Recognize Infrastructure Concepts DA0-001 Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A company runs a batch analytics job nightly on an on-premise cluster. The job takes 4 hours. The company is considering moving to the cloud to handle occasional 10x data volume spikes. The team must minimize cost while ensuring the job completes within the same 4-hour window even during spikes. Which approach is most appropriate?

   • AMove to a cloud serverless function that processes the entire batch job in a single invocation.
   • BUse a cloud-based elastic cluster that scales up during spikes and down during normal operation.
   • CMove to a cloud VM cluster sized for the peak volume and run it 24/7.
   • DKeep the on-premise cluster and add more nodes to handle the peak volume.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A data engineering team develops a Python ETL script that must run identically across a developer's laptop, a test server, and a production cloud VM. The team wants to ensure the script's dependencies and runtime environment are consistent everywhere. Which approach best achieves this?

   • APackage the script and its dependencies into a Docker container and run it on each environment.
   • BInstall Python and the required libraries manually on each machine.
   • CCreate a virtual environment on each machine and install dependencies from a requirements file.
   • DUse a cloud VM and run the script only there, skipping local testing.
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   A development team creates a container image for a data transformation job. They want to ensure the image is built once and can be deployed to both a cloud environment and an on-premise server without modification. Which characteristic of containerization makes this possible?

   • AContainers are tied to the specific cloud provider's infrastructure.
   • BContainers bundle the application and its dependencies, making them portable across environments.
   • CContainers include a full operating system for each deployment.
   • DContainers require the same operating system on the host as the application.
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   Which of the following is a common component of on-premise data infrastructure?

   • AManaged database service
   • BVirtual private cloud (VPC)
   • CServerless computing platform
   • DPhysical servers and storage area networks (SANs)
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6. 20foundation · easy

   Which of the following is a key difference between cloud storage and on-premise storage?

   • ACloud storage provides on-demand scalability, while on-premise storage has fixed capacity
   • BCloud storage requires physical maintenance by the organization
   • COn-premise storage is accessible from anywhere with an internet connection
   • DOn-premise storage is always less expensive than cloud storage
   Reveal Solution Discussion Select an answer first