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EMC DES-1415 Exam Overview:
| Certification Vendor: | Dell Technologies |
| Exam Name: | Specialist - Technology Architect, PowerScale Solutions Exam |
| Exam Number: | DES-1415 |
| Related Certifications: | Dell EMC PowerScale Solution Design Certification (DCS-TA) |
| Real Exam Qty: | ~60 (approx.) |
| Available Languages: | English |
| Passing Score: | 60% |
| Exam Format: | Multiple Choice |
| Exam Duration: | 90 minutes |
| Recommended Training: | PowerScale Solution Design Training |
| Exam Registration: | Dell Technologies Certification Portal |
| Sample Questions: | EMC DES-1415 Sample Questions |
| Exam Way: | Proctored exam (online or test center depending on region) |
| Pre Condition: | No mandatory prerequisites, but recommended knowledge of PowerScale/Isilon OneFS architecture and storage design fundamentals. |
| Official Syllabus URL: | https://learning.dell.com/content/dell/en-us/home/certification-overview/available-exams.html |
EMC DES-1415 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| PowerScale Infrastructure | 25% | - Cluster architecture and node types
|
| Data Protection and Integration | - Data lifecycle and efficiency
| |
| PowerScale Management and Advanced Features | 49% | - System operations and monitoring
|
EMC Specialist - Technology Architect, PowerScale Solutions Sample Questions:
1. A potential customer requires 4 PB of usable capacity to store media files. The workloads are a combination of streaming video delivery and long term archive of video assets.
There is very little space available in the customer's datacenter, so physical density is very important. The customer is concerned about performance impact and potential data loss when using 3 TB or larger drives.
What Isilon capabilities can address the customer's concerns?
Response:
A) Isilon nodes have more drives per rack unit so fewer shelves are required.Proactive hot sparing eliminates most drive rebuilds.N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
B) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID rebuilds.Data recovery is consistent, taking the same amount of time regardless of cluster size.Isilon ,short strokes, 4TB drives to reduce rebuild time.
C) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID rebuilds.N+3 and N+4 Protection Levels exceed traditional RAID6 availability.Data redistribution runs faster with more nodes in the cluster.
D) N+3 and N+4 Protection Levels exceed traditional RAID6 availability.Proactive hot sparing eliminates most drive rebuilds.Endurant Cache reduces the overhead for write operations.
2. Which tool measures actual throughput and produces sophisticated graphs?
Response:
A) Perfmon
B) IOZone
C) WireShark
D) MiTrend
3. You are designing a backup solution using an NDMP redirector and throttler. What is the default threshold percentage of CPU resources that the throttler limits NDMP to?
Response:
A) 25
B) 50
C) 60
D) 45
4. For concurrent I/O, how do SmartCache and Endurant Cache differ?
Response:
A) SmartCache uses sub-file, granular locking whereas Endurant Cache locks the entire file
B) Endurant Cache sends an acknowledgement to the client immediately after mirroring writes in NVRAM
C) Endurant Cache waits for acknowledgement from all nodes before copying to L2 cache
D) SmartCache immediately commits the write to NVRAM on the local node and one peer node
5. A PowerScale administrator has a cluster containing four F600 nodes. They must configure FTP connections for anonymous access that requires no authentication. What is the result of this configuration?
Response:
A) The limit is 500 FTP connections per node.
B) The limit is 500 for FTP connections per cluster.
C) The limit is 200 FTP connections per cluster.
D) The limit is 200 for FTP connections per node.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: D |
By Juliet
