E20-005 Backup Recovery Systems & Architecture Exam Set 1

Why is a backup required?


Options are :

  • Restore the original data in the event of data loss
  • Prevent data corruption
  • Prevent unauthorized access of data
  • Allow multiple, simultaneous access of data

Answer : Allow multiple, simultaneous access of data

E20-005 Backup Recovery Systems & Architecture Exam Set 2

What is backed up in a cumulative backup?


Options are :

  • All changes since the last full backup
  • All data on the target volumes
  • Changes made to files in the last 24 hours
  • Changes since the last backup of any kind

Answer : All changes since the last full backup

A NetWorker customer has an environment with servers from multiple vendors. The customer requires a solution that will allow recovery of a full server to different hardware in the event of failure. What can be added to the backup environment?


Options are :

  • Data Protection Advisor
  • Deduplication node
  • HomeBase
  • PowerSnap

Answer : HomeBase

A Copy on First Write (CoFW) replica has been used to create a point-in-time snapshot of a volume.Where are changed blocks written?


Options are :

  • Snapshot block map
  • Snapshot bitmap
  • Replica volume
  • Production volume

Answer : Production volume

E20-005 Backup Recovery Systems & Architecture Exam Set 3

What method will ensure database consistency?


Options are :

  • Put database in standby
  • Capture online replica
  • Take database offline
  • .Resynchronize with logs

Answer : Take database offline

Which RAID level is best described as "parallel access with dedicated parity"?


Options are :

  • 4
  • 6
  • 5
  • 3

Answer : 3

Which backup strategy frees up the production server resources from performing backups?


Options are :

  • Remote backup
  • Copy, then clone
  • .Back up, then clone
  • Snapshot, then copy

Answer : Snapshot, then copy

E20-005 Backup Recovery Systems & Architecture Exam Set 4

What is the purpose of a disaster recovery backup?


Options are :

  • Individual file recovery
  • Complete system and file system recovery
  • Keep data for extended periods of time
  • Provide copies of data to others

Answer : Keep data for extended periods of time

Which FC port type would only be used to connect an FC switch to another switch?


Options are :

  • N_Port
  • E_Port
  • NL_Port
  • F_Port

Answer : E_Port

A company backs up a file system daily at 7 P.M. with full backups on Sundays and incremental backups on all other days.How many backups are used to restore the complete file system on Friday at noon?


Options are :

  • 5
  • 2
  • 6
  • 1

Answer : 5

E20-005 Backup Recovery Systems & Architecture Exam Set 5

Which FC port type is used by both a storage array port or a host's HBA to connect to a Fibre Channel switch?


Options are :

  • E_Port
  • N_Port
  • F_Port
  • G_Port

Answer : N_Port

Which logical component of connectivity is used for interaction between the host and a storage device?


Options are :

  • Bus
  • NIC
  • Protocol
  • HBA

Answer : Protocol

Which term refers to grouping several physical drives into one logical drive?


Options are :

  • Concatenation
  • Grouping
  • Partitioning
  • Formatting

Answer : Concatenation

E20-005 Backup Recovery Systems & Architecture Exam Set 6

What is a result of using CDP?


Options are :

  • Minimal RPO
  • Increased RTO
  • Limited recovery points
  • Increased backup windows

Answer : Minimal RPO

What is a function of a backup client?


Options are :

  • Receives backup metadata from the server
  • Writes the dataset to the backup device
  • Provides data for backup
  • Maintains the backup catalog

Answer : Provides data for backup

In a cross-product environment where Avamar is integrated with NetWorker, in which component are the backups and restores managed?


Options are :

  • NetWorker server
  • NetWorker storage node
  • Avamar deduplication node
  • Avamar server

Answer : NetWorker server

E20-005 Backup Recovery Systems & Architecture Exam Set 7

Which component in a client/server backup architecture reads data from the device during recoveries and cloning/staging?


Options are :

  • Storage node
  • Backup client
  • Backup server
  • Application server

Answer : Storage node

Which RAID level is defined as "striped array with independent disks and distributed parity"?


Options are :

  • RAID 1
  • RAID 5
  • RAID 1+0
  • RAID 0

Answer : RAID 5

What is a benefit of using EMC NetWorker modules?


Options are :

  • Ensures consistent backups
  • .Improves tape utilization ratio
  • Organizes data on the backup media for fast recovery
  • Performs cold database backups

Answer : .Improves tape utilization ratio

What methods will ensure file system consistency?


Options are :

  • Online file system backup Clear RAID cache
  • Off-line file system backup Flush host buffers
  • Replay file system I/O logs Clear RAID cache
  • Online file system backup Resynchronize with logs

Answer : Off-line file system backup Flush host buffers

Which process moves data from one device to another?


Options are :

  • Cloning
  • Backup
  • Staging
  • Replication

Answer : Staging

What describes Recovery Point Objective?


Options are :

  • Length of time that a backup must remain on disk
  • Amount of data loss that a business can endure
  • Amount of time that is allowed to recover from an outage
  • Amount of downtime that a business can survive

Answer : Amount of data loss that a business can endure

A customer is not meeting their current SLA on backups because of a bottleneck on their LAN and cannot expand the bandwidth on their LAN to relieve this bottleneck. How does Avamar help the customer solve this problem?


Options are :

  • By transferring all subfile data objects
  • By transferring only unique subfile data objects
  • By prefetching the file data at the client
  • By caching the file data at the client

Answer : By transferring only unique subfile data objects

What is a characteristic of metadata in a file system?


Options are :

  • .It is a transaction log of all the changes to a file system.
  • .It must be consistent in order to be considered healthy.
  • It is always healthy because journal file systems cannot be corrupted.
  • It contains information in XDR format about the users' files.

Answer : .It must be consistent in order to be considered healthy.

What is required to enable communication between an operating system and an attached device?


Options are :

  • Firmware
  • Driver
  • Volume Manager
  • SCSI command

Answer : Driver

What describes Recovery Time Objective?


Options are :

  • Amount of data loss that a business can endure
  • Amount of downtime that a business can endure and survive
  • Point in time to which data must be recovered
  • Length of time that a backup must remain on disk

Answer : Amount of downtime that a business can endure and survive

Which product automatically creates and stores server configuration information in profiles?


Options are :

  • Workbench
  • NetWorker
  • HomeBase
  • Data Protection Advisor

Answer : HomeBase

What is a type of host-based replication?


Options are :

  • Full volume mirroring
  • Pointer-based virtual replication
  • Pointer-based full volume replication
  • File system snapshot

Answer : File system snapshot

What is a characteristic of EMC NetWorker deduplication with Avamar?


Options are :

  • Uses target-based deduplication
  • Identifies and stores only unique, variable-sized, subfile data objects
  • Uses file-based deduplication
  • Identifies and stores only unique, fixed-sized, metafile data objects

Answer : Identifies and stores only unique, variable-sized, subfile data objects

Which backup strategy avoids the impact on the production application during backup?


Options are :

  • Mirror then copy
  • Remote backup
  • Back up then clone
  • Copy then clone

Answer : Mirror then copy

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