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EMC D-PSC-DS-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: PowerScale Architecture and Concepts | - OneFS architecture overview - Cluster components and node types - File system layout and data flow |
| Topic 2: Security and Access Control | - Authentication and authorization methods - Data encryption and security design - Role-based access control concepts |
| Topic 3: Storage Management and Data Services | - Data lifecycle management - SmartPools tiering and data placement - Protocol support (NFS, SMB, HDFS) |
| Topic 4: Data Protection and Availability | - Failure domains and resilience design - Snapshot and snapshotIQ concepts - Erasure coding and replication strategies |
| Topic 5: Networking Design for PowerScale | - SmartConnect configuration concepts - Client access and load balancing - Network topology design |
| Topic 6: Cluster Design and Planning | - Scalability considerations - Sizing and capacity planning - Workload assessment and performance design |
| Topic 7: Monitoring, Troubleshooting, and Optimization | - Performance monitoring tools - Cluster health diagnostics - Common design troubleshooting scenarios |
EMC Dell PowerScale Design 2023 Sample Questions:
Question 1
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. Protocols (SMB, NFS, FTP, HTTP, HDFS)
Authentication and Directory Services
Performance and Latency Concerns
C. WORM requirements
Network ports for replication
Snapshots for user restores
D. Default Cluster Protection Level
Additional Directory Level Protections
Snapshots and Replication
Question 2
A customer has an SMB file directory with 375 TB of data on the primary cluster with a protection level of N+ 3:1. They want to replicate this directory to the secondary cluster. The customer would like information about the possibility of setting protection levels on the target cluster.
What information can be provided to the customer about the protection level for the target directory?
A. Configured separately on the target cluster and must match the source
B. Controlled by SyncIQ and cannot be altered
C. Configured separately on the target cluster and does not need to match the source
D. Controlled by SyncIQ and can be altered by the CLI
Question 3
What are the available Usermapper roles?
A. Primary, Secondary, and Client
B. Local, Remote, and Client
C. Primary, Local, and Remote
D. Active, Passive, and Standby
Question 4
How is data moved to the cloud using the CloudPools software module?
A. Data is transferred to cloud services based on CloudPools policy settings, leaving nothing on the Isilon cluster
B. Files are divided into 1 MB objects and stored in the cloud, leaving small stub files on the Isilon cluster
C. Files are divided into 1 MB objects and transferred over NDMP to the cloud service, leaving database entries on the Isilon cluster
D. Data is transferred to cloud services and encoded based on the cloud configuration, leaving small stub files on the Isilon cluster
Question 5
A potential customer is considering replacing a four year old, Linux-based NFS server with 40TB of usable capacity. The existing system supports home directories, an internal website, and a content repository for the customer's content management system.
The customer is concerned about performance of any new solution because they expect to double workload in the content management system.
What tools can be used to collect performance data needed to size the new solution?
A. Syslog and vmstat
B. Perfmon and sysstat
C. Iostat and nfsstat
D. Isi statistics and Wireshark
Solutions:
| Question 1 Answer: D | Question 2 Answer: C | Question 3 Answer: A | Question 4 Answer: B | Question 5 Answer: C |
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