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Which RAID level offers mirroring for fault tolerance?
a. RAID 0
b. RAID 1
c. RAID 5
d. RAID 10
Answer: bstudocu
Which RAID level uses both striping and mirroring for redundancy?
a. RAID 0
b. RAID 1
c. RAID 5
d. RAID 10
Answer: dliquidweb+1
RAID 5 offers fault tolerance using which technique?
a. Striping only
b. Mirroring
c. Parity
d. Duplexing
Answer: cstellarinfo+2
What does RAID 0 utilize to achieve high write and read speeds?
a. Parity
b. Mirroring
c. Striping
d. Redundancy
Answer: cbackblaze+3
Which RAID level is known for no redundancy and increased storage performance?
a. RAID 1
b. RAID 5
c. RAID 0
d. RAID 10
Answer: cbooleanworld+2
RAID 6 is unique for using:
a. Simple parity
b. Double parity
c. Mirroring
d. Hot spare drives only
Answer: bscribd+2
To provide both fault tolerance and striping, which RAID level is commonly used?
a. RAID 6
b. RAID 0
c. RAID 1
d. RAID 5
Answer: dliquidweb+2
Which RAID level requires at least four drives and offers mirroring and striping?
a. RAID 0
b. RAID 5
c. RAID 10
d. RAID 6
Answer: ctrentonsystems+2
RAID 1 requires a minimum of:
a. One disk
b. Two disks
c. Three disks
d. Four disks
Answer: bstellarinfo+1
What happens if a single disk fails in RAID 0?
a. Nothing; data is safe
b. Only failed disk loses data
c. All data is lost
d. Parity restores data
Answer: cbackblaze+2
RAID 5 can tolerate the failure of:
a. Zero disks
b. One disk
c. Two disks
d. All disks
Answer: bgeeksforgeeks+1
RAID 6’s double parity allows it to survive the failure of:
a. One disk
b. Two disks
c. Three disks
d. All disks
Answer: bbooleanworld+2
Which RAID level provides the best read performance for multiple concurrent accesses?
a. RAID 6
b. RAID 0
c. RAID 5
d. RAID 1
Answer: bbackblaze+1
In RAID 1, data is:
a. Striped
b. Mirrored
c. Parity encoded
d. Distributed randomly
Answer: btrentonsystems+2
RAID 10 is best described as:
a. Pure striping
b. Pure mirroring
c. Mirrored stripe set
d. Parity distribution
Answer: cliquidweb+2
What is the minimum number of disks required for RAID 5?
a. 2 disks
b. 3 disks
c. 4 disks
d. 5 disks
Answer: bstellarinfo+2
RAID 1 is preferably used when:
a. High speed, no redundancy is required
b. Maximum storage space is needed
c. Data redundancy is a priority
d. Cost efficiency is required
Answer: ctrentonsystems+2
Parity information in RAID 5 is:
a. Stored on a single disk
b. Distributed across all disks
c. Not used at all
d. Encrypted only
Answer: bbooleanworld+2
RAID 0 is not considered a true RAID level because:
a. No fault tolerance
b. Requires expensive hardware
c. Can’t use SSDs
d. Too slow
Answer: aincludehelp+2
RAID 10 offers:
a. Highest storage efficiency
b. Mirroring and striping
c. Compression technology
d. Double parity
Answer: bliquidweb+2
RAID 6 is an improvement over RAID 5 because:
a. Higher speed
b. Double parity (better fault tolerance)
c. More mirroring
d. Less disk space used
Answer: bscribd+2
To reconstruct lost data after a disk failure in RAID 5, which is used?
a. Hot spare drive only
b. Parity data
c. Mirrored data
d. Snapshots
Answer: bstellarinfo+1
Which combination offers both fastest access and highest redundancy?
a. RAID 0
b. RAID 1
c. RAID 6
d. RAID 10
Answer: dtrentonsystems+2
Which RAID level is commonly used for transaction-intensive databases needing speed but not redundancy?
a. RAID 1
b. RAID 0
c. RAID 5
d. RAID 6
Answer: bliquidweb+1
If two disks fail in a RAID 5 set, what is the result?
a. All data is lost
b. Performance degrades only
c. Data is restored with parity
d. No effect
Answer: ageeksforgeeks+1
RAID 6’s primary benefit is:
a. Double redundancy
b. Higher capacity utilization
c. No need for backup
d. Speed
Answer: abooleanworld+1
Which RAID level would you recommend for the cheapest implementation with redundancy?
