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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cloud Native Applications and Containerization | 33% | - Container Orchestration
|
| Topic 2: Monitoring and Troubleshooting Cloud Native Applications | 10% | - Monitoring, Logging, and Tracing
|
| Topic 3: Testing and Securing Cloud Native Applications | 13% | - Cloud Native Security
|
| Topic 4: Cloud Native Fundamentals | 11% | - Microservices Architecture
|
| Topic 5: Leveraging Serverless Technologies for Cloud Native Development | 33% | - OCI Queue
|
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質問 # 125
(CHK_4 > 2) Which TWO statements are NOT valid regarding the Oracle Cloud Infrastructure (OCI) Streaming service? (Choose two.)
正解：B、E
解説：
The two statements that are NOT valid regarding the Oracle Cloud Infrastructure (OCI) Streaming service are: A stream can be configured with either a public or a private endpoint with support for customer managed encryption keys. This statement is not valid because the OCI Streaming service currently supports only private endpoints. Customer managed encryption keys are not currently supported for OCI Streaming. OCI Streaming can support up to 2,000 requests per second to each partition. This statement is not valid because the throughput of a stream is not defined by the partition in terms of requests per second. The throughput of a stream is defined in terms of data input and output rates. Each partition provides 1 MB/sec data input and 2 MB/sec data output, but it does not correspond to a specific number of requests per second. The other statements are valid: OCI Streaming stores all data for 24 hours by default, but that can be extended up to 7 days. Although OCI Streaming automatically encrypts all data while in transit, it is the developer ' s responsibility to encrypt data at rest, if needed.
質問 # 126
Your enterprise is migrating a synchronous order fulfillment system to a distributed microservices architecture on Oracle Cloud Infrastructure. The development team originally implemented a Two-Phase Commit protocol to handle transactions spanning multiple databases, but it caused severe performance bottlenecks due to extended resource locking periods. You must now design a decentralized transaction strategy that processes steps as a sequence of independent local transactions, publishes events to coordinate subsequent steps, and executes compensating actions if a step fails. Which transaction design pattern should you implement to meet these requirements?
正解：A
解説：
The Saga Design Pattern is specifically intended for distributed transactions across microservices without the extended locking associated with Two-Phase Commit. Oracle explains that a Saga decomposes a business transaction into a sequence of independent local transactions. After completing its local operation, each service publishes an event or message that triggers the next participant. If a subsequent step fails, corresponding compensating transactions reverse previously completed operations and restore consistent business state. This approach shortens lock duration and supports eventual consistency across separate databases. Transactional Outbox solves reliable database-update-and-message-publishing coordination but does not by itself manage the entire distributed transaction sequence. Therefore, the required pattern is the Saga Design Pattern.
質問 # 127
To effectively test your cloud native applications for " unknown unknowns " , you need to employ various testing and deployment strategies. Which strategy involves exposing new functionality or features to only a small set of users?
正解：C
解説：
The strategy that involves exposing new functionality or features to only a small set of users is called Canary Deployment. Canary deployment is a technique used in software development and deployment where a new version of an application or feature is released to a small subset of users or a specific group of servers. This allows for testing and gathering feedback on the new functionality in a controlled and limited environment before making it available to a wider audience. In a canary deployment, a small portion of the traffic is routed to the new version while the majority of the traffic still goes to the stable version. This allows for monitoring and evaluation of the new functionality in real-world conditions while minimizing the impact of any potential issues or bugs. If the new version performs well and meets the desired criteria, it can then be gradually rolled out to a larger user base or all servers. By exposing the new functionality or features to a small set of users initially, canary deployment helps in identifying any unforeseen issues, gathering feedback, and ensuring the stability and reliability of the application before a full deployment.
質問 # 128
Your security operations team wants to analyze application diagnostic and access patterns across both service and custom logs. A new IAM user group named security-auditors has been formed, and members must run advanced ad-hoc queries using the OCI Logging Console Search page to parse through indexed logs in the tenancy. Your company security mandate dictates that they must only be granted the minimum required permissions necessary to successfully execute these search queries and view the results.
Which set of policy statements correctly implements this requirement?
正解：C
解説：
Oracle Logging explicitly states that searching indexed logs requiresread access to the log group and read permission on log content. The documented policies are allow group GroupA to read log-groups in tenancy and allow group GroupA to read log-content in tenancy. The read log-content permission grants LOG_CONTENT_READ, which enables users to inspect service and custom log contents and execute searches. manage log-groups is unnecessarily privileged because it allows administrative operations on logging resources. inspect does not provide sufficient access to actual log content, while use log-content is commonly associated with log ingestion and agents rather than least-privilege read-only searching. Therefore, B precisely implements the minimum permissions required for the security-auditors group to use OCI Logging Search.
質問 # 129
Which statement is NOT valid regarding the comparison between cloud-native and cloud-based applications?
正解：C
解説：
Option C reverses a fundamental cloud-native characteristic. Oracle describes cloud-native applications as being designed for automated scale-up and scale-down in response to changing workload demand.
Technologies including containers, Kubernetes, serverless architectures, microservices, and automated DevOps processes are specifically intended to reduce manual infrastructure management. Oracle also identifies scalability, resilience, reduced operational overhead, and cost optimization through cloud consumption models as major cloud-native advantages. Applications migrated to cloud infrastructure without substantial architectural modernization can retain monolithic dependencies, fixed capacity assumptions, and manual provisioning practices. Therefore, claiming that cloud-native applications require manual host provisioning while cloud-based applications automatically scale by default is technically inverted. C is consequently the NOT valid statement among the available choices.
質問 # 130
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