1 / 12 DELL EMC D-PSC-DS-01 Exam Dell PowerScale Design v2 Exam https://www.passquestion.com/d-psc-ds-01.html 35% OFF on All, Including D-PSC-DS-01 Questions and Answers P ass D-PSC-DS-01 Exam with PassQuestion D-PSC-DS-01 questions and answers in the first attempt. https://www.passquestion.com/ 2 / 12 1.How does node architecture impact performance sizing in a PowerScale solution? A. Each node ’ s CPU and memory characteristics directly influence workload throughput and latency B. Nodes only provide disk storage capacity, not affecting performance C. Node architecture is irrelevant if all nodes run the same OneFS version D. Network switch models completely negate node performance differences Answer: A 2.While considering expanding a current Isilon cluster, what tool or report can be used to investigate current file sizes used on the cluster? A. Isilon web interface: SmartQuotas B. InsightIQ: Deduplication Reporting C. Isilon web interface: Storage pools D. InsightIQ: File System Analytics Answer: D 3.A potential customer requires 800TB 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 planning to deploy a scale-out NAS solution from a competitor of EMC. Which factors can demonstrate a lower TCO using Isilon? A. An IDC study found that Isilon requires 30% less downtime per year compared to other solutions B. Isilon linear scalability eliminates over buying and over provisioning C. An IDC study found that Isilon requires 95% less downtime per year compared to other solutions D. Isilon uses lower speed NL-SAS drives which reduces overall power and cooling requirements E. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors F. Isilon linear scalability eliminates over buying and over provisioning G. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors H. Isilon linear scalability closely aligns with additional staff requirements as capacity grows Answer: CF 4.Where are file system changes first stored? A. L1 Cache B. Endurant Cache C. L2 Cache D. Journal Answer: D 5.In OneFS, what is the largest number of disks in a subpool? A. 234 B. 256 C. 468 3 / 12 D. 864 Answer: B 6.When conducting high-level interviews with stakeholders of a project, what are the key questions that should be asked? A. How much usable storage are you looking for? What client OS will access this storage? Which applications will access this storage? B. Which backup application is in use today? What is your change rate? How many clients will connect to the cluster? C. What does your network architecture look like Do you have existing NAS infrastructure? Do you have 10Gb or 1Gb Which applications will access this storage? D. Who are the application owners? How much usable storage is needed? What applications will be accessing the storage? How many users are in your Active Directory? Answer: A 7.We have been engaged by a research hospital to help upgrade their Isilon installation. They currently have 12 previous generation Isilon nodes with 200 TB of capacity and run on a 1Gbps network. They currently have 6 Illumina Hi-Seq Sequencers and an HPC cluster to process data. They would like to expand Isilon to 2 PB of active data and 1 PB of archive data. They use a third party data and metadata management service (IRODs) to stage data for analysis. The Isilon cluster is mainly used for analysis work with the HPC cluster. Before making any changes, the customer would like a graphical presentation of their existing array performance to present to management. What is the best tool to gather this information? A. InsightIQ B. isi_netlogger C. tcpdump D. netstat Answer: A 8.During an NDMP backup restore using ShallowCopy, a version check fails. Which restore option should you switch to? A. DeepCopy B. RoboCopy C. EMCopy D. ComboCopy Answer: A 9.In a cluster with N+2 protection, which type of object would be triple mirrored automatically when written to the OneFS file system? A. All files smaller than 128 KB B. All files smaller than 512 KB C. All files smaller than 256 KB D. All files smaller than 1 MB 4 / 12 Answer: A 10.Which license is a prerequisite for enabling CloudPools? A. SmartPools B. FilePools C. DiskPools D. NodePools Answer: A 11.Which OneFS process protects file system structures against corruption using 32-bit CRC checksums? A. Media Scan B. IntegrityScan C. File System Journal D. Dynamic Sector Repair Answer: C 12.Which best practices improve SnapshotIQ deployment? (Select all that apply) A. Schedule snapshots during periods of low I/O activity B. Apply different snapshot retention policies for different data sets C. Disable snapshots on all critical directories to reduce overhead D. Keep all snapshots in a single global policy regardless of workload Answer: AB 13.Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for their video surveillance operations. They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec with a 30 days retention policy. Which storage capacity would be the best suited to meet the required changes and utilize 65-75% capacity? A. 110 TB B. 80 TB C. 140 TB D. 50 TB Answer: A 14.What should be included when defining IP address pools for client access? (Select all that apply) A. SmartConnect zone configuration B. Subnet and VLAN information C. Deduplication policy schedules D. Protection policy templates Answer: AB 5 / 12 15.At a minimum, how many connected and available nodes are required to maintain quorum in a 25- node cluster? A. 10 B. 12 C. 13 D. 17 Answer: C 16.A European Sports TV network is considering Isilon for their Media Edit Storage for their editing workloads. They are also considering Isilon for near-line media archiving. The network receives XDCAM HD footage which is loaded onto their existing Transcoding Storage platform. New footage that needs to be edited will be transferred from their Transcoding Storage platform to the proposed Media Edit Storage platform at the rate of ten simultaneous XDCAM HD files via FTP. Edited files will be transferred back to the Transcoding Storage platform at the rate of ten simultaneous XDCAM HD files via FTP. The network currently has 15 Final Cut Pro edit stations, 15 Avid edit stations. Proxy software will be used to allow Isilon to act as the storage for the Final Cut Pro and Avid media. Three of those edit stations will be performing content compositing as needed. The network expects 70 hours of new content per week, and 50 hours of edited content per week. They intend to keep the new and edited content on the proposed Media Edit Storage as a performance tier for 30 days. They would like to retain all new and edited footage proposed Media Edit Storage as a near-line tier for two years. 6 / 12 In addition to the current workloads, the network expects to implement a new Media Asset Management (MAM) solution and has requested the Isilon cluster be capable of supporting 120 MBps read and 120 MBps write to support the MAM requirements. The customer wants to be able to put completed content into a non-editable folder. However, they want to give access to an administrator to delete content if required. What do you recommend to the customer? A. SmartLock using Enterprise mode B. SmartLock using Compliance mode C. WORM using Compliance mode D. SyncIQ with read-only mode Answer: A 17.For concurrent I/O, how do SmartCache and Endurant Cache differ? A. Endurant Cache sends an acknowledgement to the client immediately after mirroring writes in NVRAM B. Endurant Cache waits for acknowledgement from all nodes before copying to L2 cache C. SmartCache immediately commits the write to NVRAM on the local node and one peer node D. SmartCache uses sub-file, granular locking whereas Endurant Cache locks the entire file Answer: A 18.What role does SmartConnect play in a PowerScale environment? A. It provides cross-protocol user authentication and authorization B. It automatically provisions IP pools across multiple groupnets C. It delivers load balancing and failover for client connections through DNS delegation D. It manages deduplication policies for large file datasets Answer: C 19.A customer has grown 2 PB in the last year. The cluster performs well most times of the day, but occasionally during the day, the customer notices a decrease in performance. You have been told that 7 / 12 ‘ tree-deletes ’ are taking too long and can only be run on weekends. What would you recommend to speed up the ‘ tree-deletes ’ ? A. Add an SSD node tier for metadata to account for at least 2% of RAW capacity B. Use an A100 node for added CPU performance to help with ‘ tree-deletes. ’ C. Add 20% more nodes to the cluster to help with degraded performance. D. Add an SSD tier for metadata, ensuring all nodes have SSDs. Answer: A 20.Which Isilon feature increases available space by consolidating copies of identical blocks of data? A. SmartDedupe B. SmartQuotas C. Compliance D. FlexProtect Answer: A 21.Which data access patterns best match H500 home directory and A200 archive workloads? A. Streaming for both node types B. Concurrency for H500, Streaming for A200 C. Random for both node types D. Streaming for H500, Random for A200 Answer: B 22.Which platforms are supported by CloudPools with the initial OneFS 8.0 release? A. Microsoft Azure, AT&T Synaptic Cloud, and Amazon S3 B. AT&T Synaptic Cloud, Microsoft Azure, and Rackspace Cloud Files C. EMC ECS, Amazon S3, Google Cloud Storage, and EMC Isilon D. Amazon S3, Microsoft Azure, EMC ECS, and EMC Isilon Answer: D 23.You are gathering information to design a PowerScale solution. Which factors are included in the Top 10 qualification questions? A. Current infrastructure, applications in use, desired protocols, and company turnover. B. Current infrastructure, desired protocols, CapEx/OpEx preference, and growth rate. C. Required capacity, average file size, growth rate, and network topology. D. Required capacity, applications in use, desired protocols, and growth rate. Answer: C 24.Refer to the exhibit. 8 / 12 During a requirements gathering meeting, the customer identified a desire to use a codec for editing content that will take up the least amount of space on their Isilon cluster. The content is 1920x1080 HD. Based on the provided list of codecs, which codec would minimize the storage requirement? A. DNxHD 145 8 Bit B. DPX 8 Bit C. ProRes 444 12 Bit D. DNxHD 220 10 Bit Answer: A 25.A PowerScale cluster is configured with SmartConnect zones using dynamic IP address allocation. Failback is enabled. If there is a node failure, what happens to the IP address? A. IP address is no longer used, and a new connection must be made. B. IP address is moved to a new node, but the connection does not continue. C. IP address is moved to a new node, and the connection continues. 