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EMC E20-554 Exam Syllabus Topics:

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. A cost-conscious customer is exploring Isilon for their PACS archive. The workflow consists of one hundred cases a day, each including fifty 60MB image files. However, each image will have five-hundred 64kB metadata files associated with it. They currently have six years worth of archived data. They will need to migrate to the new solution and they need to plan for an additional three years of archive capacity.
Which solution would you recommend to fit their capacity needs?

A) 12 NL-Series nodes with N+2 protection policy providing 1300 TiB of useable capacity
B) 24 NL-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
C) 24 X-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
D) 18 NL-Series nodes with N+2:1 protection policy providing 2078 TiB of useable capacity

2. You are asked to size a cluster for a file sharing environment. nfsstat indicates that no more than 10% of the requests are namespace operations (e.g. GETADDR, SETADDR). There will be 10,000 active Linux users, connecting over NFS.
Which cluster configuration would you recommend?

A) Eight X200 (36 TB) 24 GB RAM, no SSD, N+2:1
B) Ten X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1
C) Five X400 (120 TB) 96 GB RAM, 2.4 TB SSD, N+2
D) Ten X400 (60 TB) 48 GB RAM, 2.4 TB SSD, N+2:1

3. A hospital is considering using Isilon to store their archived medical images and genomic sequencing data. They currently have 56 TB of PACS images and 24 TB of genomic data, and expect to double their capacity requirements this year. They will replicate to a DR cluster, and plan to use N+2 protection. The production workload needs to be run at either site.
Which minimum cluster configuration, at each site, including software, would meet this customer's environment?

A) Seven X200 (3 TB drives) nodes with SyncIQ and SnapshotIQ
B) Four NL400 (3 TB drives) nodes with SyncIQ.
C) Five X400 (2 TB drives) nodes with SnapshotIQ.
D) Five X400 (2 TB drives) nodes with SyncIQ.

4. You meet with the IT Director of a large single site campus. The IT department has recently taken over Physical Security from the facilities department and plans a complete overhaul of the surveillance solution. They are looking to you as a storage architecture expert to provide the correct amount of storage needed. The IT Director asks you what items they need to provide in order to size this solution.What data do you require from the customer?

A) Video resolution Video CODEC Frames per second (fps) Number of devices Retention time
B) Pixel count Video CODEC Color sampling Frames per second (fps) Number of devices Video management system Evidence collection period
C) Bit rate per camera Camera manufacturer Video management system Retention time
D) Pixel count Video CODEC Color sampling Frames per second (fps) Number of devices Retention time

5. You are reviewing an opportunity with a trusted advisor. You both discover gaps in the initial solution design.
Each iterative discussion with the customer helps you define the solution better. The documents produced capture the customer's requirements.
What else needs to occur to refine the sizing considerations?

A) Provide the CIO with the findings and gain commitment to a Proof of Concept.
B) Complete your Solution Design Document and forward to EMC consulting.
C) Validate the Workflow Profile Assessment and test the solution against your findings.
D) Review you assumptions and ask the customer what business issue you're solving.

Solutions: