Practice Free D-PSC-DS-01 Exam Online Questions
What are valid uses of iostat and netstat in PowerScale design validation? (Select all that apply)
- A . Measuring disk I/O performance at the operating system level
- B . Evaluating network interface performance and socket connections
- C . Automatically adjusting file pool policies for tiering
- D . Validating SmartConnect DNS delegation
A North-American based customer has an existing six node A2000 cluster installed in a Titan-HD rack, using ten rack units. The customer would like to add a new F800 node tier to their cluster. Their data center uses under-floor cooling and single-phase power.
What is a consideration when installing the F800 nodes?
- A . The F800 nodes will not fit in a Titan-HD rack.
- B . Two F800 nodes can be added to the open node slots.
- C . Step-up transformers are required.
- D . A2000 backend ports are incompatible with the F800.
Your customer is looking for a storage solution that will be able to store seven million 3 MB files which are written and seldom accessed.
Read and write operations are both completed by a webbased application, which requires 1.3 Gbps throughput. The customer’s network has not been upgraded in many years, so the network interfaces are 1 Gbps.
What would be the best solution for this network configuration?
- A . Use LACP to aggregate the network ports on each node.
- B . Use jumbo frames to compensate for the 1GB Core network.
- C . Aggregate Infiniband (IB) ports across all nodes.
- D . Bond EXT-0 across all nodes.
A customer wants to add Unix users to their cluster, and requires that NFS access be faulttolerant.
What would you recommend?
- A . Use NFS v4 and dynamic IP addressing with SmartConnect Basic
- B . Use NFS v4 and dynamic IP addressing with SmartConnect Advanced
- C . Use NFS v3 and dynamic IP addressing with SmartConnect Advanced
- D . Use NFS v3 and dynamic IP addressing with SmartConnect Basic
What method does the MediaScan job leverage to locate and clear media-level errors?
- A . MD5
- B . FEC
- C . SHA256
- D . CRC
When a Gen 6 Isilon cluster receives a file to be stored, which node(s) performs the FEC calculation?
- A . Node to which the client is connected
- B . Each node in the cluster
- C . First node in each node pair
- D . Node that will be holding the FEC
Which cache type contains data blocks from previous read and write transactions?
- A . Metadata stored on SSDs
- B . L2 cache
- C . L1 cache
- D . L3 cache
How does the HealthCheck tool benefit daily PowerScale operations?
- A . Automatically repairs failed nodes
- B . Validates cluster configuration and identifies potential risks proactively
- C . Generates cloud backup policies automatically
- D . Consolidates access zones into one unified domain
A customer has two PowerScale clusters. Cluster1 has eight H700 nodes, and Cluster2 has twelve A300 nodes. The customer wants to monitor real-time performance data of both clusters and track file growth.
Which tool should be recommended?
- A . IOZone
- B . Iperf
- C . InsightIQ
- D . Iometer
An Isilon cluster is configured with SmartConnect zones using dynamic IP address allocation. Failback is enabled.
What happens to the IP address in the event of a node failure?
- A . The connection must be re-established by the client.
- B . IP address is moved to a new node and the connection continues.
- C . IP address is moved to a new node but the connection does not continue.
- D . IP address is no longer used and a new connection needs to be made.