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

Question 1

A company is deploying a new application on Oracle Cloud Infrastructure that requires high I/O performance for its database. The development team is considering using Block Storage for this purpose. They need to ensure that the storage solution can handle peak loads efficiently while also providing data protection. Which approach should the team take to optimize their Block Storage usage for this application?

Accepted Answer

Provision Block Storage volumes with the highest performance tier and implement regular snapshots for data protection.

Question 2

In a cloud application utilizing an event-driven architecture, events are generated at a rate of $r = 150$ events/second, while the processing capacity is $C = 100$ events/second. If the initial backlog is $B(0) = 50$ events, how long will it take for the backlog to reach $B_{max} = 200$ events?

Accepted Answer

$3 	ext{ seconds}$

Question 3

A company is experiencing rapid growth and anticipates a significant increase in user traffic to its web application hosted on Oracle Cloud Infrastructure. The development team is tasked with ensuring that the application can scale effectively while maintaining optimal performance. Which strategy should the team prioritize to achieve this goal?

Accepted Answer

Implement a load balancer to distribute incoming traffic across multiple instances of the application.

Question 4

A developer is tasked with automating the deployment of a new application on Oracle Cloud Infrastructure using the OCI CLI. They need to ensure that the CLI commands they execute are targeting the correct compartment and region, as well as handling any potential errors gracefully. Which approach should the developer take to achieve this?

Accepted Answer

Configure the CLI with the appropriate profile that specifies the desired region and compartment, and use error handling in their scripts to manage command failures.

Question 5

A financial services company is planning to migrate its applications to Oracle Cloud Infrastructure (OCI) and is particularly concerned about meeting compliance requirements for sensitive customer data. They want to ensure that their cloud environment adheres to industry standards and can demonstrate compliance during audits. Which compliance certification should the company prioritize to ensure that OCI meets the necessary security and operational controls for handling financial data?

Accepted Answer

PCI DSS

Question 6

A financial services company is reviewing its security architecture to enhance its data protection measures. They are considering various access control models to implement across their Oracle Cloud Infrastructure environment. Which access control model should they prioritize to ensure that users have only the permissions necessary for their roles, thereby minimizing security risks?

Accepted Answer

Implement a least privilege access model that restricts user permissions to the minimum required for their job functions.

Question 7

A company is developing a new application that requires rapid scaling to handle unpredictable traffic spikes. They are considering using Oracle Cloud Infrastructure\'s serverless functions for this purpose. Which of the following statements best captures the advantages of adopting a serverless architecture in this scenario?

Accepted Answer

Serverless functions automatically scale based on demand, allowing the company to handle traffic spikes efficiently without provisioning additional resources manually.

Question 8

A developer is tasked with integrating an application with Oracle Cloud Infrastructure services. The application will be deployed in a production environment and needs to ensure secure and efficient access to OCI resources. The developer is considering using either API keys or tokens for authentication. Given the need for enhanced security and the potential for frequent access requests, which authentication method should the developer choose to best meet these requirements?

Accepted Answer

Use tokens for authentication, as they provide session management and are typically short-lived, reducing the risk of unauthorized access.

Question 9

A company is deploying a new application in Oracle Cloud Infrastructure that requires certain backend services to access external APIs for data processing. However, these backend services should not be directly accessible from the internet for security reasons. Which gateway configuration should the company implement to achieve this requirement while ensuring that the backend services can still communicate with the internet?

Accepted Answer

NAT Gateway

Question 10

A company is deploying a multi-tier application in Oracle Cloud Infrastructure, where the web servers need to communicate with the application servers, and the application servers need to access a database server. The security requirements dictate that only the web servers should be able to access the application servers, and only the application servers should be able to access the database server. Given this scenario, which approach would best meet the company\'s security needs while allowing for flexibility in managing access controls?

Accepted Answer

Utilize Network Security Groups to define specific rules for each tier of the application, ensuring that only designated instances can communicate with each other.

Question 11

A company is experiencing slow response times in their web application hosted on Oracle Cloud Infrastructure. They have identified that the application frequently accesses a specific dataset that does not change often. Which performance optimization technique should they implement to improve the application\'s response time for this dataset?

Accepted Answer

Implement an application-level caching mechanism to store the frequently accessed dataset in memory.

Question 12

A company is planning to deploy a new application that requires significant computational power for data analysis and machine learning tasks. They need to ensure that the instance type they choose can handle high-performance workloads while also allowing for flexibility in resource allocation as the application scales. Which compute instance type would best meet these requirements?

Accepted Answer

VM.Standard.E3.Flex

Question 13

A developer is tasked with setting up a highly available file storage solution in Oracle Cloud Infrastructure for a web application that requires multiple compute instances to access the same file system. They need to ensure that the file system is mounted efficiently and securely across all instances. Which approach should the developer take to achieve optimal performance and availability?

Accepted Answer

Create multiple mount targets in different availability domains for the same file system to ensure redundancy and load balancing.

Question 14

A retail company is planning to migrate its order processing system to a serverless architecture on Oracle Cloud Infrastructure. They want to ensure that their application can handle sudden spikes in traffic during sales events without manual intervention. Which approach should they prioritize to effectively utilize serverless computing in this scenario?

Accepted Answer

Implement event-driven functions that automatically scale based on incoming order requests.

Question 15

A developer is tasked with creating a serverless application that processes images uploaded to Oracle Cloud Infrastructure Object Storage. The application should automatically trigger a function to resize images whenever a new image is uploaded. Which integration method would be the most effective for achieving this functionality while ensuring minimal latency and high responsiveness?

