D-PSC-DS-01 Sample Questions & Answers
OneFS Job Engine internals, filesystem structure, and SmartConnect networking make up the largest portion, framed by gathering customer requirements, solution and networking design, continuity and governance planning, and performance-assessment tools.
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- Question 1Beginner
Discover Customer Infrastructure and Requirements · PowerScale use-case identification
True or False: When discovering customer requirements for a PowerScale deployment, a transactional SQL database requiring low-latency block-level storage (iSCSI/Fibre Channel) is considered a primary and highly recommended use case for OneFS.
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Correct answer: B
False. PowerScale/OneFS is a scale-out NAS designed for unstructured data (file and object workloads) using protocols like SMB, NFS, S3, and HDFS. It does not provide block-level storage (iSCSI or Fibre Channel), making it unsuitable for traditional transactional SQL databases requiring block storage.
- Question 2IntermediateSelect 2
Discover Customer Infrastructure and Requirements · Requirements discovery and workload characterization
You are leading a discovery workshop with an enterprise customer. They have an existing NAS environment with 200 distinct departments. The IT director states, 'We need to migrate to PowerScale, but we must ensure that no single department can consume more than their allocated 10 TB of storage, and we need daily reports on their usage.' Which two OneFS software features must be included in your solution design to meet these requirements? (Select TWO)
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Correct answers: A, B
SmartQuotas is required to enforce the 10 TB hard limit per department (directory, user, or group quotas). InsightIQ (or DataIQ/CloudIQ) is required to generate the daily usage reports the IT director requested.
SmartQuotas is required to enforce the 10 TB hard limit per department (directory, user, or group quotas). InsightIQ (or DataIQ/CloudIQ) is required to generate the daily usage reports the IT director requested.
- Question 3Advanced
Discover Customer Infrastructure and Requirements · PowerScale use-case identification
A university research department needs a storage solution for genomic sequencing. The workflow involves instruments writing small sequence files continuously, followed by an immediate assembly phase requiring massive read throughput, and finally long-term retention of the assembled genomes for 10 years. Which combination of features and node types provides the most optimal end-to-end design?
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Correct answer: D
This is the classic genomics workflow design. F-series (all-flash) handles the high IOPS of ingest and the massive read throughput of assembly. A-series (archive) provides deep, cost-effective storage for the 10-year retention. SmartPools automates the lifecycle movement between these tiers within the single namespace.
- Question 4Intermediate
PowerScale Infrastructure Design and Plan · Front-end and back-end network design
A customer is designing their front-end network for a new PowerScale F900 cluster. They want to ensure that client connections are dynamically distributed based on the actual network throughput load of each node, rather than just round-robin DNS. Which feature and configuration are required to achieve this?
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Correct answer: D
SmartConnect Advanced is required for advanced connection balancing policies such as CPU utilization, connection count, or network throughput. SmartConnect Basic only supports Round Robin. To balance based on actual network throughput, SmartConnect Advanced must be licensed and configured with the Network Throughput policy.
- Question 5Advanced
PowerScale Infrastructure Design and Plan · Front-end and back-end network design
A large enterprise wants to consolidate their disparate file servers onto a single PowerScale cluster. They have three distinct subsidiary companies (SubA, SubB, SubC). Each subsidiary uses its own Active Directory domain and completely overlapping IP address spaces (e.g., all three use 10.0.0.0/8 internally). How should you design the OneFS network configuration to support this requirement?
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Correct answer: D
Groupnets are the highest level of the OneFS networking hierarchy and are specifically designed to support multi-tenancy with distinct DNS namespaces and overlapping IP subnets. By creating a Groupnet for each subsidiary, you isolate their DNS resolution and routing, allowing them to use overlapping IP spaces while authenticating against their respective AD domains.
flowchart TD Cluster[PowerScale Cluster] Cluster --> G1[Groupnet: SubA] Cluster --> G2[Groupnet: SubB] Cluster --> G3[Groupnet: SubC] G1 --> DNS1[DNS: 10.0.0.53] G2 --> DNS2[DNS: 10.0.0.53] G3 --> DNS3[DNS: 10.0.0.53] - Question 6Intermediate
PowerScale Infrastructure Design and Plan · Front-end and back-end network design
An organization is deploying a 12-node PowerScale cluster for a mixed workload environment. They plan to use LACP (Link Aggregation Control Protocol) on the front-end network interfaces to provide redundancy and increased aggregate bandwidth. What is a critical design requirement when configuring LACP with OneFS?
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Correct answer: D
When configuring LACP on OneFS nodes, the corresponding ports on the physical front-end switch must also be explicitly configured as an active LACP port channel (IEEE 802.3ad). If the switch is not configured correctly, the links will not aggregate, and network connectivity issues will occur.
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