#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
In the context of backup, what does the term 'RTO' stand for?
Recovery Time Objective
ExplanationSpecifies the targeted duration for recovering systems and data after an incident.
#12
What is the role of a 'backup administrator' in the context of data backup?
Someone who manages and oversees the backup process
ExplanationResponsible for overseeing and managing the entire backup process.
#13
Which encryption technique is commonly used to secure backup data?
Symmetric encryption
ExplanationUtilizes a single encryption key for both encryption and decryption of backup data.
#14
What is the significance of the 'Grandfather-Father-Son' backup rotation scheme?
It designates different backup types for daily, weekly, and monthly backups
ExplanationAssigns specific backup types to different time intervals, ensuring a varied and comprehensive backup strategy.
#15
Which factor is crucial for determining the recovery point objective (RPO)?
The maximum tolerable data loss
ExplanationDefines the maximum acceptable amount of data loss in case of a disaster.
#16
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.
#17
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.
#18
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.
#19
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.
#20
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.
#21
What is the purpose of a synthetic backup?
To combine incremental backups into a full backup image
ExplanationCombines incremental backups to create a comprehensive full backup image.
#22
What is the purpose of a 'backup schedule'?
To determine when and how often backups will be performed
ExplanationDefines the timing and frequency of backup operations.
#23
In the context of data recovery, what does the term 'Bare Metal Restore' refer to?
Restoring an entire system on new or empty hardware
ExplanationRecovering a complete system onto new or empty hardware.
#24
What is the purpose of a 'tape library' in data backup?
To manage and automate the use of multiple tape drives and cartridges
ExplanationAutomates the handling of multiple tape drives and cartridges for efficient backup storage management.
#25
What is the role of a 'checksum' in data backup?
To verify the integrity of backup files
ExplanationVerifies the integrity of backup files by generating and comparing checksum values.