Accepted Answer

Utilize Oracle Cloud Events to trigger an Oracle Function upon the upload of an image to Object Storage.

Question 16

A developer is tasked with deploying a multi-tier application using Terraform. The application consists of a web server that requires a specific network interface to function correctly. The developer has defined both the web server and the network interface in the Terraform configuration but is unsure how to ensure that the network interface is created before the web server. What is the best approach for the developer to achieve this dependency management in Terraform?

Accepted Answer

Use the `depends_on` argument in the web server resource definition to explicitly declare the dependency on the network interface.

Question 17

A software development team is working on a project hosted in Oracle Cloud Infrastructure and has set a monthly budget of $5,000. Midway through the month, they receive an alert indicating that they are projected to exceed their budget by 20% due to increased resource usage. What is the most effective action the team should take to manage their budget and avoid overspending?

Accepted Answer

Analyze the current resource usage and identify any underutilized resources that can be scaled down or terminated to reduce costs.

Question 18

In a database model, you have two entities, $A$ and $B$, where the number of elements in $A$ is $|A| = 10$ and the number of elements in $B$ is $|B| = 30$. If each element in $A$ maps to $k$ elements in $B$, what is the average number of mappings per element in $B$?

Accepted Answer

$3$

Question 19

A company is deploying a new web application on Oracle Cloud Infrastructure that is expected to experience variable traffic patterns, including sudden spikes during promotional events. The development team is tasked with ensuring that the application can handle these spikes without performance degradation. Which strategy should the team prioritize to achieve optimal performance and scalability?

Accepted Answer

Implement autoscaling to automatically adjust the number of compute instances based on traffic demand.

Question 20

A financial services company is developing a new application that will expose several APIs to third-party developers. They want to ensure that their APIs are secure, scalable, and can handle varying traffic loads. Which feature of the Oracle Cloud Infrastructure API Gateway would best support their requirements for managing access and controlling the flow of requests to their backend services?

Accepted Answer

The ability to implement rate limiting and authentication mechanisms for API requests

Question 21

A software development team is planning to deploy a new application that requires significant computational power for data processing and analytics. They are considering different compute instance types in Oracle Cloud Infrastructure. Which instance type would best suit their needs, considering they also want to maintain cost efficiency while ensuring high performance?

Accepted Answer

VM.Standard.E4.Flex, which allows for flexible OCPU and memory configurations tailored to high-performance workloads.

Question 22

A financial services company is planning to deploy a critical application on Oracle Cloud Infrastructure. They want to ensure maximum availability and fault tolerance for their services. Given the architecture of OCI, what strategy should they adopt regarding the use of Regions and Availability Domains?

Accepted Answer

Deploy the application across multiple Availability Domains within the same Region to enhance fault tolerance and availability.

Question 23

A financial services company is looking to enhance its customer service operations by integrating advanced technologies into its cloud infrastructure. They want to implement a solution that minimizes server management while maximizing scalability and responsiveness to customer inquiries. Which emerging technology trend should the company prioritize to achieve these goals effectively?

Accepted Answer

Serverless computing to automatically scale resources based on demand

Question 24

A financial services company is planning to migrate its existing on-premises database to the cloud. They require a solution that minimizes administrative overhead while ensuring high availability and scalability for their transaction processing applications. Which database deployment option in Oracle Cloud Infrastructure would best meet their needs?

Accepted Answer

Autonomous Database

Question 25

In a scenario where a developer is tasked with building a scalable web application on Oracle Cloud Infrastructure, which of the following objectives should the developer prioritize to ensure optimal performance and cost-effectiveness?

Accepted Answer

Selecting the appropriate compute shape and configuring auto-scaling policies based on traffic patterns

Question 26

In a scenario where a developer is tasked with designing a multi-tier application on Oracle Cloud Infrastructure, which architectural feature should they prioritize to ensure optimal performance and security across different application layers?

Accepted Answer

Utilizing Virtual Cloud Networks (VCNs) to segment application tiers and control traffic flow

Question 27

A company is developing a cloud-native application that needs to respond to changes in its Oracle Cloud Infrastructure environment. They want to ensure that whenever a new compute instance is created, a notification is sent to their monitoring system for tracking purposes. Which approach should they take to implement this functionality effectively?

Accepted Answer

Utilize Oracle Cloud Events to create a rule that triggers a notification whenever a new compute instance is created.

Question 28

A software development team is working on a project hosted in Oracle Cloud Infrastructure and has set a monthly budget of $5,000 for cloud resources. Midway through the month, they receive an alert indicating that they are projected to exceed their budget by 20% due to unexpected usage spikes. What is the most effective action the team should take to manage their budget and prevent overspending?

Accepted Answer

Analyze the cost breakdown to identify which services are driving the increased usage and adjust resource allocation accordingly.

Question 29

A company is developing a new web application that will be accessed by users worldwide. They need to ensure that the application can handle varying traffic loads while maintaining high availability. Additionally, they want to implement security measures to protect their backend services. Which type of load balancer should the company primarily consider for this application, and why?

Accepted Answer

Public load balancer, as it allows external access and can distribute traffic efficiently across multiple backend servers.

Question 30

A developer is tasked with automating the deployment of multiple compute instances in Oracle Cloud Infrastructure using the CLI. They need to ensure that the instances are created in a specific availability domain and with a particular shape and image. Which command structure should the developer use to achieve this, ensuring that they can also handle potential errors during execution?

Accepted Answer

oci compute instance launch --availability-domain --shape --image-id --wait-for-state RUNNING

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

A lot more is already mapped out

About the Oracle Cloud Infrastructure 2024 Developer Professional Certification