CCP IaaS, PaaS & SaaS Models 3 — Questions and Answers
Question 1: An organization uses AWS EC2 for compute and S3 for storage. Which cloud service model are they primarily using?
- SaaS
- PaaS
- IaaS (Correct answer)
- BaaS
Correct answer: IaaS
AWS EC2 (virtual machines) and S3 (object storage) are infrastructure services, making this a clear example of IaaS consumption.
Question 2: Salesforce CRM, Google Workspace, and Microsoft 365 are examples of which cloud service model?
- IaaS
- PaaS
- SaaS (Correct answer)
- NaaS
Correct answer: SaaS
Salesforce, Google Workspace, and Microsoft 365 are fully managed software applications delivered over the internet, classifying them as SaaS.
Question 3: Google App Engine and Heroku are examples of which cloud service model?
- IaaS
- PaaS (Correct answer)
- SaaS
- XaaS
Correct answer: PaaS
Google App Engine and Heroku are platform services that allow developers to deploy applications without managing the underlying infrastructure.
Question 4: A company's security team is concerned about multi-tenancy risks. Which aspect of cloud service models does this concern MOST relate to?
- The ability to customize applications
- Sharing physical or virtual resources among multiple customers (Correct answer)
- The cost of compute resources
- The geographic location of data centers
Correct answer: Sharing physical or virtual resources among multiple customers
Multi-tenancy means multiple customers share the same underlying physical or virtual infrastructure, which raises concerns about data isolation and security.
Question 5: In which cloud service model does the customer have the MOST control over the technology stack?
- SaaS
- PaaS
- IaaS (Correct answer)
- All models provide equal control
Correct answer: IaaS
IaaS gives customers the most control, including over the OS, middleware, runtime, and applications, while the provider only manages the physical infrastructure.
Question 6: Which cloud service model typically has the LONGEST vendor lock-in risk due to proprietary APIs and data formats?
- IaaS
- PaaS (Correct answer)
- SaaS
- All have equal lock-in risk
Correct answer: PaaS
PaaS has high vendor lock-in risk because applications are built on proprietary platform APIs and services that are difficult to migrate to another provider.
Question 7: A DevOps team wants to containerize microservices and needs a managed Kubernetes service without managing the control plane. Which model does this represent?
- IaaS
- PaaS (Correct answer)
- SaaS
- On-premises
Correct answer: PaaS
Managed Kubernetes services like GKE, AKS, or EKS abstract the control plane management, fitting the PaaS model where the platform is managed by the provider.
CCP IaaS, PaaS & SaaS Models 3
An organization uses AWS EC2 for compute and S3 for storage.
Which cloud service model are they primarily using?