Autoscaling. Deploy the database in a private subnet with no direct internet access. Use a Load Balancer to distribute incoming traffic to the application servers. B. Use a single subnet for both the application servers and the database. Enable OCI Autoscaling for both and control access using Security List rules. Use a Virtual Cloud Network (VCN) peering connection for internet access. C. Deploy all components, including the database, in a public subnet to ensure high availability and attach an Internet Gateway for external access. Enable OCI Autoscaling for the application servers and use a firewall to restrict access to the database. D. Deploy the application servers in a private subnet and the database in a public subnet. Use a NAT Gateway for the application servers to access the Internet and enable OCI Autoscaling for the database to manage the load. Explanation: Deploy the application servers in a public subnet with an Internet Gateway and enable OCI Autoscaling. Deploy the database in a private subnet with no direct internet access. Use a Load Balancer to distribute incoming traffic to the application servers. -> Correct. This design ensures that the application servers are scalable and accessible from the Internet, while the database is secured in a private subnet, aligning with best practices for security and scalability. Deploy all components, including the database, in a public subnet to ensure high availability and attach an Internet Gateway for external access. Enable OCI Autoscaling for the application servers and use a firewall to restrict access to the database. -> Incorrect. Placing the database in a public subnet exposes it to unnecessary risk, violating best practices for security. Deploy the application servers in a private subnet and the database in a public subnet. Use a NAT Gateway for the application servers to access the Internet and enable OCI Autoscaling for the database to manage the load. -> Incorrect. Deploying application servers in a private subnet and the database in a public subnet is the opposite of best practice, as it exposes sensitive data to the public Internet and may limit the application servers' accessibility. Use a single subnet for both the application servers and the database. Enable OCI Autoscaling for both and control access using Security List rules. Use a Virtual Cloud Network (VCN) peering connection for internet access. -> Incorrect. Mixing application servers and databases in the same subnet with public internet access compromises security. Additionally, autoscaling the database is not typically advised without considering replication or clustering strategies. A software development company is planning to migrate its source code repository and continuous integration/continuous deployment (CI/CD) pipelines to Oracle Cloud Infrastructure (OCI) to improve development efficiency and deployment speed. They have provided details about their current CI/CD toolchain, average build and deployment times, and the volume of daily code changes. Which two pieces of additional information are necessary for you to recommend the most effective migration strategy?
CI/CD tools is crucial to ensure compatibility with OCI services or to plan for necessary tool upgrades or replacements during migration. The size and structure of the source code repositories. -> Correct. Understanding the repository size and structure is important for planning the migration to ensure minimal disruption to development workflows and to choose the most suitable OCI storage services. The number of developers working concurrently during peak hours. -> Incorrect. While useful for scaling and performance tuning of the CI/CD environment in OCI, this does not directly influence the choice of migration strategy. Details of the testing frameworks and environments used in the current setup. -> Incorrect. Critical for maintaining or improving quality assurance processes post -migration but less relevant to the initial migration strategy decision. Frequency of external service integrations triggered by the CI/CD pipelines. -> Incorrect. Important for operational continuity and automation efficiency but secondary to the fundamental considerations of tool compatibility and code migration. A developer is deploying a new application on Oracle Cloud Infrastructure (OCI) using the OCI Object Storage service for storing application data. She notices that her application is unable to read from or write to the specified bucket. The application returns an error indicating that it does not have the necessary permissions to access the bucket. Which option is not a plausible reason for this error?
A multinational corporation plans to deploy a new global e -commerce platform on Oracle Cloud Infrastructure (OCI) to support its expanding business. The architecture must support N-tier applications, microservices, and serverless architectures to ensure scalability, high availability, and low latency for users worldwide. The company requires a resilient deployment that minimizes downtime and maintains data consistency across different regions. Considering these requirements, which of the following solutions would best fulfill their needs?
information are crucial to choose the most appropriate migration approach?
Deploy the entire application on a single OCI Compute instance to simplify management. -> Incorrect. This approach does not leverage the scalability and high availability features of OCI, potentially leading to performance bottlenecks and a single point of failure. Implement the application using OCI Functions for stateless components and OCI Block Volume for data persistence of stateful components. -> Incorrect. While OCI Functions is a good choice for stateless components, using OCI Block Volume for stateful components may not provide the required scalability and data sharing capabilities across instances. Employ dedicated physical servers through OCI Dedicated Compute Hosts for both components to ensure maximum performance and isolation. -> Incorrect. While Dedicated Compute Hosts provide isolation and performance, they do not inherently offer scalability or high availability, and may not be cost-effective for this scenario. You are an OCI Architect designing a disaster recovery strategy for a financial services company. To ensure high availability and fault tolerance, you plan to deploy their critical applications across multiple availability domains within a region. You decide to use Oracle Cloud Infrastructure's Object Storage to store backups of critical data. Which of the following statements is not valid regarding using OCI Object Storage for disaster recovery purposes?
Your organization has deployed a critical web application on Oracle Cloud Infrastructure (OCI) that utilizes a microservices architecture spread across multiple Availability Domains (ADs) within a single region for high availability. Recently, users have reported sporadic latency and timeout issues when accessing the application. Preliminary investigations suggest these issues might be related to the internal networking setup of the microservices. As an OCI Architect, you are tasked with diagnosing and resolving these networking issues. Which of the following actions would most effectively identify and solve the reported issues?
