Which of the following is an example of an authentication mechanism commonly used in cloud-native Java applications? 
Response: 
A. JSON Web Tokens (JWT) 
B. Simple Object Access Protocol (SOAP) 
C. Remote Method Invocation (RMI) 
D. Extensible Markup Language (XML) 
Answer: A 
Explanation: JSON Web Tokens (JWT) is a commonly used authentication mechanism in cloud-native Java applications. It allows for secure exchange of authentication and authorization information between parties, making it well-suited for distributed and microservices-based architectures. 
Question: 2 
Which technology is commonly used for containerization in the cloud-native ecosystem? 
Response: 
A. Docker 
B. Apache Tomcat 
C. Apache Kafka 
D. Jenkins 
Answer: A Explanation: Docker is a widely used technology for containerization in the cloud-native ecosystem. It provides a platform for building, packaging, and distributing applications as lightweight and portable containers, enabling easy deployment and scalability in cloud environments. 

Question: 3 
Which tool is commonly used for building and managing containerized applications in the cloud-native ecosystem? 
Response: 
A. Jenkins 
B. Kubernetes 
C. Ansible 
D. Apache Maven 
Answer: B 
Explanation: Kubernetes is a widely used container orchestration platform in the cloud-native ecosystem. It provides powerful tools for deploying, scaling, and managing containerized applications, making it an essential tool for cloud-native Java developers. 

Question: 4 
Which technology is commonly used for data persistence in cloud-native Java applications? 
Response: 
A. Relational databases 
B. XML files 
C. Flat files 
D. Message queues 
Answer: A 
Explanation: Relational databases are commonly used for data persistence in cloud-native Java applications. They provide a structured and scalable approach to storing and retrieving data, making them well-suited for cloud-native environments where data needs to be managed efficiently. 

Question: 5 
Which of the following best describes the concept of cloud-native Java? 
Response: 
A. Developing Java applications that can run on any cloud platform 
B. Developing Java applications using cloud-based IDEs 
C. Developing Java applications that are optimized for cloud environments 
D. Developing Java applications with a cloud-based database 
Answer: C 
Explanation: Cloud-native Java refers to the practice of developing Java applications that are specifically designed and optimized to run in cloud environments. It involves leveraging cloud-native technologies, such as containers and microservices, to build scalable, resilient, and easily deployable applications. 

Question: 6 
Which tool is commonly used for monitoring and troubleshooting microservices in a cloud-native environment? 
Response: 
A. Prometheus 
B. Apache Kafka 
C. Elasticsearch 
D. RabbitMQ 
Answer: A 
Explanation: Prometheus is a popular monitoring and alerting toolkit commonly used for monitoring and troubleshooting microservices in cloud-native environments. It provides powerful metrics collection and visualization capabilities, allowing developers and administrators to gain insights into the performance and health of their microservices. 

Question: 7 
Which of the following is NOT a benefit of using microservices architecture for developing cloud-native applications? 
Response: 
A. Improved scalability and fault isolation 
B. Enhanced developer productivity and agility 
C. Simplified deployment and management 
D. Increased security and data integrity 
Answer: D 
Explanation: While microservices architecture offers numerous benefits, such as improved scalability, developer productivity, and deployment simplicity, it does not inherently provide increased security and data integrity. Security 

Question: 8 
Which component in IBM Liberty is responsible for managing Liberty server instances, including starting, stopping, and monitoring? 
Response: 
A. Feature Manager 
B. Server.xml 
C. Liberty Profile 
D. Liberty Control Center 
Answer: A 
Explanation: The Feature Manager in IBM Liberty is responsible for managing Liberty server instances. It allows administrators to start, stop, and monitor Liberty servers, as well as install and uninstall features and applications. 

Question: 9 
Which of the following is NOT a common approach to testing microservices in a cloud-native Java application? 
Response: 
A. Unit testing 
B. Integration testing 
C. Load testing 
D. Monolithic testing Explanation: Monolithic testing is not a common approach for testing microservices in a cloud-native Java application. Monolithic testing typically refers to testing a monolithic application as a whole, rather than individual microservices. In a cloud-native architecture, where applications are composed of loosely coupled microservices, testing is typically focused on individual microservices and their interactions.