Designing for Durability CERTIFIED-HYBRID-CLOUD-ARCHITECT Practice Questions (Page 3)

Questions 11–15

1. 11foundation · medium

   When designing a storage solution, what does the recovery point objective (RPO) specify?

   • AThe number of replicas needed to ensure durability.
   • BThe maximum acceptable amount of data loss measured in time.
   • CThe minimum storage capacity required for data protection.
   • DThe maximum acceptable downtime after a failure.
   Reveal Solution Discussion Select an answer first
2. 12foundation · medium

   Which design choice is most directly influenced by a strict recovery time objective (RTO)?

   • AThe speed of failover and data restoration processes.
   • BThe number of snapshots retained for backup.
   • CThe amount of data that can be lost in a disaster.
   • DThe encryption method used for data at rest.
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A cloud service provider is designing a new object storage tier for archival data. They want to maximize durability while minimizing storage overhead. The data is rarely accessed but must be recoverable even if multiple drives fail. Which approach best meets these requirements?

   • AUse SnapMirror to replicate the entire bucket to another region
   • BStore a single copy on a RAID 6 array
   • CUse erasure coding with a 4+2 scheme
   • DReplicate each object three times across different nodes
   Reveal Solution Discussion Select an answer first
5. 14foundation · medium

   What is the primary purpose of data durability in a storage system?

   • ATo maximize storage performance by using faster hardware components.
   • BTo guarantee that data is always accessible to applications without any downtime.
   • CTo minimize the cost of storage by using the least expensive storage media.
   • DTo ensure data remains intact and recoverable even after hardware failures or other disruptions.
   Reveal Solution Discussion Select an answer first
6. 15foundation · medium

   What is the primary advantage of erasure coding over replication for data durability?

   • AIt eliminates the need for backups.
   • BIt provides the same level of durability with less storage overhead.
   • CIt provides faster read performance than replication.
   • DIt is simpler to implement than replication.
   Reveal Solution Discussion Select an answer first