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EMC Specialist - Technology Architect, PowerScale Solutions Sample Questions:

1. Refer to the exhibit.

Which tool was used to create this output and which line item counts the metadata read operations occurring in the file service?
Response:

A) nfsstat and getattr
B) iostat and fsstat
C) isi_netlogger and commit
D) tcpdump and nfsstat

2. What are characteristics of the Streaming data access pattern on a Gen 6 Isilon cluster?
Response:

A) Single stream workflows, very aggressive prefetching
B) Clients accessing the same data, moderate prefetching
C) Multiple stream workflows, no prefetching
D) Clients accessing the same data, aggressive prefetching

3. Your customer has a new business unit. They are gathering web log files to be analyzed. They are using Hadoop to do the analysis of the logs. The IT department is centrally storing the log files on a 5-node Isilon cluster.
They have enabled the Hadoop cluster to access the files directly on the Isilon storage. The nodes are X400's with two SSD drives in each node and 96GB of RAM.
How many DataNodes does the Isilon cluster have?
Response:

A) Five
B) Three
C) One
D) Two

4. There is a concern that there are not enough physical switch ports available for the Isilon cluster in a new implementation with SMB and ICAP requirements. What course of action should be taken?
Response:

A) Leave the archival nodes off the external network switch to save switch ports
B) Team the NICs across the nodes and just add one connection to minimize the ports required.
C) The customer needs to provide more switch ports for the implementation
D) Create a SmartConnect zone across all ports but do not connect all of them

5. You are involved with a Proof of Concept where the performance is not what you expect. What can you use to collect process stack information and a listing of process waiting on I/O?
Response:

A) isi statistics
B) netstat
C) tcpdump
D) isi_get_itrace

Solutions: