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EMC D-PSC-DS-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| PowerScale Architecture and Concepts | - OneFS architecture overview - Cluster components and node types - File system layout and data flow |
| Cluster Design and Planning | - Workload assessment and performance design - Sizing and capacity planning - Scalability considerations |
| Networking Design for PowerScale | - Client access and load balancing - Network topology design - SmartConnect configuration concepts |
| Security and Access Control | - Data encryption and security design - Role-based access control concepts - Authentication and authorization methods |
| Storage Management and Data Services | - Protocol support (NFS, SMB, HDFS) - SmartPools tiering and data placement - Data lifecycle management |
| Data Protection and Availability | - Erasure coding and replication strategies - Snapshot and snapshotIQ concepts - Failure domains and resilience design |
| Monitoring, Troubleshooting, and Optimization | - Performance monitoring tools - Cluster health diagnostics - Common design troubleshooting scenarios |
EMC Dell PowerScale Design 2023 Sample Questions:
The security team at a customer site has created a new requirement that in-flight replication traffic must be encrypted end-to-end. The customer is running OneFS 8.2.1 on their cluster.
What encryption protocol versions does SyncIQ support?
- A. x.509 13.37 and OpenSSL 0.9.8
- B. IPSec 2.1 and OpenSSL 1.0.2
- C. TLS 1.3 and OpenSSL 1.1.1
- D. TLS 1.2 and OpenSSL 1.0.2
Correct Answer: D 🗳️
A potential customer requires 800 TB of usable capacity to store medical images for their network of health clinics. The IT department has limited staff and currently manages four storage arrays from other vendors.
During a meeting with the Director of IT you learn that the company is considering a solution from a competitor of EMC using two of the existing arrays and two new arrays.
Which Isilon capabilities would show a better ROI for the customer?
- A. Isilon has 6%-12% less filesystem overhead than traditional clustered filesystem solutions.
With a single filesystem and virtual capacity for drive and node failures, Isilon utilization is typically 80% or higher.
Isilon utilization is typically 80% or higher due to use of a single filesystem and virtual capacity for drive and node failures. - B. Isilon has 15%-20% less overhead than traditional clustered filesystems.
According to an IDC study, Isilon utilization is nearly 50% higher than traditional competitors.
Isilon QOS headroom and multiple node pools ensures consistent performance up to 80% utilization. - C. Forward Error Correction overhead is 7% lower than traditional RAID.
Isilon has 6%-12% less filesystem overhead than traditional clustered filesystem solutions.
According to an IDC study, Isilon improves IT productivity by nearly 50% compared to traditional competitors. - D. With a single filesystem and virtual capacity for drive and node failures, Isilon utilization is typically
80% or higher.
OneFS compression results in higher effective capacity within the cluster.
Traditional clustered filesystems require 4%-10% internal overhead compared to Isilon virtual capacity.
Correct Answer: D 🗳️
There is a concern that there are not enough physical switch ports available for the Isilon cluster in a new implementation with SMB and ICAP requirements.
What course of action should be taken?
- A. The customer needs to provide more switch ports for the implementation
- B. Create a SmartConnect zone across all ports but do not connect all of them
- C. Leave the archival nodes off the external network switch to save switch ports
- D. Team the NICs across the nodes and just add one connection to minimize the ports required.
Correct Answer: A 🗳️
Which feature will provide data immutability without the ability for the administrator to delete the files under any condition?
- A. Access Control Entries
- B. Compliance SmartLock
- C. Enterprise SmartLock
- D. Role-based Access Controls
Correct Answer: B 🗳️
What form of journaling redundancy is provided by a PowerScale Gen6 cluster?
- A. In the event of a node failure, the peer journal is written to disk on the paired node.
- B. Each node maintains a copy of the peer journal.
The local journal is saved on nonvolatile storage. - C. In the event of a node failure, the peer journal is written to nonvolatile storage on the paired node.
- D. Each node maintains a copy of the peer journal.
The local journal is saved on battery backed-up storage.
Correct Answer: B 🗳️
