Explain the Need and Benefits of Deduplication DATA-PROTECTION-MANAGEMENT-FOUNDATIONS Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   An organization replicates backups from a primary data center to a disaster recovery site over a WAN link. The backup data contains many duplicate blocks across different servers. The IT manager wants to reduce the amount of data sent over the WAN without changing the backup software. Which deduplication method should be implemented?

   • AUse a compression appliance at the WAN edge.
   • BSource-based deduplication on each server before data is sent to the backup target.
   • CEnable deduplication-aware replication on the backup storage system.
   • DTarget-based deduplication at the primary backup storage system.
   Reveal Solution Discussion Select an answer first
2. 2application · easy

   A backup administrator is configuring a new backup solution and wants to ensure that only unique data blocks are stored. Which feature should they enable?

   • AData compression
   • BData replication
   • CData encryption
   • DData deduplication
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   A company backs up 2 TB of virtual machines nightly to a local disk target. The data changes by only 5% each day, but the backup software stores full copies each night. The storage administrator is concerned about the rapid consumption of disk space and the time it takes to complete backups. Which deduplication approach would most directly address both concerns?

   • AEnable source-side deduplication so only unique blocks are sent to the backup target.
   • BSwitch to a tape library for nightly backups.
   • CIncrease the retention period for backups to keep more recovery points.
   • DCompress the backup data using a standard compression algorithm.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   How does deduplication affect network bandwidth usage during backup transfers?

   • AIt has no effect on bandwidth usage
   • BIt increases bandwidth usage because of additional metadata
   • CIt eliminates the need for network transfers entirely
   • DIt reduces bandwidth usage by transferring only unique data segments
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6. 5foundation · easy

   How does deduplication improve efficiency in a data protection system?

   • ABy reducing the amount of data that needs to be written to storage
   • BBy eliminating the need for backup software
   • CBy increasing the number of full backups required
   • DBy compressing all data to the smallest possible size
   Reveal Solution Discussion Select an answer first