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. Which Dell EMC product is designed for high-end enterprise storage?
PowerMax
Unity
PowerStore
Isilon
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✅ Correct Answer: PowerMax
22. What is the primary advantage of asynchronous replication?
Lower bandwidth requirements
Zero RPO
No latency impact
Eliminates backups
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✅ Correct Answer: Lower bandwidth requirements
23. Which technology reduces storage capacity by eliminating redundant data?
Deduplication
RAID 5
Thin provisioning
Multipathing
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✅ Correct Answer: Deduplication
24. What is the purpose of a write cache in storage systems?
Improve write performance
Replace primary storage
Slow down reads
Act as backup storage
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✅ Correct Answer: Improve write performance
25. Which RAID level provides fault tolerance with single parity?
RAID 5
RAID 0
RAID 1
RAID 10
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✅ Correct Answer: RAID 5
26. What is the main benefit of NVMe over traditional SSDs?
Lower latency
Higher capacity
Lower cost
Simpler cabling
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✅ Correct Answer: Lower latency
27. Which Dell EMC solution is optimized for backup and recovery?
Avamar
PowerStore
XtremIO
Isilon
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✅ Correct Answer: Avamar
28. What does NAS stand for?
Network Attached Storage
Network Access System
Nearline Archive Storage
Non-Volatile Array Storage
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✅ Correct Answer: Network Attached Storage
29. Which feature ensures data consistency during replication?
Write-order consistency
Thin provisioning
Compression
Deduplication
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✅ Correct Answer: Write-order consistency
30. What is the primary function of a storage volume?
Logical container for data
Physical disk identifier
Network bandwidth limiter
Cooling system controller
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✅ Correct Answer: Logical container for data
31. Which protocol is commonly used for file sharing in Windows environments?
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✅ Correct Answer: SMB
32. What is the benefit of scale-out storage architecture?
Linear performance growth
Higher cost per TB
Vendor lock-in
Limited scalability
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✅ Correct Answer: Linear performance growth
33. Which Dell EMC solution provides continuous data protection?
RecoverPoint
Data Domain
PowerStore
Isilon
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✅ Correct Answer: RecoverPoint
34. What is the primary use case for Data Domain?
Backup storage with deduplication
High-performance databases
VMware virtualization
Edge computing
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✅ Correct Answer: Backup storage with deduplication
35. Which component connects hosts to a Fibre Channel SAN?
HBA (Host Bus Adapter)
NIC
RAID controller
SSD
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✅ Correct Answer: HBA (Host Bus Adapter)
36. What is the purpose of storage compression?
Reduce storage consumption
Improve deduplication
Replace RAID
Eliminate backups
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✅ Correct Answer: Reduce storage consumption
37. Which Dell EMC platform offers all-flash block storage?
XtremIO
Isilon
Data Domain
ECS
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✅ Correct Answer: XtremIO
38. What is the advantage of dynamic tiering?
Automated data movement between tiers
Manual data placement
Eliminates storage tiers
Reduces performance
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✅ Correct Answer: Automated data movement between tiers
39. Which feature protects against accidental data deletion?
Snapshot retention policies
Thin provisioning
Deduplication
Compression
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✅ Correct Answer: Snapshot retention policies
40. What is the primary benefit of cloud-tiering?
Cost-effective long-term storage
Improved performance
Replaces primary storage
Eliminates backups
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✅ Correct Answer: Cost-effective long-term storage
41. Which Dell EMC product provides enterprise object storage?
ECS
PowerStore
Unity
Data Domain
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✅ Correct Answer: ECS
42. What is the primary advantage of RDMA in storage networks?
Reduced CPU overhead
Higher capacity
Lower cost
Simpler management
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✅ Correct Answer: Reduced CPU overhead
43. Which technology enables storage virtualization?
VPLEX
Data Domain
Avamar
RecoverPoint
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✅ Correct Answer: VPLEX
44. What is the purpose of LUN masking?
Restrict host access to specific LUNs
Improve performance
Reduce costs
Simplify backups
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✅ Correct Answer: Restrict host access to specific LUNs
45. Which protocol is used for object storage access?
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✅ Correct Answer: S3
46. What is the advantage of inline deduplication?
Reduces storage before writing
Slows down writes
Requires more CPU
Needs separate appliance
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✅ Correct Answer: Reduces storage before writing
47. Which Dell EMC solution provides metro clustering?
VPLEX
PowerStore
Isilon
Data Domain
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✅ Correct Answer: VPLEX
48. What is the purpose of storage QoS?
Prioritize critical workloads
Encrypt data
Compress files
Deduplicate blocks
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✅ Correct Answer: Prioritize critical workloads
49. Which technology provides the lowest latency for storage access?
Storage Class Memory
NVMe SSDs
SAS SSDs
SATA SSDs
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✅ Correct Answer: Storage Class Memory
50. What is the benefit of parallel file systems?
Scalable performance
Better security
Lower cost
Simpler management
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✅ Correct Answer: Scalable performance
51. Which Dell EMC feature optimizes flash performance?
Dynamic Virtual Pooling
Fast VP
Cloud Tiering
Data Domain Boost
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✅ Correct Answer: Dynamic Virtual Pooling
52. What is the purpose of storage profiling?
Understand workload patterns
Secure data
Reduce costs
Manage backups
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✅ Correct Answer: Understand workload patterns
53. Which metric is most important for transaction processing systems?
IOPS
Throughput
Capacity
Latency
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✅ Correct Answer: IOPS
54. What is the benefit of storage auto-tiering?
Optimizes cost and performance
Improves security
Simplifies management
Enables deduplication
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✅ Correct Answer: Optimizes cost and performance
55. Which Dell EMC product uses machine learning for performance optimization?
PowerMax with AI
Unity
Isilon
ECS
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✅ Correct Answer: PowerMax with AI
56. What is the advantage of parallel I/O in storage systems?
Increased throughput
Better security
Lower cost
Simpler management
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✅ Correct Answer: Increased throughput
57. Which caching algorithm typically provides the best hit ratio?
Adaptive Replacement Cache (ARC)
FIFO
LIFO
Random
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✅ Correct Answer: Adaptive Replacement Cache (ARC)
58. What is the purpose of workload analysis?
Right-size storage resources
Secure data
Reduce costs
Manage backups
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✅ Correct Answer: Right-size storage resources
59. Which technology helps predict storage performance needs?
Predictive analytics
Deduplication
Compression
Tiering
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✅ Correct Answer: Predictive analytics
60. What is the primary limitation of storage caching?
Cache size
Security
Cost
Compatibility
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✅ Correct Answer: Cache size