Deploy Modern Applications in the Cloud CERTIFIED-HYBRID-CLOUD-IMPLEMENTATION-ENGINEER Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A company is migrating a monolithic application to a microservices architecture. The application currently has a single codebase and a single database. The team wants to adopt twelve-factor principles. They are debating whether to split the database into multiple smaller databases, one per service. What is the primary trade-off they must consider?

   • ADatabase-per-service is always the best choice and has no significant drawbacks
   • BDatabase-per-service simplifies data management but makes it harder to scale the application
   • CA single shared database is the only way to ensure data consistency in a microservices architecture
   • DDatabase-per-service improves isolation and independent scaling but introduces the complexity of managing distributed data and transactions
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A development team has containerized a new application. They need to ensure that the container images are stored securely and are accessible to their Kubernetes cluster in a private cloud environment. The team also wants to enforce vulnerability scanning on the images before they are deployed. What should the team implement?

   • AStore the images on a network file share and mount them directly to the Kubernetes nodes
   • BUse a private container registry integrated with the cloud provider's security services
   • CBuild the images directly on each Kubernetes node to avoid the need for a registry
   • DPush the images to a public container registry and reference them directly in the Kubernetes manifests
   Reveal Solution Discussion Select an answer first
4. 18expert · hard

   A company is modernizing a legacy application. The application has a stateful database component and a set of stateless web frontends. The team wants to reduce operational overhead and is evaluating deployment models. They have a strong preference for not managing virtual machines or the Kubernetes control plane. However, they also need to be able to run custom code and libraries that are not natively supported by a fully managed PaaS. Which approach best balances these constraints?

   • ADeploy the entire application, including the database, on a single large IaaS VM
   • BUse a serverless functions platform for both the frontends and the database
   • CUse a fully managed PaaS for the frontends and a containerized database on a VM
   • DUse a managed Kubernetes service for the stateless frontends and a managed database service for the stateful component
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A company is refactoring a legacy monolithic application into a cloud-native architecture. The goal is to improve scalability and resilience. The team has decided to break the application into smaller, independent services. Which design principle is most critical for the team to follow to ensure the new services can scale independently?

   • AEnsure each service is stateless and stores any required state in an external data store
   • BUse a shared database schema across all services to maintain data consistency
   • CDeploy all services as part of a single large deployment unit to simplify management
   • DImplement synchronous communication between all services to reduce latency
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   What is the primary purpose of auto-scaling in a cloud environment?

   • ATo manually increase resources during peak times
   • BTo automatically adjust the number of resources based on demand
   • CTo eliminate the risk of application failures
   • DTo reduce the need for monitoring
   Reveal Solution Discussion Select an answer first