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EMC E20-554 Exam Syllabus Topics:

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. A potential customer uses a solution from an EMC competitor for NFS storage in their main data center. The existing arrays are five years old, and the customer would like to consolidate them into a single new system. The entire workload is generated by eight Linux hosts connected to the arrays that process video files. The customer informs you they are not able to collect performance information from the existing arrays.
Which tools can capture the workload requirements?

A) netstat and esxtop
B) MiTrends and netmon
C) Wireshark and sysstat
D) iostat and nfsstat

2. Which IsilonOneFS protection level allows you to withstand two drive failures but no more than one complete node failure?

A) N+1
B) N+3:1
C) N+2
D) N+2:1

3. Which protocols are supported by IsilonOneFS for file access?

A) SMB, HTTP, SMTP, HDFS
B) FTP, NFS, SMB, FC
C) NFS, HDFS, HTTP, SMB
D) HDFS, NFS, iSCSI, SNMP

4. An Isilon customer is reporting less than expected performance from the cluster and poor space utilization. The customer is using three X400 nodes with N+2:1 protection policy to host webserver log data. Upon further analysis, it is discovered that the webservers write log files 64 KiB in size. The log files are then accessed by an analytics application for reporting.
What should be done to increase write performance of the cluster?

A) Add S-Series storage nodes to the cluster.
B) Change the protection scheme to a mirroring policy.
C) Add SSDs to the X-Series nodes in the cluster.
D) Add A-Series performance accelerator nodes to the cluster.

5. Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for their video surveillance operations.
They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec, with a 30 days retention policy.
How many nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?

A) 8 nodes
B) 4 nodes
C) 16 nodes
D) 12 nodes

Solutions: