D-PSC-DS-01 Exam Questions - D-PSC-DS-01 Guide Torrent & Dell PowerScale Design v2 Exam Test Guide

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EMC D-PSC-DS-01 Exam Syllabus Topics:

SectionObjectives
PowerScale Architecture & Fundamentals- OneFS architecture
  • 1. Data protection and striping concepts
    • 2. File system layout and distributed design
      Data Protection & Availability- Erasure coding / protection levels
      • 1. Drive and node failure tolerance
        Performance & Scalability- Cluster scaling behavior
        • 1. Linear scale-out architecture benefits
          - Performance tuning
          • 1. Cache hierarchy (L1/L2/L3)
            • 2. Metadata acceleration
              Cluster Design & Sizing- Node selection and performance tiers
              • 1. H-series, A-series, F-series node usage
                • 2. Workload mapping and scaling principles
                  Data Management & Storage Efficiency- SmartPools and tiering
                  • 1. Lifecycle management strategies
                    • 2. Policy-based data movement
                      - Snapshots and protection
                      • 1. SnapshotIQ behavior and overhead

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                        EMC Dell PowerScale Design v2 Exam Sample Questions (Q174-Q179):

                        NEW QUESTION # 174
                        What should be avoided when designing snapshot schedules?

                        Answer: A


                        NEW QUESTION # 175
                        When designing a SmartConnect IP pool, what is the recommended IP address pool allocation method and protocol state for NFSv3?

                        Answer: B


                        NEW QUESTION # 176
                        What should be included when defining IP address pools for client access? (Select all that apply)

                        Answer: A,B


                        NEW QUESTION # 177
                        -- Exhibit --
                        A large manufacturing company is an existing Isilon customer with a cluster consisting of four NL400 nodes with 4TB drives. The cluster is using N+2:1 protection level and the file system shows that it is 60% utilized.
                        Home directories and file shares comprise 75% of the existing content and the remainder is inactive deep archive. The company has 1,000 employees using Windows and Mac clients participating in a single Active Directory (AD) forest.
                        During a meeting with the CIO and Director of IT you discuss the company's recent acquisition - an engineering firm that specializes in Computer Aided Design (CAD). The engineering firm has 400 UNIX workstations that produce technical drawings which are currently stored on another vendor's SAN solution.
                        The all UNIX environment uses NIS for authentication and name resolution. They do not currently use DNS or LDAP. The engineering company has an old storage system that has been experiencing problems and the CIO would like you to migrate the data onto the Isilon cluster. The CIO would like to eliminate all tape and recover the data onto disk.
                        The CIO is concerned about security of the company's intellectual property, especially with the rapid adoption of mobile devices and external cloud content sharing services such as DropBox, Egnyte, and SugarSync. They would like to implement an alternative that provides external file sharing and mobile device synchronization while maintaining security control over the company's data.
                        The Director of IT reports that users are storing non-work related content on the Isilon cluster. They would like to limit the amount of capacity that each user can consume in their home directory and want to ensure you provide the capability to easily visualize which users are over their allotment.The company's Windows users currently leverage Windows Shadow Copy to recover files that have been accidentally deleted. The IT department wants to ensure that Mac and incoming UNIX clients have the same functionality.
                        The Director of IT also mentions that users are reporting slow response times when browsing their home directories and shared folders. They are concerned that Isilon cannot scale to support their combined requirements.
                        -- Exhibit --
                        Based on the meeting with the customer, which Isilon cluster configuration would you recommend?

                        Answer: C


                        NEW QUESTION # 178
                        An Isilon cluster has two ports configured per node. Each port is on a different VLAN. Although incoming traffic is evenly distributed, transmitted data from the Isilon uses one port more than the other port.
                        What could be the cause of this imbalance?

                        Answer: C


                        NEW QUESTION # 179
                        ......

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