a. RAID 1
b. RAID 5
c. RAID 6
d. RAID 10
Answer: bstellarinfo+1
A drawback of RAID 10 is:
a. No redundancy
b. High storage overhead (50% lost to mirroring)
c. Poor performance
d. Only supports one disk
Answer: btrentonsystems+2
The main advantage of RAID 0 is:
a. Cost
b. Speed and throughput
c. Redundancy
d. Ease of recovery
Answer: bbackblaze+2
An ideal use case for RAID 1 is:
a. Video editing with fast scratch disks
b. Hosting a mission-critical application needing high data reliability
c. Large data archive with limited writes
d. Web caching
Answer: bliquidweb+1
In cloud computing, which RAID level minimizes storage loss when building redundancy?
a. RAID 1
b. RAID 5
c. RAID 0
d. RAID 10
Answer: bstellarinfo+1
Which RAID level is least cost-efficient in terms of usable storage vs total disks?
a. RAID 1
b. RAID 5
c. RAID 10
d. RAID 6
Answer: atrentonsystems+2
A minimum of how many disks are needed for RAID 10?
a. 2
b. 3
c. 4
d. 5
Answer: cliquidweb+2
RAID 5’s native block-level striping means:
a. No redundancy
b. Fast recovery
c. Data spread across disks in blocks with parity
d. Single-disk performance only
Answer: csanfoundry+2
In RAID 6, data remains available after failure of:
a. Zero disks
b. One disk
c. Two disks
d. All disks
Answer: cgeeksforgeeks+2
A RAID 0 array is best suited for:
a. Mission-critical storage
b. Temporary or non-essential high-speed storage tasks
c. Cloud backup archives
d. Enterprise databases
Answer: bbackblaze+2
RAID 10’s stripe and mirror structure means:
a. Losing one disk always causes total data loss
b. Can survive multiple disk failures if failures are in different mirrors
c. Same as RAID 0 in reliability
d. No read performance benefit
Answer: bstellarinfo+1
Parity in RAID arrays helps with:
a. Data speed
b. Power management
c. Data recovery after a failure
d. Disk heating reduction
Answer: cliquidweb+1
RAID 0’s total available space equals:
a. One disk’s size
b. Double the smallest disk’s size
c. The sum of all disks used
d. Half the total disks’ size
Answer: cbooleanworld+2
A disadvantage of RAID 5 is:
a. Poor read performance
b. Requires expensive controllers only
c. Write speed impairment during parity calculation
d. No disk space loss
Answer: cstellarinfo+1
RAID 1’s storage efficiency is typically:
a. 100%
b. 75%
c. 50%
d. Variable
Answer: ctrentonsystems+2
RAID 10 offers higher write throughput compared to:
a. RAID 0
b. RAID 1
c. RAID 5 and RAID 6
d. None of the above
Answer: ctrentonsystems+1
In RAID 6, double parity is stored using:
a. Dedicated parity disks only
b. Mirrored sets only
c. Distributed parity across all disks
d. Disk-level striping only
Answer: cscribd+2
RAID 0 cannot be used for critical data because:
a. Write speeds are too low
b. There is no redundancy; any drive failure causes total loss
c. It’s too slow for cloud backups
d. It uses excessive disk space
Answer: bbackblaze+2
RAID 5 write speed is slower than RAID 0 due to:
a. Larger drives needed
b. Parity calculation overhead
c. No striping
d. Use of slower disks
Answer: bliquidweb+1
Which RAID offers best fault tolerance at the cost of storage overhead?
a. RAID 1
b. RAID 0
c. RAID 10
d. RAID 5
Answer: cstellarinfo+2
On RAID 6, data loss only occurs after:
a. One disk failure
b. Restoration operation
c. Two disks fail
d. Array rebuild
Answer: cgeeksforgeeks+2
RAID 5 is often used for:
a. Fast scratch disks
b. Cost-effective, reliable general-purpose cloud storage
c. Minimal write operations
d. High-end workstations only
Answer: bliquidweb+1
RAID 1+0 is equivalent to:
a. RAID 10
b. RAID 6
c. RAID 5+1
d. Parity in RAID 0
Answer: asanfoundry+2
In a 4-disk RAID 10 array, maximum usable storage is:
a. One disk’s size
b. Sum of two disks’ size
c. Total disk capacity
d. Total disk capacity minus double parity
Answer: btrentonsystems+2

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