1. Which Dell EMC platform provides midrange unified storage?
PowerStore
PowerMax
Isilon
Data Domain
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✅ Correct Answer: PowerStore
2. What is the primary benefit of synchronous replication?
Zero data loss recovery
Low bandwidth usage
No storage overhead
Eliminates backups
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✅ Correct Answer: Zero data loss recovery
3. Which technology reduces storage needs through pattern matching?
Deduplication
Compression
Thin provisioning
RAID striping
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✅ Correct Answer: Deduplication
4. What is the purpose of a storage cache?
Improving performance with frequently accessed data
Permanent storage
Replacing primary storage
Slowing writes
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✅ Correct Answer: Improving performance with frequently accessed data
5. Which RAID level provides the best read performance?
RAID 0
RAID 1
RAID 5
RAID 6
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✅ Correct Answer: RAID 0
6. What is the advantage of NVMe-oF?
Extending NVMe over networks
Replacing HDDs
Managing tapes
Controlling cooling
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✅ Correct Answer: Extending NVMe over networks
7. Which Dell EMC product specializes in unstructured data?
Isilon
PowerMax
Unity
Data Domain
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✅ Correct Answer: Isilon
8. What does SAN stand for?
Storage Area Network
System Access Node
Secure Archive Network
Serial Attached Network
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✅ Correct Answer: Storage Area Network
9. Which feature ensures continuous availability?
High availability clustering
Single-controller
Manual failover
Cold storage
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✅ Correct Answer: High availability clustering
10. What is the primary function of a LUN?
Logical storage presentation to hosts
Physical disk ID
Network limiter
Cooling controller
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✅ Correct Answer: Logical storage presentation to hosts
11. Which protocol is used for storage management?
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✅ Correct Answer: SNMP
12. What is the benefit of software-defined storage?
Hardware independence
Higher cost
Vendor lock-in
Lower flexibility
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✅ Correct Answer: Hardware independence
13. Which Dell EMC solution provides backup deduplication?
Data Domain
PowerStore
XtremIO
VPLEX
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✅ Correct Answer: Data Domain
14. What is the primary use of object storage?
Unstructured data archives
Database transactions
VM boot volumes
In-memory caching
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✅ Correct Answer: Unstructured data archives
15. Which component manages data flow in storage systems?
Storage controller
Network switch
CPU
Power supply
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✅ Correct Answer: Storage controller
16. What is the purpose of storage tiering?
Cost optimization by data placement
Eliminating backups
Reducing latency
Removing RAID
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✅ Correct Answer: Cost optimization by data placement
17. Which Dell EMC platform offers high-performance block storage?
XtremIO
Isilon
Data Domain
Avamar
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✅ Correct Answer: XtremIO
18. What is the advantage of thin provisioning?
Optimized storage utilization
Increased disk speed
RAID replacement
Encryption disable
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✅ Correct Answer: Optimized storage utilization
19. Which feature protects against ransomware?
Immutable snapshots
Thin provisioning
Deduplication
Compression
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✅ Correct Answer: Immutable snapshots
20. What is the primary benefit of hyper-converged infrastructure?
Integrated compute and storage
Separate management
Higher latency
Lower scalability
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✅ Correct Answer: Integrated compute and storage
21. What is the primary advantage of PowerStore's AppsON capability?
Run VMs directly on storage hardware
Replace hypervisors
Eliminate networking
Disable RAID
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✅ Correct Answer: Run VMs directly on storage hardware
22. Which technology enables storage scaling without downtime?
Scale-out architecture
RAID 0
Tape libraries
Single-controller systems
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✅ Correct Answer: Scale-out architecture
23. What is the purpose of persistent memory in storage systems?
Near-DRAM speed with non-volatility
Replace HDDs entirely
Lower cost than SSDs
Eliminate backups
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✅ Correct Answer: Near-DRAM speed with non-volatility
24. Which Dell EMC feature provides predictive analytics?
CloudIQ
PowerPath
Unisphere
SRM
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✅ Correct Answer: CloudIQ
25. What is the benefit of end-to-end NVMe in storage arrays?
Eliminate protocol translation latency
Higher capacity than HDDs
Lower cost than SATA
No need for networks
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✅ Correct Answer: Eliminate protocol translation latency
26. Which protocol encapsulates Fibre Channel over Ethernet?
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✅ Correct Answer: FCoE
27. What is the primary security risk mitigated by storage encryption?
Data breaches from physical theft
Hardware failures
Network latency
Power outages
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✅ Correct Answer: Data breaches from physical theft
28. Which component ensures non-disruptive upgrades?
Active-active controllers
Single power supply
Manual failover
Unencrypted data paths
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✅ Correct Answer: Active-active controllers
29. What is the role of PowerPath in storage environments?
Multipathing and load balancing
Data deduplication
Storage tiering
Backup scheduling
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✅ Correct Answer: Multipathing and load balancing
30. Which Dell EMC technology enables non-disruptive data migration?
VPLEX Metro
Data Domain
Isilon
Avamar
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✅ Correct Answer: VPLEX Metro
31. What is the benefit of a scale-out NAS architecture?
Linear performance and capacity growth
Lower cost than object storage
No need for networks
Replaces all flash arrays
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✅ Correct Answer: Linear performance and capacity growth
32. Which metric is most important for backup storage?
Deduplication ratio
IOPS
Network latency
Power consumption
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✅ Correct Answer: Deduplication ratio
33. What is the purpose of storage QoS policies?
Guarantee performance for critical apps
Reduce total capacity
Eliminate redundancy
Disable encryption
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✅ Correct Answer: Guarantee performance for critical apps
