Oracle 1z0-1119-1 Oracle Cloud Infrastructure for Sunbird Ed Specialty - Rel 1 Exam Practice Test

For a knowledge microservice, a combination of Neo4J, Cassandra, and Cloud Storage would provide a robust solution. Neo4J offers graph database capabilities for complex queries andrelationships, Cassandra provides scalable and high-performance data management, and Cloud Storage offers a flexible solution for storing large amounts of unstructured data.

Compartments in Oracle Cloud Infrastructure are used to logically organize and isolate OCI resources. They provide a way to separate resources for different projects or departments and control access through policies, aligning with governance and business requirements.

Redis Cluster provides a way to run a Redis installation where data is automatically sharded across multiple Redis nodes. It's designed for horizontal scaling and high availability, which includes partitioning data across multiple nodes to enhance performance and ensure availability.

The primary purpose of distributing compute instances across different Fault Domains within an availability domain is to protect against unexpected hardware failures and ensure high availability. Fault Domains provide a way to distribute instances such that they are not on the same physical hardware, reducing the risk of simultaneous failures affecting all instances.

When creating the infrastructure for Sunbird ED deployment, it is essential to create a NAT Gateway for enabling private resources to access the internet without direct exposure, a Service Gateway for private access to Oracle services without internet exposure, and Network Security Groups (NSGs) for defining security rules for VMs. Creating Reverse DNS records is not typically a required step in this context, making options (i), (ii), and (iii) the correct actions to perform.

In the context of microservices architecture, services like User-Org-Service and Learning-Service are commonly exposed to handle specific functionalities such as user and organization management, and learning management respectively. Batch-Service, Knowledge-Service, and Certificate-Service might be part of the ecosystem but the naming convention suggests that User-Org-Service and Learning-Service are more likely to be the core services exposed by an educational platform like Sunbird Lern.

To replay all messages in a Kafka topic using a Flink job, you would typically stop the job, reset the consumer group offset to the earliest position (often referred to as 'oldest'), and then restart the job. This process ensures that the Flink job will reprocess all messages from the beginning of the topic.

The minimum bandwidth for a flexible load balancer in OCI is 10 Mbps. This allows for granular control over the load balancer's capacity, enabling it to be precisely tailored to the application's needs, such as the Player microservice in Sunbird ED Portal, ensuring efficient distribution of traffic and optimal resource utilization.

The SQL WHERE keyword is used to specify a condition while fetching data from a single table or by joining with multiple tables. If the given condition is satisfied, then it returns the specific value from the table.

Keycloak is an open-source Identity and Access Management solution used for modern applications and services. It is designed to work with authentication and authorization tokens. In a microservices architecture, the public key from a service like Keycloak would be used to validate authentication tokens, ensuring secure communication between services.

Grafana is a popular open-source platform for monitoring and observability, widely used for real-time data visualization with support for various data sources, including cloud services and databases, making it an ideal choice for real-time monitoring and visualization of key performance metrics.

The health of an instance in the context of OCI Load Balancer does not directly depend on its availability domain. Instances can be in different availability domains from the Load Balancer and still receive traffic as long as they are within the same region and the network configuration allows it. Typical reasons for an instance to be marked as Critical include failing health checks due to issues like improper security group configurations or the instance not responding correctly, but not because of its placement in a different availability domain.