Computing in the Cloud CLOUD-DIGITAL-LEADER Practice Questions (Page 8)

Questions 36–40

1. 36foundation · easy

   What is a key benefit of using a load balancer?

   • AIt reduces the need for autoscaling.
   • BIt guarantees that all requests are processed instantly.
   • CIt automatically writes code to fix application errors.
   • DIt improves application reliability by routing traffic only to healthy instances.
   Reveal Solution Discussion Select an answer first
2. 37foundation · easy

   Which benefit is a direct result of the scalability of cloud compute?

   • AAll workloads become fault-tolerant without any configuration.
   • BCloud costs are always lower than on-premises costs.
   • CApplications are automatically rewritten to be more efficient.
   • DResources can be increased or decreased quickly to match changing demand.
   Reveal Solution Discussion Select an answer first
4. 38foundation · easy

   What is autoscaling in cloud computing?

   • AA feature that always keeps the maximum number of resources running
   • BA feature that scales storage capacity, not compute resources
   • CA feature that automatically adjusts the number of compute resources based on current demand
   • DA feature that manually scales resources when an administrator triggers it
   Reveal Solution Discussion Select an answer first
5. 39application · medium

   A company runs a critical web application on a fleet of virtual machines in a managed instance group. To improve reliability and ensure that traffic is distributed evenly, they want to add a layer that can detect unhealthy instances and route traffic only to healthy ones. What should they implement?

   • AA DNS record that points to a single instance with the highest capacity.
   • BA firewall rule that blocks traffic to instances that are not responding.
   • CAn autoscaling policy that adds more instances when traffic increases.
   • DA load balancer with a health check that forwards traffic only to instances that pass the check.
   Reveal Solution Discussion Select an answer first
6. 40application · medium

   A retail company runs a batch inventory-reconciliation job every night at 2:00 AM. The job is idempotent and can be safely restarted if interrupted. The company wants to minimize compute costs while maintaining the ability to run the job on a fixed schedule. What is the most cost-effective compute approach?

   • ADeploy the job on a preemptible VM with a Cloud Scheduler trigger and a startup script that runs the batch process.
   • BUse a serverless function with a maximum timeout of 15 minutes to process the entire batch.
   • CProvision a dedicated VM with a sole-tenant node to ensure the job runs without interference from other workloads.
   • DRun the job on a standard VM with a persistent disk and configure a maintenance window to avoid disruptions.
   Reveal Solution Discussion Select an answer first