DELL EMC D-PSC-DS-23 Dell PowerScale Design 2023 Exam Online Training
DELL EMC D-PSC-DS-23 Online Training
The questions for D-PSC-DS-23 were last updated at Jan 30,2025.
- Exam Code: D-PSC-DS-23
- Exam Name: Dell PowerScale Design 2023 Exam
- Certification Provider: DELL EMC
- Latest update: Jan 30,2025
A large retail customer is using their PowerScale Gen6 cluster to store receipts. The resulting workflow data consists of only small files.
What configuration change is recommended for this environment to reduce CPU overhead?
- A . Set the requested protection level as mirrored protection.
- B . Increase the L2 cache on every node in the cluster.
- C . Set the requested protection level higher than the default.
- D . Decrease the L3 cache on every node in the cluster.
An eight node F900 PowerScale cluster running OneFS 9.4.0 has a dedicated subnet and IP pool for SMB data traffic. SmartConnect Advanced license is applied. The SMB IP pool consists of LACP aggregated 100 GbE interfaces from all the nodes.
What is the maximum number of SmartConnect Service IPs recommended for the SMB subnet?
- A . 8
- B . 1
- C . 4
- D . 6
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
A company with a PowerScale cluster wants to apply quotas to restrict the amount of storage space used by every department. They want to set a quota to each department that stores files on the cluster to no more than 1.2 TB. Each department is when they exceed 1 TB.
Which type of quota should be used?
- A . Advisory
- B . Enforced
- C . Soft
- D . Hard
A telecommunications company has a substantial amount of data. This data is being created by network elements within their environment. The company wants to change the way the network elements Call Detail Records (CDR) are stored and analyzed.
The existing infrastructure consolidates all of the CDRs into a table structure, and then ingests them into a large database. Once ingested, a query engine accesses the database and performs analysis on these files. The system is functional; however, since the amount of CDRs generated will increase exponentially over the next year, the company is open to alternatives for storing and analyzing these records.
In evaluating alternatives, the key requirements are to reduce cost, the amount of storage, and the amount of time to analyze the data. The customer would like to use Hadoop to analyze the CDRs. After you have conducted an assessment of the workflow, you have recommended an Isilon Cluster to work within the Hadoop environment.
What would be the best recommendation to the customer for the workflow of Hadoop with Isilon?
- A . Copy the CDRs from the source to an Isilon cluster with NFS, then use Hadoop to analyze the information directly over HDFS
- B . Write the CDRs directly to an Isilon cluster with an NFS mount, then use Hadoop to analyze the information directly over HDFS
- C . Copy the CDRs from the source to an Isilon cluster with NFS, then ingest the information into Hadoop for analysis
- D . Write the CDRs directly to an Isilon cluster with an NFS mount, then ingest the information into Hadoop with NFS then analyze
A cluster has user quotas that are configured for home directories with hard limits and advisory limits set.
What would be the default setting for calculating user quotas on the cluster?
- A . User data and data protection overhead only
- B . User data, snapshot data, and data protection overhead
- C . User data and snapshot data only
- D . User data only
You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs.
What would be a good prequalifying question to ask?
- A . What Applications access this storage?
- B . What type of racks are in your datacenter?
- C . Are you using a KVM to access your storage?
- D . How many NICs do your clients have?
You are adding a new node to an existing cluster.
What OneFS function should you use to remove the old nodes from the cluster?
- A . SmartFail
- B . SyncIQ
- C . AutoBalance
- D . SmartPools
Refer to the exhibit.
You want to add redundancy to your network configuration, rather than performance. You have configured all interfaces into the default SmartConnect zone.
How should you configure the switches and Isilon networking to provide your desired network redundancy?
- A . Configure the switch ports for LACP and use LACP aggregation for subnet0:pool0.
- B . Configure the switch ports as access points and use LACP aggregation for subnet0:pool0.
- C . Configure the switch ports for LACP and use FEC aggregation for subnet0:pool0.
- D . Configure the switch ports as access points, bond ext-0 and ext-1 on all nodes and use Active/Passive aggregation for subnet0:pool0.
A customer has a 5 node Isilon cluster. The raw capacity of the cluster is 85% used. On average, the cluster has 4,000 users connected during office hours. The average CPU usage is 65%. The customer needs to delete some data to free up capacity.
What should the customer do to minimize the effect of the deletion job?
- A . Delete the data from a client directly connected to the cluster
- B . Run the treedelete job with a high impact and high priority during out-of-office hours.
- C . Run the treedelete job with a high impact and high priority during office hours.
- D . Run the treedelete job with the default impact and priority during out-of-office hours.
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