OCI Foundations Certification Q&A 2022/2023

Which of the following is not a core characteristic of cloud computing as defined by NIST standards? A. On-demand self-service access B. Upfront license payments C. Rapid elasticity D. Measured services - Answer- Answer: B A, C, D are characteristics as defined by NIST; cloud computing enables pay-as-you-pricing and does not involve paying for licenses upfront. Which statement below is NOT correct regarding a highly available system? A. Highly available systems always involve manual intervention to maintain high availability. B. Highly available systems typically have redundant hardware and software C. Highly availability systems avoid having single points-of-failure D. Highly available systems involve a failover process that moves processing performed by the failed component to the backup component - Answer- Answer: A It is possible to have some manual intervention, but typically, highly available systems do not involve manual failover processes. The more transparent the failover is, the more highly available the system is. What does compute vertical scaling imply? A. Compute scaling out is called vertical scaling B. Compute scaling in is called vertical scaling C. Compute scaling up (or down) is called vertical scaling D. In cloud, you can cannot scale compute instances - Answer- Answer: C Scale in or out is horizontal scaling. Which one of the following is not a cloud pricing model? A. Pay-as-you-go B. Commitment based pricing C. Consumption based pricing D. Enterprise license based pricing - Answer- Answer: D Enterprise license based pricing is not a cloud pricing model, while the others are. In cloud computing, you only pay for resources that you use and in some cases, pay only for how much you consume. Which statement below is NOT true regarding an Oracle Cloud Infrastructure Region? A. Each region has at least one Availability Domain. B. Availability domains are isolated from each other and very unlikely to fail simultaneously. C. Each Fault Domain has multiple Availability Domains. D. Each Availability Domain has three Fault Domains. - Answer- Answer: C Each Availability Domain has three Fault Domains and not the other way around. Which two are valid reasons to use an Oracle Cloud Infrastructure Fault Domain? A. Protect against unexpected hardware or power supply failures B. Protect against planned hardware maintenance C. To mitigate the risk of large scale events such as earthquakes D. Build replicated systems for disaster recovery E