services
Correct answer: Upfront spending on physical infrastructure
CapEx is upfront capital spending on physical assets like servers and datacenters.
Question 6: Which characteristic of cloud computing ensures applications remain available even if a single datacenter fails?
- Agility
- High availability (Correct answer)
- Manageability
- Mobility
Correct answer: High availability
High availability keeps applications running despite individual component or datacenter failures.
Question 7: Which cloud service model gives the customer the LEAST management responsibility?
- IaaS
- PaaS
- SaaS (Correct answer)
- On-premises
Correct answer: SaaS
SaaS shifts the most responsibility to the provider, leaving the customer the least to manage.
AZ-900 Core Cloud Computing Concepts 2
Which cloud deployment model combines on-premises infrastructure with public cloud resources?