Data Backup and Retention NDE Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   In the 3-2-1 backup rule, what does the '3' represent?

   • AThree copies of the data
   • BThree different types of backup media
   • CThree days of retention for backups
   • DThree separate geographic locations
   Reveal Solution Discussion Select an answer first
2. 27expert · hard

   A government agency must retain email records for 10 years per public records law. They also need to recover accidentally deleted emails from the last 30 days. Currently, they run a nightly full backup of the mail server and keep the backup tapes for 10 years. Which improvement best addresses both the retention and recovery requirements while reducing storage waste?

   • AContinue nightly full backups and keep all tapes for 10 years.
   • BKeep the nightly full backups for 30 days, then move emails to an archival system for 10 years.
   • CSwitch to incremental backups and keep only the full backup for 10 years.
   • DMove all emails to archival storage immediately and delete the backups.
   Reveal Solution Discussion Select an answer first
4. 28application · medium

   A company's legal department receives a litigation hold notice requiring that all emails related to a pending lawsuit be preserved. The company's normal email retention policy deletes emails older than 90 days. What should the IT department do?

   • AArchive emails older than 90 days to a separate storage system and then delete the originals.
   • BDelete emails older than 90 days as usual, since the retention policy is automated.
   • CPlace a litigation hold on the relevant mailboxes to prevent deletion of any emails, including those older than 90 days.
   • DExtend the retention policy to 1 year for all mailboxes.
   Reveal Solution Discussion Select an answer first
5. 29expert · hard

   A hospital's electronic health record (EHR) system must be recoverable within 2 hours of a disaster. The system has a 2 TB database that changes moderately during the day. The hospital has a backup data center with a 500 Mbps link. The current strategy is a nightly full backup to local disk and a weekly copy to the remote data center. The RTO is not being met. Which strategy would best meet the RTO while maintaining an offsite copy?

   • AUse continuous backup to cloud storage with a 1-hour recovery point objective.
   • BSwitch to differential backups and copy them to the remote site daily.
   • CPerform a full backup to the remote data center every night over the 500 Mbps link.
   • DUse asynchronous replication to the remote data center and keep local backups for point-in-time recovery.
   Reveal Solution Discussion Select an answer first
6. 30application · medium

   A company performs full backups every night to a local NAS and replicates them to a cloud storage bucket. The backup software reports 'success' for every job. During a disaster recovery exercise, the team discovers that the cloud bucket contains only the first 2 GB of each 10 GB backup file. What is the most likely cause and the best corrective action?

   • AThe cloud provider is throttling uploads; switch to a different cloud provider.
   • BThe NAS is running out of space; replace the NAS with a larger model.
   • CThe backup software is not verifying the integrity of the replicated files; enable checksum verification and test restores from the cloud.
   • DThe backup job is set to 'incremental' instead of 'full'; change the job type to full.
   Reveal Solution Discussion Select an answer first