Oracle Cloud Infrastructure 2024 Architect Professional Free Practice Test — 30 Questions

Question 1

A retail company is planning to launch a new e-commerce platform on Oracle Cloud Infrastructure. They anticipate a high volume of transactions and need to store user profiles, product catalogs, and shopping cart data. The development team is considering using the NoSQL Database Service due to its scalability and flexibility. However, they are also concerned about the potential trade-offs in data consistency. Given this scenario, which statement best describes the advantages of using the NoSQL Database Service for their application?

Accepted Answer

The NoSQL Database Service allows for flexible data models and can handle high write and read throughput, making it ideal for rapidly changing data like user profiles and shopping carts.

Question 2

A company has deployed a web application on Oracle Cloud Infrastructure and configured a load balancer with multiple backend servers. They notice that users are experiencing intermittent connectivity issues. Upon investigation, they find that one of the backend servers is occasionally unresponsive. What should the architect do to ensure that the load balancer effectively manages the backend servers and minimizes user impact?

Accepted Answer

Review and adjust the health check configuration to ensure it accurately detects the unresponsive backend server.

Question 3

A financial services company is developing a new application that processes transactions in real-time and requires high availability and scalability. They are considering using Oracle Functions to handle various transaction events. What is the primary advantage of using Oracle Functions in this scenario?

Accepted Answer

It allows for automatic scaling based on the number of incoming transaction events, ensuring high availability without manual intervention.

Question 4

A financial services company is planning to migrate its transaction processing system to Oracle Cloud Infrastructure. They anticipate varying transaction loads throughout the day, with peak activity during business hours. Which feature of Autonomous Transaction Processing would most effectively address their need for dynamic resource management and performance optimization?

Accepted Answer

The ability to automatically scale resources based on real-time workload demands

Question 5

A company is using Oracle Functions to run a serverless application that is invoked 1000 times, with each invocation consuming 0.5 GB of memory for 120 seconds. If the cost per invocation is $0.000001$ and the cost per GB-second of memory is $0.00001667$, what is the total cost incurred for these executions?

Accepted Answer

$0.0011 \, 	ext{USD}$

Question 6

A company is planning to migrate its applications to Oracle Cloud Infrastructure and wants to implement a robust budgeting and cost tracking strategy. They aim to set up a budget that will help them monitor their spending effectively while also allowing for flexibility in resource allocation. Which approach should they take to ensure they can track costs accurately and make necessary adjustments in real-time?

Accepted Answer

Establish a budget at the compartment level and utilize OCI's cost analysis tools to monitor spending against this budget, allowing for adjustments based on usage patterns.

Question 7

A company is planning to migrate its data to Oracle Cloud Infrastructure and is evaluating the use of Object Storage for its unstructured data. They have a mix of frequently accessed and rarely accessed data and are concerned about managing costs while ensuring data availability. Which approach would best optimize their storage strategy in OCI?

Accepted Answer

Implement a lifecycle management policy to automatically transition data between standard and archive storage based on access frequency.

Question 8

A financial services company is migrating its customer transaction data to Oracle Cloud Infrastructure. They need to choose between a relational database and a NoSQL database for storing this data. The team is concerned about the flexibility of the data model and the performance of query operations. Which approach should they take to best meet their requirements?

Accepted Answer

Utilize a NoSQL database to allow for flexible data structures and rapid scaling, accommodating varying transaction types and volumes.

Question 9

A company is deploying a new API service on Oracle Cloud Infrastructure that will be accessed by various third-party applications. To ensure the service remains available and secure, the architect is considering implementing rate limiting. Which approach would best balance security and user experience while preventing abuse of the API?

Accepted Answer

Implement a tiered rate limiting strategy that allows different levels of access based on user authentication and usage patterns.

Question 10

A financial services company is planning to migrate its transaction processing system to Oracle Autonomous Database. They expect high variability in transaction volumes throughout the day, with peak loads during business hours and minimal activity during off-hours. Given this scenario, which deployment option would best suit their needs?

