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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cloud Native Fundamentals | 11% | - Cloud-native principles and microservices architecture - DevOps concepts and CI/CD workflows - OCI developer services and tools overview |
| Topic 2: Leveraging Serverless Technologies for Cloud Native Development | 33% | - Oracle Functions development and management - Event-driven architecture with OCI Events, Streaming, and Queue - API-driven architectures using API Gateway |
| Topic 3: Cloud Native Applications and Containerization | 33% | - Oracle Container Registry (OCIR) usage - Building containerized applications with Docker - Deployment and management with Oracle Kubernetes Engine (OKE) |
| Topic 4: Monitoring & Troubleshooting Cloud Native Applications | 10% | - Application performance monitoring and tracing - Centralized logging and metrics collection - Troubleshooting containerized and serverless workloads |
| Topic 5: Testing and Securing Cloud Native Applications | 13% | - Secrets management with OCI Vault - Testing strategies and secure deployment configurations - Application security best practices |
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NEW QUESTION # 165
You are troubleshooting a containerized microservice on a development host and need to obtain its full configuration metadata, including network settings and volume mounts, in JSON format. Which command should you run to retrieve this detailed information?
Answer: B
Explanation:
The docker inspect command retrieves detailed low-level metadata for Docker objects and returns the information in JSON format by default. Oracle ' s Docker documentation explicitly states that docker inspect can obtain full information about a container in JSON format and can expose specific configuration elements through formatting options. This includes network configuration, mapped ports, mounted storage, environment details, container state, and other runtime properties. docker stats provides live CPU, memory, network, and I/O utilization rather than static configuration metadata. docker history examines the image layer history and Dockerfile-derived changes. docker system provides system-wide administration commands and cleanup operations rather than detailed inspection of an individual container. Therefore, docker inspect is the appropriate troubleshooting command.
NEW QUESTION # 166
Which statement is NOT valid regarding pulling and pushing container images in Oracle Cloud Infrastructure Registry (OCIR)?
Answer: A
Explanation:
Statement C is invalid. Oracle states that creating a repository before pushing is the normal workflow.
Automatic repository creation occurs only when the tenancy settingCreate repository on first push in root compartmentis enabled and the user has appropriate permissions. Even then, the new private repository is created in the tenancy ' sroot compartment, not a user ' s "home compartment." Oracle Container Registry is OCI-compliant and supports standard Docker commands. Public repositories can be pulled by anyone with internet access and the appropriate image URL without authenticating first. For pushing, Docker images are tagged using a registry path containing the regional registry domain, tenancy namespace, repository name, and version. The tenancy namespace is the automatically generated namespace associated with Object Storage. Therefore, C misstates both the default behavior and repository location.
NEW QUESTION # 167
Which master encryption key shape algorithm must be used when configuring a customer-managed key to encrypt a secret in the Oracle Cloud Infrastructure (OCI) Vault?
Answer: B
Explanation:
OCI Secret Management requires asymmetric encryption keywhen a Vault key is selected to encrypt secret contents. Oracle explicitly states that asymmetric keys cannot be used for secret encryption. Of the listed algorithms, AES is the supported symmetric key-shape algorithm; RSA and ECC are asymmetric algorithms, while 3DES is not an available OCI Vault master-key shape for this purpose. OCI Vault supports AES symmetric keys for encryption and decryption, typically using a 256-bit key length. Therefore, when creating a customer-managed key intended to protect OCI secrets, the appropriate key algorithm is Advanced Encryption Standard (AES). This requirement ensures that secret bundles can be encrypted and decrypted through the Vault cryptographic service.
NEW QUESTION # 168
You have two microservices, A and B, running in production. Service A relies on APIs from service B. You want to test changes to service A without deploying all of its dependencies, which include service B. Which approach should you take to test service A?
Answer: C
Explanation:
API mocking is a technique that simulates the behavior of real APIs without requiring the actual implementation or deployment of the dependent services1. API mocking allows you to test changes to service A without deploying all of its dependencies, such as service B, by creating mock responses for the APIs that service A relies on1. API mocking has several benefits, such as1:
* Faster testing: You can test your service A without waiting for service B to be ready or available, which reduces the testing time and feedback loop.
* Isolated testing: You can test your service A in isolation from service B, which eliminates the possibility of external factors affecting the test results or causing errors.
* Controlled testing: You can test your service A with different scenarios and edge cases by creating mock responses that mimic various situations, such as success, failure, timeout, etc.
NEW QUESTION # 169
Your company has recently deployed a new web application that uses Oracle Functions. Your manager instructs you to implement monitoring metrics to manage your systems more effectively. You know that Oracle Functions automatically monitors functions on your behalf and reports metrics via Oracle Cloud Infrastructure (OCI) Monitoring. Which TWO metrics are collected and made available by this feature?
(Choose two.)
Answer: B,E
Explanation:
The correct answers are: Amount of RAM used by a function: Oracle Functions collects and reports the amount of memory (RAM) used by a function during its execution. This metric helps in monitoring and optimizing the resource consumption of functions. Length of time a function runs: Oracle Functions captures and provides the duration of function executions. This metric allows you to track the performance and responsiveness of your functions and identify any potential bottlenecks or delays. These metrics provide valuable insights into the resource utilization and performance of your functions, enabling you to monitor and optimize their behavior in the Oracle Cloud Infrastructure (OCI) environment.
NEW QUESTION # 170
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