Practice Free D-PSC-DS-01 Exam Online Questions
A PowerScale cluster has two ports that are configured per node. Each port is on a different VLAN. Although incoming traffic is evenly distributed, transmitted data from PowerScale uses one port more than the other port.
What could be the cause of this imbalance?
- A . Static routes are configured on the less-used port.
- B . A default gateway was not configured on both ports.
- C . Source-Based Routing is not enabled on the cluster.
- D . Priority of the gateway in the less-used port set too low.
Which type(s) of data is predominately associated with home directories and file shares?
- A . E-mail files, PPT, Word documents
- B . Oracle directories
- C . SQL database files
- D . XML data
You have gathered information from your customer about their current NAS environment. They indicated they are having performance and timeout issues with their clients accessing the storage.
Currently, over 5,000 clients are simultaneously accessing the NAS, and this number is expected to double within a year.
Which cluster design best meets the customer’s requirements and future growth?
- A . Deploy a three-node cluster now and add three more nodes for every additional 1,000 clients.
- B . Deploy a six-node PowerScale X410 cluster now and add additional X410 nodes as client connections grow.
- C . Deploy a five-node X410 cluster and add a Performance Accelerator node for every 1,000 additional clients.
- D . Deploy a seven-node X410 cluster now with no future node additions.
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 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 . Iostat and nfsstat
- B . Perfmon and sysstat
- C . Isi statistics and Wireshark
- D . Syslog and vmstat
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
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.
You are called into an opportunity and need information on the data skew of the filer. The customer has a supported filer.
Which assessment tool should you use to generate this information?
- A . InsightIQ
- B . Workflow Proflie
- C . Live Optics Workload Analyzer
- D . SupportIQ
What role does the isi statistics command play in workload analysis?
- A . It provides real-time performance metrics such as IOPS, latency, and throughput
- B . It generates access control policies for SMB and NFS
- C . It builds SmartConnect failover rules dynamically
- D . It automatically adjusts SyncIQ replication schedules
Which factor most directly impacts workflow design when considering file size growth?
- A . Frequency of isi statistics queries
- B . Change in I/O pattern from small to large files over time
- C . Number of access zones for authentication
- D . Snapshot schedule frequency