introduction to cloud computing coursera week 2 quiz answers

Practice Quiz: Service Models

1. In the car analogy used in the video to explain and differentiate between the three service models, which of the provided options is an analogy for PaaS?

  • Rentinga car
  • Leasing a car
  • Buying a car
  • Hiring a taxi

2. Which is a characteristic of cloud infrastructure as a service model?

  • No supporting services provided by laaS
  • End users interact directly with the physical infrastructure
  • Users can access networking resources on the cloud through virtualization
  • Data can only be stored on physical machines in the network

3. Which of these scenarios are good use cases for PaaS?

  • Organizations who want to maintain full control over the installation, configuration, and operation of their application infrastructure
  • IoT deployment
  • Organizations who want to manage the lower-level details of the application environment
  • Organizations who want the maintenance of their applications to be done by the service provider

4. Which one of the following is a good use case for SaaS?

  • Organizations looking to reduce on-premises IT infrastructure and capital expenditure
  • Business-critical applications
  • Organizations that have a geographically spread workforce, some of them working in areas with erratic or unreliable internet connections
  • Applications that have highly confidential and sensitive data

Practice Quiz: Deployment Models

5. Which of these scenarios are good use cases for Public Cloud? Select two.

  • Reducing time-to-market for products and services
  • Managing business critical platforms and applications
  • Applications with stable capacity and resourcing needs
  • Disaster recovery, data protection, and business continuity

6. What do we mean when we say that the Hybrid Cloud is interoperable?

  • When there is a spike in demand, a workload running on the private cloud can leverage the additional public cloud capacity
  • The public and private cloud services can understand each other’s APIs, configuration, data formats, and forms of authentication and authorization
  • Organizations can choose to run their sensitive workloads on a private cloud
  • You are no longer locked-in with a specific vendor

7. What is the benefit of using private cloud?

  • Common access to all with minimum security
  • Ability to better utilize external resources outside organization
  • Ability to provision limited resources saving costs
  • Leverage usage of systems directly controlled by organization

Module 2 Graded Quiz: Cloud Computing Models

8. In which cloud service model does the service provider manage the application data along with the infrastructure and platform resources?

  • SaaS
  • PaaS
  • CaaS
  • IaaS

9. In which laas cloud environment can the customers deploy their middleware and install applications?

  • IoT
  • Blockchain
  • Virtual Machines
  • AI

10. What is one of the concerns in cloud infrastructure configuration and management?

  • Solving complex problems involving millions of variables and calculations
  • Scaling infrastructure up and down as demand fluctuates
  • Business continuity and disaster recovery
  • Dependency on a third party for workload availability and performance

11. What is the responsibility of a user in the PaaS model?

  • Business process management systems
  • Application code and its maintenance
  • Workload management
  • Database management systems

12. Which capability in the PaaS model eliminates the need for the integration of disparate components?

  • Runtime environment
  • Rapid deployment mechanisms
  • APIs for services
  • Business analytics services

13. Which is a characteristic of the SaaS model?

  • Users can see only their own application
  • Infrastructure and code are maintained by the users
  • Applications reside on a remote cloud network
  • Services are free for the users on the SaaS cloud

14. What s the users’ role in a public cloud?

  • Users own the storage their data consumes
  • Users maintain the platform that runs their application
  • Users can manage the operations of the servers
  • Users don’t own the servers their applications run on

15. What is a feature of a private cloud?

  • Application portability
  • Uncontrolled access
  • Use of external computing resources
  • Limited security

16. If an organization needs to run a highly sensitive and mission-critical application with unpredictable performance and capacity requirements, which of the following models would best meet its requirements?

  • On-premise Data Centers
  • Hybrid Cloud
  • Private Cloud
  • Public Cloud

17. What do you mean by “cloud bursting”?

  • You can spin-up environments using pay-as-you-go in the public cloud
  • You can incrementally modernize your core business systems.
  • You can leverage public cloud instances for a period of time but return to the private cloud when the surge is met
  • You can move applications and data between on-premises and cloud systems.

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