9 / 12 D. The client must re-establish the connection to the node. Answer: C 26.Refer to the exhibit. Which tool was used to create this output and which line item counts the metadata read operations occurring in the file service? A. nfsstat and getattr B. iostat and fsstat C. tcpdump and nfsstat D. isi_netlogger and commit Answer: A 27.What should be evaluated first when determining hardware capacity for a PowerScale solution? A. Switch port availability B. Average file size and access patterns C. SnapshotIQ schedule configuration D. SyncIQ replication topology Answer: B 28.Match each design component with its purpose: 1. Groupnet 2. SmartConnect Zone 3. Node Architecture 4. File Size Profile Options: a) Determines DNS and authentication scope b) Handles client connection load balancing and failover c) Impacts node performance sizing and selection d) Influences protection overhead and I/O behavior A. 1 → a 2 → b 3 → c 4 → d 10 / 12 B. 1 → a 2 → c 3 → b 4 → d C. 1 → b 2 → a 3 → c 4 → d D. 1 → a 2 → d 3 → c 4 → b Answer: A 29.Which SmartPools capabilities improve storage efficiency and performance? (Select all that apply) A. File pool policies for automated data placement B. Intelligent tiering across performance and capacity node pools C. Automatic WORM enforcement for compliance retention D. Cross-protocol user mapping between SMB and NFS Answer: AB 30.What capabilities does the Job Engine offer for background task control? (Select all that apply) A. Prioritization of critical jobs to reduce user impact B. Throttling background jobs during peak I/O activity C. Real-time encryption of job data streams D. Automatic backup of all job logs to CloudPools Answer: AB 31.Your application needs 1000 more users, each requiring 24 MB of RAM and 1 – 4 MB file I/O. Current cluster is 5 legacy X200 nodes. Which modern expansion best supports the load? A. Add five H400 nodes B. Upgrade existing NICs to 10 GbE C. Add RAM to legacy X200 nodes D. Add A-series archive nodes Answer: A 32.In an NFSv3 only environment, what is the recommended limit for active NFSv3 connections, per Isilon node? A. 500 B. 1,000 C. 1,500 D. 2,500 Answer: B 33.Which OneFS roles should be assigned to an Active Directory group for login privileges equivalent to the ‘ admin ’ local account? A. System Admin and Security Admin B. System Admin, BackupAdmin, and StatisticsAdmin C. System Admin, AuditAdmin, and BackupAdmin D. Security Admin and AuditAdmin Answer: A 11 / 12 34.A customer has eight X400 nodes with 24 GB RAM each, supporting 400 client connections today. They plan to add 400 more clients in the next few months and are considering adding an A-Series node to help with client connections. What hardware change is recommended before adding these additional client connections? A. Add an A100 accelerator node to handle additional concurrent client connections B. Add additional RAM to existing nodes and implement SmartConnect load balancing C. Add more network switches to increase the number of available connections D. Add SSD nodes to accelerate client connection handling Answer: B 35.Three jobs of different exclusion sets with a priority level of 5 are concurrently running on a cluster. A new job with a priority of 4 needs to be run. What does the Job Engine do? A. Pauses all priority 5 jobs and runs the new job until completion, then restarts the paused jobs B. Pauses one priority 5 job and runs the new job until completion, then restarts the paused job C. Queues the priority 4 job until higher-priority jobs complete D. Runs the new job in parallel with the other running jobs Answer: C 36.Refer to Exhibit below. What is represented by the information shown in the exhibit? A. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp. 12 / 12 B. Directory quota cannot exceed 2 TB for /ifs/data/media and no quota limit on /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp. C. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 2 TB for /ifs/data/media/temp. D. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 900 GB and each user can only store 75 GB for /ifs/data/media/temp. Answer: A 37.What is a consideration when designing access zones? A. Authentication providers are restricted to one specific zone B. UID/GID ranges should not overlap for providers in the same zone C. Access zones cannot overlap the same directories D. Share names must be unique between different access zones Answer: B 38.What is the recommended best practice for time synchronization on a PowerScale cluster? A. Disable NTP and rely only on SMB time synchronization. B. Use NTP for both the cluster and the Domain Controller. C. Use SMB time synchronization by default and NTP for Domain Controllers. D. Enable both SMB time sync and NTP equally for all nodes. Answer: B 39.What are three benefits of NDMP multistream backup and recovery? (Choose three) A. Backup context is retained B. Backup concurrently C. Different backup context D. Faster backup time E. Backup sequentially Answer: ABD 40.Which factor primarily influences node compatibility when designing a PowerScale cluster expansion? A. Number of snapshot schedules configured B. The hardware generation and OneFS version supported by existing nodes C. The network subnet mask used for client connections D. The file system protection level applied to each directory Answer: B