Application Architectures and Development Lifecycle DSE Practice Questions (Page 8)

Questions 36–40

1. 36foundation · easy

   In a client-server architecture, what is the primary role of a client?

   • ATo execute business logic for multiple clients simultaneously.
   • BTo request services or resources from a server.
   • CTo manage network security for all connected devices.
   • DTo store all application data permanently.
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2. 37foundation · easy

   What is the primary purpose of a message broker in an event-driven architecture?

   • ATo execute business logic on behalf of the consumers.
   • BTo generate events on behalf of the producers.
   • CTo replace the need for any database in the system.
   • DTo decouple event producers from consumers by managing the event queue or topic.
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4. 38application · medium

   A startup wants to run a background job that processes uploaded images. The job runs for up to 5 minutes and is triggered by new uploads. The team wants to minimize operational overhead and pay only for actual executions. Which approach is most appropriate?

   • ADeploy a container on a Kubernetes cluster with a persistent pod that polls for new uploads
   • BUse a serverless function that is triggered by the upload event and processes the image within the execution timeout
   • CProvision a dedicated VM that runs the image processing script continuously
   • DUse a long-running batch job on a scheduled VM that runs every hour
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5. 39expert · hard

   A company's CI/CD pipeline currently runs unit tests and deploys to production automatically. After a recent security incident, they want to add security checks without significantly increasing the pipeline duration. The team is considering adding SAST, DAST, and dependency scanning. Which combination provides the best security coverage while minimizing pipeline impact?

   • AAdd SAST and dependency scanning to the build stage, and run DAST in a staging environment after deployment.
   • BAdd only DAST to the pipeline, running it against the production environment.
   • CAdd SAST, DAST, and dependency scanning all in the build stage.
   • DAdd only SAST to the pipeline, skipping dependency scanning and DAST.
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6. 40expert · hard

   An enterprise has multiple applications that need to share a common customer validation service. The service must be reusable across different platforms and loosely coupled from the consuming applications. The team is deciding between SOA and microservices. Which consideration is most important when choosing SOA over microservices?

   • ASOA typically uses an enterprise service bus to mediate communication, which can centralize governance and reuse
   • BSOA is always easier to deploy than microservices
   • CSOA requires every service to have its own database
   • DSOA mandates synchronous communication only
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