Explain Aspects of Operating Within the Cloud. CLO-002 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

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

   • ATo replicate data across multiple regions
   • BTo back up data on a scheduled basis
   • CTo automatically adjust the number of resources based on current demand
   • DTo manually resize virtual machines when needed
   Reveal Solution Discussion Select an answer first
2. 27foundation · easy

   How do availability zones contribute to service reliability?

   • ABy storing backups in a different country
   • BBy providing redundant resources that can fail over if one zone experiences an outage
   • CBy automatically scaling resources based on demand
   • DBy encrypting all data stored in the region
   Reveal Solution Discussion Select an answer first
4. 28expert · hard

   A company runs a critical database that must be recoverable within 15 minutes of a failure. The database changes frequently throughout the day. The company currently takes a full backup every night and stores it in the same region. The recovery time is currently two hours. Which change should the company make to meet the recovery time objective?

   • ARight-size the database server to a larger instance to speed up the restore process
   • BTake a full backup every night and store it in a different region
   • CTake a full backup every hour and store it in the same region
   • DImplement continuous data replication to a standby database in a different availability zone
   Reveal Solution Discussion Select an answer first
5. 29expert · hard

   A company's disaster recovery plan requires that data be recoverable within one hour of a regional failure. The company currently replicates data asynchronously to a secondary region and restores from backups, which takes four hours. The company wants to reduce recovery time without changing the replication method. Which change should the company make?

   • AMaintain a standby application environment in the secondary region that can be activated quickly
   • BTake more frequent backups in the primary region
   • CSwitch to synchronous replication to the secondary region
   • DStore backups in a third region
   Reveal Solution Discussion Select an answer first
6. 30application · medium

   A development team runs a test environment that is used only during business hours. The environment consists of several virtual machines that are idle at night and on weekends. The company wants to reduce cost while keeping the environment available during working hours. Which approach best meets this requirement?

   • ASchedule the virtual machines to shut down automatically at 7 PM and start at 7 AM on weekdays
   • BRight-size the virtual machines to a smaller size and keep them running 24/7
   • CKeep the virtual machines running continuously to avoid any startup delay
   • DEnable auto-scaling to add more virtual machines during business hours
   Reveal Solution Discussion Select an answer first