Accepted Answer

Autonomous Transaction Processing (ATP) with auto-scaling enabled

Question 11

A retail company is looking to enhance its customer experience by implementing a recommendation system that suggests products based on user behavior and preferences. They are considering using Oracle Cloud Infrastructure\'s AI and Machine Learning services. Which approach would best leverage OCI\'s capabilities to achieve this goal while ensuring scalability and integration with their existing data sources?

Accepted Answer

Utilize Oracle Cloud Infrastructure Data Science to build a custom recommendation model using historical purchase data and user interactions, then deploy it as a REST API for real-time recommendations.

Question 12

A media company is planning to store a vast library of video files in Oracle Cloud Infrastructure Object Storage. The videos will be accessed frequently during the first few months after upload, but access will significantly decrease after that period. To optimize costs while ensuring that the videos remain accessible when needed, which strategy should the architect implement?

Accepted Answer

Utilize Object Storage lifecycle management policies to transition videos to a lower-cost storage tier after the initial access period.

Question 13

A company is experiencing fluctuating traffic to its web application, which is hosted on Oracle Cloud Infrastructure. They have set up an instance pool with autoscaling configured to adjust the number of instances based on CPU utilization. However, they notice that during peak hours, the application becomes unresponsive, and during low traffic periods, they are still incurring high costs. What could be the most effective adjustment to their autoscaling policy to address these issues?

Accepted Answer

Implement a more aggressive scaling policy that increases the instance count at a lower CPU utilization threshold and decreases it at a higher threshold.

Question 14

In a scenario where a company is implementing an API Gateway to manage access to its microservices, which configuration aspect is most critical to ensure that only authorized users can access the APIs while maintaining performance and scalability?

Accepted Answer

Implementing OAuth 2.0 for authentication and authorization of API requests

Question 15

A cloud architect is tasked with ensuring that a critical application hosted on Oracle Cloud Infrastructure maintains optimal performance during peak usage times. The architect decides to implement metrics and alarms to monitor the application\'s resource utilization. Which approach would best enable the architect to proactively manage the application\'s performance and respond to potential issues?

Accepted Answer

Configure alarms to trigger notifications when CPU utilization exceeds 80% and set up automated scaling to add more instances if the alarm is triggered.

Question 16

A company is planning to migrate its existing microservices architecture to Oracle Cloud Infrastructure and is considering using Container Instances for deployment. They want to ensure that their applications can scale automatically based on demand while maintaining high availability and security. Which approach should the architect recommend to best leverage Container Instances in this scenario?

Accepted Answer

Implement an autoscaling policy that adjusts the number of container instances based on CPU utilization metrics.

Question 17

A company is migrating its applications to Oracle Cloud Infrastructure and is concerned about securing access to its resources. The security team is tasked with implementing Identity and Access Management (IAM) policies. Which approach should they prioritize to ensure the most effective security posture?

Accepted Answer

Implement IAM policies that adhere to the principle of least privilege, granting users only the permissions necessary for their roles.

Question 18

A cloud architect is tasked with designing a Virtual Cloud Network (VCN) for a multi-tier web application that includes a web tier, application tier, and database tier. The architect needs to ensure that the database tier is secure and not directly accessible from the internet. Which design approach should the architect take to achieve this goal?

Accepted Answer

Place the database tier in a private subnet, ensuring it can only be accessed by the application tier in a separate subnet.

Question 19

A financial services company is planning to migrate its transactional database to Oracle Autonomous Database to handle increased customer transactions during peak periods. They want to ensure that the database can automatically adjust to varying workloads without manual intervention. Which feature of Oracle Autonomous Database best supports this requirement?

Accepted Answer

Automatic scaling of resources based on workload demands

Question 20

A financial services company is planning to implement a disaster recovery and high availability strategy for its critical applications hosted on Oracle Cloud Infrastructure. The company has two regions available and wants to ensure minimal downtime and data loss in case of a regional failure. Which approach would best meet the company\'s requirements for both disaster recovery and high availability?

Accepted Answer

Deploy the applications in both regions with active-active configuration, using load balancers to distribute traffic and replicating data in real-time.