34. Which Dell EMC product is optimized for DevOps workflows?
PowerFlex
Unity
PowerMax
Data Domain
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✅ Correct Answer: PowerFlex
35. What is the advantage of cloud-tiering for cold data?
Cost-effective long-term retention
Better performance than flash
Replaces primary storage
Eliminates local storage
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✅ Correct Answer: Cost-effective long-term retention
36. Which component is critical for high-availability storage?
Redundant power and cooling
Single disk systems
Manual failover
Unencrypted data
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✅ Correct Answer: Redundant power and cooling
37. What is the primary use case for Dell EMC ECS (Elastic Cloud Storage)?
Massive-scale object storage
High-frequency trading
VMware boot volumes
In-memory databases
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✅ Correct Answer: Massive-scale object storage
38. Which technology reduces storage costs for inactive data?
Automated tiering to object storage
All-flash arrays
In-memory caching
RAID 10
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✅ Correct Answer: Automated tiering to object storage
39. What is the benefit of PowerStore's AppsON feature?
Run VMs directly on the array
Eliminate networking
Replace all backups
Disable encryption
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✅ Correct Answer: Run VMs directly on the array
40. Which protocol is used for high-performance SANs?
Fibre Channel
HTTP
FTP
SMTP
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✅ Correct Answer: Fibre Channel
41. What is the primary advantage of asynchronous replication?
Lower impact on production performance
Guaranteed zero data loss
No network bandwidth usage
Eliminates need for snapshots
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✅ Correct Answer: Lower impact on production performance
42. Which Dell EMC solution specializes in backup and recovery appliances?
Data Domain
PowerStore
XtremIO
VPLEX
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✅ Correct Answer: Data Domain
43. What is the purpose of thin provisioning?
Optimizing storage utilization
Increasing physical disk speed
Replacing RAID configurations
Eliminating backups
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✅ Correct Answer: Optimizing storage utilization
44. Which protocol is used for block storage over Ethernet networks?
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✅ Correct Answer: iSCSI
45. What is the key advantage of NVMe-oF (NVMe over Fabrics)?
Extends NVMe benefits across networks
Reduces storage capacity needs
Eliminates need for SSDs
Lowers cost compared to HDDs
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✅ Correct Answer: Extends NVMe benefits across networks
46. Which feature helps maintain data availability during hardware failures?
Multipathing
Data compression
Thin provisioning
Deduplication
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✅ Correct Answer: Multipathing
47. What is the primary use case for Dell EMC PowerScale (Isilon)?
Unstructured data storage
High-frequency trading databases
Virtual machine boot volumes
In-memory caching
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✅ Correct Answer: Unstructured data storage
48. Which technology provides space-efficient snapshots?
Copy-on-write
Full clones
RAID 5
Tape backups
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✅ Correct Answer: Copy-on-write
49. What is the benefit of storage tiering?
Cost optimization by aligning data with performance needs
Eliminating all flash storage
Reducing network bandwidth
Removing backup requirements
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✅ Correct Answer: Cost optimization by aligning data with performance needs
50. Which Dell EMC software provides centralized storage management?
Unisphere
CloudIQ
PowerPath
SRM
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✅ Correct Answer: Unisphere
51. What is the purpose of a storage SLA?
Define performance and availability guarantees
Limit storage expansion
Disable redundancy features
Reduce security protocols
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✅ Correct Answer: Define performance and availability guarantees
52. Which RAID level provides fault tolerance with distributed parity?
RAID 5
RAID 0
RAID 1
RAID 10
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✅ Correct Answer: RAID 5
53. What is the primary advantage of all-flash arrays?
Consistent low latency and high IOPS
Lower cost per TB than HDDs
Better for long-term archival
No need for data protection
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✅ Correct Answer: Consistent low latency and high IOPS
54. Which component ensures non-disruptive operations in high-end storage?
Active-active controllers
Single power supply
Manual failover
Unencrypted data paths
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✅ Correct Answer: Active-active controllers
55. What is the role of a volume manager?
Abstract physical disks into logical volumes
Replace RAID controllers
Manage network switches
Cool storage hardware
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✅ Correct Answer: Abstract physical disks into logical volumes
56. Which Dell EMC product offers midrange unified storage?
Unity
PowerMax
XtremIO
Isilon
Show Answer
✅ Correct Answer: Unity
57. What is the benefit of compression in storage systems?
Reduces physical storage consumption
Increases disk latency
Eliminates need for backups
Replaces RAID functionality
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✅ Correct Answer: Reduces physical storage consumption
58. Which protocol encapsulates Fibre Channel over Ethernet?
Show Answer
✅ Correct Answer: FCoE
59. What is the primary security risk mitigated by storage encryption?
Data breaches from physical theft
Hardware failures
Network latency
Power outages
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✅ Correct Answer: Data breaches from physical theft
60. Which technology enables storage scalability without downtime?
Scale-out architecture
RAID 0
Tape libraries
Single-controller systems
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✅ Correct Answer: Scale-out architecture
61. What is the purpose of a quorum in distributed storage?
Maintain consistency during failures
Increase disk capacity
Reduce network speed
Disable redundancy
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✅ Correct Answer: Maintain consistency during failures
62. Which Dell EMC feature provides application-aware data protection?
AppSync
PowerPath
Unisphere
CloudIQ
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✅ Correct Answer: AppSync
63. What is the advantage of persistent memory in storage systems?
Near-DRAM speed with non-volatility
Lower cost than HDDs
Replaces all flash storage
Eliminates need for networks
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✅ Correct Answer: Near-DRAM speed with non-volatility
64. Which metric is most critical for latency-sensitive applications?
IOPS at low queue depths
Total storage capacity
Compression ratios
Deduplication savings
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✅ Correct Answer: IOPS at low queue depths