Business Continuity and Disaster Recovery in Cloud CCSE Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A company runs a database in a primary region and uses asynchronous replication to a secondary region. The RPO is 15 minutes and the RTO is 1 hour. During a disaster, the secondary database is promoted, but the team discovers that some transactions from the last 20 minutes are missing. What is the most likely cause?

   • AThe secondary database was not configured with automatic failover.
   • BThe backup schedule was set to every 30 minutes.
   • CThe network between regions was too slow during the disaster.
   • DAsynchronous replication can lag beyond the RPO, so data written in the last 20 minutes may not have been replicated.
   Reveal Solution Discussion Select an answer first
2. 12application · medium

   A company uses a cloud database with automated backups and point-in-time restore. The RPO is 5 minutes and the RTO is 30 minutes. The database is currently configured with a backup every 5 minutes. During a disaster, the team restores the database from the latest backup. What is the primary limitation of this approach?

   • ARestoring from a backup may take longer than 30 minutes, exceeding the RTO.
   • BThe database must be restored to a different region to meet compliance.
   • CThe backup every 5 minutes may not capture all transactions, so the RPO is not guaranteed.
   • DAutomated backups are not reliable and may fail silently.
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4. 13foundation · easy

   Why is it important to regularly test and validate a cloud BCDR plan?

   • ATo increase the cost of cloud services
   • BTo eliminate the need for backups
   • CTo comply with the requirement to test every day
   • DTo ensure that the plan remains effective and that teams are familiar with recovery procedures
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5. 14application · medium

   A financial services company runs a critical trading application in a single cloud region. The compliance team mandates that after a regional outage, the application must be fully operational within 15 minutes and no more than 5 minutes of transactions may be lost. The application uses a synchronous replication mechanism that mirrors data to a secondary region with a recovery time of 10 minutes. Which additional strategy best meets the stated RTO and RPO requirements?

   • ADeploy a warm standby site in the secondary region with pre-provisioned compute and automated DNS failover.
   • BUse a cold site in the secondary region and restore from the latest backup taken every 30 minutes.
   • CImplement a hot standby with active-active traffic and no automated failover, relying on manual DNS update.
   • DIncrease backup frequency to every 5 minutes and rely on manual failover to the secondary region.
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6. 15expert · hard

   A company runs a stateful application on VMs in a single region. The application requires low latency between nodes and cannot tolerate split-brain scenarios. The company wants to protect against a regional outage but has a limited budget. Which approach best balances availability and cost while avoiding split-brain?

   • ADeploy the application in two availability zones within the same region and use a load balancer.
   • BUse a single active region with synchronous replication to a standby region and automated failover with a quorum-based mechanism.
   • CUse a cold site with daily backups and no automated failover.
   • DRun active-active in two regions with asynchronous replication and let each region handle its own traffic.
   Reveal Solution Discussion Select an answer first