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Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q194-Q199):

NEW QUESTION # 194
You are developing a serverless application using Azure Functions that processes real-time streaming dat
a. How would you ensure reliable and efficient data ingestion from a Kafka topic to your Azure Functions?

A. Use Azure Service Bus to act as a message broker between Kafka and Azure Functions.
B. Configure Azure Functions to poll Kafka topics directly-
C. Use Azure Event Hubs to connect Kafka to Azure Functions-
D. Use a custom connector to integrate Kafka with Azure Functions.
E. Utilize Azure Data Factory to create pipelines for data movement between Kafka and Azure Functions.

Answer: C

Explanation:
Azure Event Hubs is the recommended approach for connecting Kafka to Azure Functions for real-time streaming data ingestion. It offers high throughput and scalability, making it ideal for handling large volumes of streaming events. Service Bus (B) is suitable for message queuing but not primarily designed for streaming data. Directly polling Kafka topics (C) can be inefficient and might not scale well. Custom connectors (D) can be complex and might lack the required functionality for streaming data ingestion. Data Factory (E) is more focused on data movement and transformation, not real-time streaming

NEW QUESTION # 195
You are building a web application that needs to serve traffic through a load balancer. Which Kubernetes resource should you use to expose the application service externally?

A. Deployments
B. Ingress
C. ConfigMaps
D. StatefulSets
E. Services

Answer: B

Explanation:
Ingress is a Kubernetes resource used to define rules for how external traffic is routed to different services within your cluster. It allows you to configure load balancers, SSL termination, and other advanced routing features.

NEW QUESTION # 196
Which statement is true about Pod Networking?

A. All containers in a pod get a unique IP address
B. All pod requires NAT to get a unique IP address.
C. All containers in a pod share a single IP address
D. All pod requires an external DNS server to get the hostname

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/workloads/pods/#pod-networking

NEW QUESTION # 197
You are building a distributed system with microservices deployed in a Kubernetes cluster. Each microservice has its own database. How would you manage the consistency and reliability of data across these microservices?

A. Use a shared database for all microservices
B. Use a combination of event sourcing and CQRS (Command Query Responsibility Segregation)
C. Implement a distributed database system
D. Implement a distributed transaction manager
E. Use a message broker to ensure data synchronization

Answer: B,C,D,E

Explanation:
Managing data consistency and reliability in a distributed system with microservices is a complex challenge- There are various approaches to achieve this, including: Distributed Database System: Using a distributed database system like Cassandra or MongoDB allows for data replication and fault tolerance across different nodes. This ensures data availability and consistency. Message Broker A message broker can facilitate data synchronization between microservices- Messages are used to communicate data changes and ensure that all services are aware of the latest state. Distributed Transaction Manager: A distributed transaction manager ensures that multiple transactions across different microservices are completed as a single atomic operation. This helps maintain data consistency and integrity. Event Sourcing and CQRS: Event sourcing involves storing a sequence of events that represent changes to the system. CQRS (Command Query Responsibility Segregation) separates commands (which modify data) from queries (which retrieve data). This approach can help manage data consistency and provide a more robust architecture. The best approach depends on the specific requirements of your application, such as data consistency levels, performance needs, and scalability requirements.

NEW QUESTION # 198
Flux is built using which toolkit?

A. GitOps
B. CI/CD
C. DevSecOps
D. DevOps

Answer: A

Explanation:
https://fluxcd.io/

NEW QUESTION # 199
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