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 se rvices - ✔✔Answer: B A,
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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 se rvices - ✔✔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: 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: C Scale in or out is horizontal scaling. Which one of the following is not a cloud pricing model? A. Pay-as-you-goB. Commitment based pricing C. Consumption based pricing D. Enterprise license based pricing - ✔✔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: 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. To meet requirements for legal jurisdictions - ✔✔Answer: A, B You can use fault domains to (1) protect against unexpected hardware failures or power supply failures (2) protect against planned outages because of compute hardware maintenance. Which statement below is NOT true regarding Oracle Cloud Infrastructure High Availability Architecture? A. Fault Domains provide protection against failures within an Availability Domain B. In a multi-AD region, Availability Domain provides protection from an entire Availability Domain failure C. OCI region pair enables disaster recovery while meeting compliance and data residency requirements D. Compartments enable a high availability design within an Availability Domain - ✔✔Answer: D A compartment is a collection of related resources and provides logical not physical isolation.Which two are valid reasons to deploy your apps in multiple Oracle Cloud Infrastructure regions? A. To mitigate the risk of region-wide events such as large weather systems or earthquakes B. To achieve high availability and real time data synchronization C. To meet varying requirements for legal jurisdictions, tax domains, and other business or social criteria D. To lower costs, as some OCI regions have lower pricing than others - ✔✔Answer: A, C In OCI, pricing is not region-specific. In addition, if you deploy apps to multiple regions, you cannot achieve real-time data synchronization as regions can be separated by vast distances—across countries or even continents You have two web servers and a clustered database running in a single OCI Availability Domain. Which step below can help you achieve high availability? A. Group one web server and one database node in one fault domain and the other half of each pair in another fault domain B. OCI provides high availability by default, so you don't need to do anything C. Put both web servers in the same fault domain and database nodes in another fault domain D. Put both database nodes in the same fault domain and web servers in another fault domain - ✔✔Answer: A Grouping web server and a database node and placing a pair in two separate fault domains ensure that a failure of any one fault domain does not result in an outage for your application. How do instances in Private Subnets in OCI Virtual Cloud Network communicate to Internet? A. Through a Service Gateway B. Through a Dynamic Routing Gateway C. Through a NAT Gateway D. Through an Internet gateway - ✔✔Answer: C NAT is a networking technique commonly used to give an entire private network access to the internet without assigning each host a public IP address. OCI provides a managed NAT Gateway service that gives cloud resources without public IP addresses access to the internet without exposing those resources to incoming internet connections. Which of the following statement is true about VCN peering?A. A VCN peering connection is a networking connection between two VCNs within a single region. B. A VCN peering connection is a VPN-based connection. C. VCN peering does not require using any Gateways, Local or Remote D. Peered VCNs can exist in different regions. - ✔✔Answer: D Remote Peering connects VCNs across regions You are setting up a proof of concept (POC) and need to cost-effectively establish a secure connection between an on-premises data center and Oracle Cloud Infrastructure (OCI). Which OCI service would you use? A. VPN Connect B. Service Gateway C. Internet Gateway D. FastConnect - ✔✔Answer: A VPN Connect provides a site-to-site IPSec VPN between your on-premises network and your virtual cloud network (VCN). It can be used for a proof of concept setup: VPN Connect is a free service with no port hour charges. Data transfer cost is covered under networking cloud pricing. You are building out a site-to-site VPN connection from an on-site network to a private subnet within a Virtual Cloud Network. Which of the following might you need for this connection to function properly? A. NAT Gateway B. Service Gateway C. Internet Gateway D. Dynamic Routing Gateway E. VPN Gateway - ✔✔Answer: D DRG is a virtual router that provides a path for private traffic (that is, traffic that uses private IPv4 addresses) between your VCN and an on-premises network. If you choose to use both Security Lists and Network Security Groups in an OCI VCN, at what two levels is security functioning? (choose TWO) A. VPN LevelB. VCN Level C. Subnet Level D. Instance Level E. Gateways Level - ✔✔Answer: C, D NSG rules apply to an instance (vNIC) while Security Lists applies at the subnet level (and all instances in that particular subnet). If you choose to use both, a packet is allowed if any rule in any of the relevant Security Lists and Network Security Groups allows the traffic Which of the following is NOT true about Oracle Cloud Infrastructure Object Storage service? A. Maximum object size that can be stored in OCI Object Storage buckets is 10 TB. B. Standard Object storage buckets cannot be downgraded to Archive storage. C. Archive Storage buckets cannot be upgraded to Standard Object storage. D. Object Storage is eventually consistent. - ✔✔Answer: D OCI Object Storage supports strong consistency that means that when a read request is made, Object Storage always serves the most recent copy of the data that was written to the system. You have a requirement to store application backups in OCI for 6-12 months, but retrieve data immediately based on business needs. Which OCI storage service can be used to meet this requirement? A. Object Storage (standard) B. Block Volume C. Archive Storage D. File Storage - ✔✔Answer: A You can use Object Storage for data to which you need fast, immediate, and frequent access. You can use Archive Storage for data to which you seldom or rarely access, but that must be retained and preserved for long periods
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