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EMC D-PSC-DS-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Storage Management and Data Services | - SmartPools tiering and data placement - Protocol support (NFS, SMB, HDFS) - Data lifecycle management |
| Topic 2: PowerScale Architecture and Concepts | - Cluster components and node types - File system layout and data flow - OneFS architecture overview |
| Topic 3: Networking Design for PowerScale | - SmartConnect configuration concepts - Network topology design - Client access and load balancing |
| Topic 4: Data Protection and Availability | - Snapshot and snapshotIQ concepts - Failure domains and resilience design - Erasure coding and replication strategies |
| Topic 5: Cluster Design and Planning | - Workload assessment and performance design - Sizing and capacity planning - Scalability considerations |
| Topic 6: Security and Access Control | - Authentication and authorization methods - Role-based access control concepts - Data encryption and security design |
| Topic 7: Monitoring, Troubleshooting, and Optimization | - Performance monitoring tools - Common design troubleshooting scenarios - Cluster health diagnostics |
EMC Dell PowerScale Design 2023 Sample Questions:
Your customer has several departments that want separate access to the cluster so they can use their individual authentication methods. Two of the departments will use NFS and two will use SMB to access the cluster.
What would you recommend?
- A. Create two separate access zones for the NFS clients, and use the System zone for the SMB clients.
- B. Create two separate access zones for the SMB clients, and use the System zone for the NFS clients.
- C. Have all clients access the System zone, and use RBAC to control authentication.
- D. Create separate access zones for both the SMB and NFS clients.
Correct Answer: D 🗳️
A customer needs to be able to periodically monitor their node live performance for ongoing operational tasks as well as during problem analysis. You have recommended they use the isi statistics command to fulfill this need.
What types of statistics and statuses could be displayed with this command?
- A. Drive statistics, node status, protocol alerts, general performance
- B. Node statistics, general status, drive status, hardware statistics
- C. Node alerts, Job Engine statistics, hardware status, protocol statistics
- D. Protocol status, drive statistics, hardware statistics, node statistics
Correct Answer: D 🗳️
Refer to the exhibit.
Your customer has three different clusters. File systems on two of the clusters are at 90% full, and the largest cluster is 10% full. Active data resides on the largest cluster. The customer has five different node types totaling 2PB and 54 nodes.
Nodes from left to right are as shown:
1. X200
2. 12000X
3. 36000X
4. NL108
5. 108NL
They have a Smartpool license and believe that tiering data would help free up needed space.
After talking with the customer and explaining the use of SmartPools, how would you recommend optimizing utilization across all of the nodes that the customer owns?
- A. Borrow nodes to reconfigure the cluster and migrate the data to new cluster.
- B. Explain to the customer that this will result in data loss.
- C. Attach all nodes to a common Infiniband switch.
- D. Go to GUI and put alike nodes in the same pools. Then name them.
Correct Answer: D 🗳️
Your customer purchased an Isilon cluster with eight X400 nodes for Home Directories. Your follow- up discussions have uncovered an opportunity to expand the cluster to support the Legal Department.
As you prepare to complete the Workflow Profile Document, you meet with the customer to discuss data protection.
Which key areas should you address?
- A. Default Cluster Protection Level
Backup Windows and Processes
Concurrency of user access - B. Default Cluster Protection Level
Additional Directory Level Protections
Snapshots and Replication - C. Protocols (SMB, NFS, FTP, HTTP, HDFS)
Authentication and Directory Services
Performance and Latency Concerns - D. WORM requirements
Network ports for replication
Snapshots for user restores
Correct Answer: B 🗳️
Which service daemon is used by FTP and FTPS to transfer files to and from the cluster?
- A. vsftpd
- B. ftpsd
- C. ftpd
- D. sftpd
Correct Answer: C 🗳️
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