Question 21

In a backend set within Oracle Cloud Infrastructure, you have 10 servers that undergo health checks every minute for a duration of 5 minutes. The successful health checks recorded for each server are as follows: 5, 4, 5, 3, 5, 2, 5, 4, 5, and 1. What is the overall success rate of the health checks expressed as a percentage?

Accepted Answer

$86\%$

Question 22

An architect is tasked with modifying the security list associated with a Virtual Cloud Network (VCN) that supports multiple subnets for a critical application. The architect needs to ensure that the changes do not disrupt existing services. What should the architect prioritize before making any modifications to the security list?

Accepted Answer

Assess the current traffic patterns and dependencies of the subnets using the security list.

Question 23

A financial services company is migrating its transaction processing system to Oracle Cloud Infrastructure. The system requires high performance for read-heavy operations, such as generating reports on customer transactions. The data model currently employs normalization to minimize redundancy. Given this scenario, which approach should the architect consider to optimize query performance while maintaining data integrity?

Accepted Answer

Implement a denormalized data model to reduce the number of joins in queries and improve read performance.

Question 24

A company is deploying a multi-tier web application in Oracle Cloud Infrastructure. The application consists of a front-end web server, a back-end application server, and a database server. The security team has mandated that the web server should only accept traffic from the internet, while the application server should only communicate with the web server and the database server should only accept traffic from the application server. Which security configuration would best meet these requirements while ensuring a high level of security?

Accepted Answer

Use Network Security Groups for each tier, applying specific ingress and egress rules tailored to each server's communication needs.

Question 25

A financial services company is planning to deploy its application across multiple regions in Oracle Cloud Infrastructure to enhance availability and disaster recovery. They need to ensure that user data is consistently replicated across regions while minimizing latency for users accessing the application. Which strategy should the architect recommend to achieve these goals effectively?

Accepted Answer

Implement a multi-master database configuration with asynchronous replication across regions to ensure high availability and low latency.

Question 26

A cloud architect is tasked with ensuring that a critical application hosted on Oracle Cloud Infrastructure maintains optimal performance. They decide to implement metrics and alarms to monitor the application\'s resource usage. After configuring an alarm for CPU utilization, they notice that the alarm is triggered frequently during peak usage hours. What is the most effective approach for the architect to take in this scenario?

Accepted Answer

Adjust the alarm threshold to a higher value to reduce the frequency of alerts during peak usage.

Question 27

A financial services company is migrating its transaction processing system to Oracle Cloud Infrastructure. They need to design a data model that supports high transaction volumes while ensuring data integrity and quick retrieval times. Which approach should they prioritize in their data model design to achieve optimal performance and reliability?

Accepted Answer

Implement a normalized relational database schema with appropriate indexing strategies to minimize redundancy and enhance query performance.

Question 28

A financial services company is migrating its data to Oracle Cloud Infrastructure and needs to decide between using a relational database and a NoSQL database for their transaction data. They require high availability and scalability due to fluctuating transaction volumes. Which approach would best suit their needs while ensuring efficient data retrieval and management?

Accepted Answer

Implement a NoSQL database that can handle high transaction volumes and provide horizontal scalability.

Question 29

A financial services company is deploying a new application on Oracle Cloud Infrastructure that requires high availability and performance. They want to ensure that any performance degradation is detected early to maintain service quality. Which approach should the company take to effectively utilize OCI Monitoring Services for this purpose?

Accepted Answer

Set up custom metrics and alarms to monitor application performance and resource utilization, ensuring notifications are sent to the operations team for immediate action.

Question 30

A financial services company is designing a new application that requires high-speed transactions and the ability to handle unstructured data, such as customer feedback and transaction logs. The architect is considering using both a relational database for structured data and a NoSQL database for unstructured data. Which approach best describes the architect\'s strategy for managing the data model and query language in this scenario?

Accepted Answer

Utilizing a hybrid approach that leverages SQL for structured data and a JSON-based query language for unstructured data.

Oracle Cloud Infrastructure 2024 Architect Professional Free Practice Test — 30 Questions

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