Incorrect. Simply increasing compute capacity is a reactive and costly approach that does not address the root cause of DDoS attacks or prevent them. Rely on OCI's default network security settings, assuming they automatically protect against DDoS attacks. -> Incorrect. Default network settings provide a basic level of security but are not sufficient to protect against sophisticated DDoS attacks without additional specific configurations or services like WAF. You are configuring a cloud solution for a data analytics application on Oracle Cloud Infrastructure (OCI) that processes large datasets. The application requires high throughput between compute instances and a shared file system. Additionally, the solution must provide low -latency access to the file system from the compute instances, which are deployed in multiple availability domains within the same region. How should you design the storage architecture to meet these performance requirements?
Implementing a highly available online transaction processing (OLTP) system. -> Incorrect. ATP is well- suited for OLTP systems, providing high availability and disaster recovery features that ensure operational continuity and data integrity. Supporting a complex data warehousing application with real -time data analytics capabilities. -> Incorrect. ATP supports data warehousing applications with advanced analytics features, allowing real- time insights into data with automatic scaling to meet query demands. A healthcare organization, specializing in medical research, is planning to migrate its large datasets and analytical workloads from an on -premises environment to Oracle Cloud Infrastructure (OCI) to leverage advanced analytics and AI capabilities. Their current environment includes Hadoop clusters for big data processing and a variety of custom applications for data analysis, all requiring strict compliance with health data regulations and zero downtime during migration. What is the most effective strategy for migrating their big data environment to OCI, ensuring compliance, and setting up continuous data processing capabilities?
system would not be ideal for applications requiring high throughput and low latency due to potential network latencies and the complexities of managing on -premises infrastructure. Your company plans to migrate a critical application to Oracle Cloud Infrastructure (OCI) to leverage OCI's high availability and disaster recovery capabilities. The application generates 50 TB of data, which needs to be moved to OCI within a 48-hour window to minimize downtime. Post-migration, it is essential to have a maximum data retrieval time of 15 minutes to meet the Recovery Time Objective (RTO) for your application. Which is the most cost -effective and time -efficient method to accomplish this data transfer and meet the RTO requirement?
application tier. B. Create a Virtual Cloud Network (VCN) with no internet gateway and place the database tier in this VCN. C. Implement Network Security Groups (NSGs) to define rules that allow traffic only from the application tier's specific IP addresses to the database tier. D. Use OCI Identity and Access Management (IAM) policies to restrict database access to the application tier's OCI Identity. Explanation: Implement Network Security Groups (NSGs) to define rules that allow traffic only from the application tier's specific IP addresses to the database tier. -> Correct. NSGs allow for fine -grained control over traffic between OCI resources based on their specific characteristics, such as IP addresses, making this the correct option to restrict access to the database tier exclusively to the application tier. Configure a public subnet for the database tier and use route tables to direct traffic only from the application tier. -> Incorrect. Placing the database tier in a public subnet exposes it to unnecessary risk, even if route tables are used to restrict traffic, as it does not inherently block access from unauthorized sources. Use OCI Identity and Access Management (IAM) policies to restrict database access to the application tier's OCI Identity. -> Incorrect. While IAM policies control who can manage resources in OCI, they do not govern network -level access between resources, such as the required restriction from the application tier to the database tier. Create a Virtual Cloud Network (VCN) with no internet gateway and place the database tier in this VCN. -> Incorrect. While placing the database in a VCN without an internet gateway prevents internet access, this method alone does not specifically restrict access to just the application tier, as required. In a multi -regional deployment, an IT company aims to design a highly available and disaster recovery - capable architecture for its critical application on Oracle Cloud Infrastructure (OCI). The application requires low latency access to its database for users in both regions and must ensure data consistency with minimal downtime. Which two of the following solutions should the architect incorporate into the design to meet these requirements?
Implement cross -region VCN peering to connect the VCNs in both regions. -> Incorrect. While cross - region VCN peering connects VCNs in different regions, it primarily facilitates network connectivity and does not address database availability or data consistency requirements. Deploy the application on Oracle Kubernetes Engine (OKE) in both regions with a multi -master configuration. -> Incorrect. Deploying on OKE with a multi -master setup enhances application availability but does not directly solve database data consistency or disaster recovery capabilities. Implement Oracle Real Application Clusters (RAC) within a single region for database scalability and availability. -> Incorrect. Oracle RAC provides high availability within a single region by allowing multiple instances to access a single database, but it does not address cross -region disaster recovery needs. You need to deploy a web application that can automatically scale based on traffic demand in Oracle Cloud Infrastructure (OCI). The application must scale out during peak hours and scale in during off - peak hours, ensuring cost efficiency while maintaining performance. Which is the most cost-effective and efficient option to meet these requirements in OCI?
intervals. C. Implement OCI Functions to trigger data copy operations based on a scheduled time. D. Configure a Virtual Cloud Network (VCN) peering between regions to facilitate data replication. Explanation: Use cross -region replication to automatically replicate data across regions. -> Correct. Cross -region replication is a native feature of OCI Object Storage that automatically and asynchronously replicates data across regions, ensuring high availability and disaster recovery without the need for custom solutions. Deploy a custom application on compute instances in each region to manually copy data at regular intervals. -> Incorrect. While feasible, this method is more complex and error -prone compared to using built-in OCI features designed for this purpose. Implement OCI Functions to trigger data copy operations based on a scheduled time. -> Incorrect. OCI Functions can automate tasks, but for data replication across regions, OCI's native cross -region replication is more efficient and less complex. Configure a Virtual Cloud Network (VCN) peering between regions to facilitate data replication. -> Incorrect. VCN peering allows for network connectivity between regions but does not directly facilitate or automate data replication. Your organization is planning to leverage Oracle Cloud Infrastructure (OCI) for hosting a new, critical web application that demands high scalability and performance. To meet these requirements, you are considering various OCI services and features for the deployment strategy. Which of the following options is not an appropriate use of OCI services for optimizing the scalability and performance of the web application?
