Task 2.1: Implement Scalability and Elasticity. SOA-C03 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which Auto Scaling feature is best suited for handling predictable traffic patterns, such as increased load during business hours or on specific dates?

   • ATarget tracking scaling
   • BLifecycle hooks
   • CScheduled scaling
   • DStep scaling
   Reveal Solution Discussion Select an answer first
2. 27expert · hard

   A company runs a batch processing application on EC2 instances in an Auto Scaling group. The batch runs every night at 2:00 AM and takes about 2 hours. The operations team has configured a scheduled scaling action to set desired capacity to 20 at 2:00 AM and to 2 at 4:00 AM. However, the batch sometimes runs longer than 2 hours, and the scale-in action at 4:00 AM terminates instances while the batch is still running. What should they do to prevent this?

   • ASet the scheduled scale-in action to a later time
   • BUse a lifecycle hook to delay termination until the batch completes
   • CUse a target tracking policy instead of scheduled scaling
   • DIncrease the cooldown period for the Auto Scaling group
   Reveal Solution Discussion Select an answer first
4. 28application · medium

   A company runs a social media application that stores user profiles in DynamoDB. The application frequently reads the same user profiles, and the database is experiencing high read load, leading to throttling and increased latency. The operations team wants to reduce the read load on DynamoDB and improve response times without changing the application's data model. What should they implement?

   • ASwitch the table to on-demand capacity mode
   • BEnable DynamoDB Accelerator (DAX) for the table
   • CCreate a read replica in another Region
   • DIncrease the provisioned read capacity units
   Reveal Solution Discussion Select an answer first
5. 29foundation · easy

   Which AWS service is designed to automatically adjust the number of EC2 instances in response to changing demand, helping you maintain application availability and optimize costs?

   • AAWS Elastic Beanstalk
   • BAWS Auto Scaling
   • CAWS Systems Manager
   • DAWS CloudFormation
   Reveal Solution Discussion Select an answer first
6. 30foundation · easy

   Which type of scaling policy adjusts the desired capacity of an Auto Scaling group based on a target value for a specific metric, such as maintaining CPU utilization at 50%?

   • ASimple scaling policy
   • BStep scaling policy
   • CScheduled scaling policy
   • DTarget tracking scaling policy
   Reveal Solution Discussion Select an answer first