#1
Which data backup method creates a duplicate copy of all selected data?
Full backup
ExplanationCreates a complete replica of all chosen data for comprehensive backup.
#2
What is the purpose of a disaster recovery plan?
To provide a systematic approach for responding to potential disasters
ExplanationEstablishes an organized strategy for addressing potential disasters and minimizing data loss.
#3
Which factor is crucial for determining the backup frequency?
The criticality of the data
ExplanationThe importance of data determines how frequently backups should be performed.
#4
What is the main advantage of using cloud-based backup solutions?
Lower upfront costs
ExplanationReduces initial investment costs compared to traditional backup infrastructure.
#5
What is the purpose of a 'hot site' in disaster recovery planning?
To have a fully operational backup facility ready at all times
ExplanationMaintains a continuously operational backup facility for rapid recovery in case of a disaster.
#6
What is the primary purpose of a data recovery point?
To provide a point-in-time recovery option
ExplanationEstablishes a specific time reference for recovering data to a previous state.
#7
Which RAID level provides both data striping and mirroring?
RAID 10
ExplanationCombines disk striping and mirroring for improved performance and fault tolerance.
#8
Which data backup method only copies the data that has changed since the last backup?
Incremental backup
ExplanationBacks up only the modified data since the last backup, reducing time and storage requirements.
#9
What is the primary purpose of a backup rotation scheme?
To rotate the type of backup used
ExplanationCycles through different backup types to ensure comprehensive coverage and data retention.
#10
What is the purpose of versioning in backup and recovery?
To manage multiple versions of the same file over time
ExplanationFacilitates tracking and restoration of different versions of files over time.
#11
What is the purpose of a differential backup?
To back up only the data that has changed since the last full backup
ExplanationSaves only the altered data since the last full backup to optimize storage usage.
#12
What is the role of a cold backup in data recovery?
It is a backup taken when the system is shut down
ExplanationTaken while the system is offline or shut down to ensure a consistent state.
#13
Which storage medium is commonly used for long-term archival of backup data?
Magnetic tape
ExplanationFrequently employed for archiving backups over the long term due to durability and cost-effectiveness.
#14
What is the purpose of offsite backup storage?
To store backups in a different geographic location
ExplanationPreserves backups in a separate geographic location to mitigate risks associated with local disasters.
#15
Which backup method is known for its efficiency in terms of storage space utilization?
Incremental backup
ExplanationEfficiently utilizes storage by capturing only the changes since the last backup.