E20-555 EMC Exam Questions and Free Practice Test

Question 43

A healthcare services provider is implementing an X-Series cluster. Currently they have approximately 200 customers and they are growing at 30% per year. They have 200 TB of storage utilized. Health Insurance Portability and Accountability Act (HIPAA) regulations require they keep all patient data for seven (7) years. They would like to keep all genomic sequencing data stored with N+3 protection, not to exceed 75% utilization.
What is the minimum initial configuration you would recommend?

A. 13 X400 nodes; 1 TB drives

B. 6 X400 nodes; 4 TB drives

C. 13 X200 nodes; 3 TB drives

D. 7 X400 nodes; 1 TB drives

Correct Answer:A

Question 44

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 65% utilized for their video surveillance operations.
They wish to achieve the following:
Upgrade from 1280 x 720 resolution, with a 15 days retention policy, to 2048 x 1536 resolution with a 30 days retention policy.
What is the minimum number of nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?

A. 6 nodes

B. 10 nodes

C. 14 nodes

D. 18 nodes

Correct Answer:A

Question 45

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. 24 NL-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity

B. 18 NL-Series nodes with N+2:1 protection policy providing 2078 TiB of useable capacity

C. 24 X-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity

D. 12 NL-Series nodes with N+2 protection policy providing 1300 TiB of useable capacity

Correct Answer:A

Question 46

You are designing a new Isilon cluster that requires backup to tape for all files in the Legal and Accounting shared folders. The customer has sized their IP network to support the application workload, but no additional bandwidth is available.
What should be recommended for the backup solution?

A. Use an Avamar NDMP accelerator and dedicated 10Gb/s network interfaces

B. Use Backup Accelerator nodes for 2-way NDMP

C. Use Backup Accelerator nodes for 3-way NDMP

D. Use SmartConnect Advanced and 10Gb/s network interfaces with LACP

Correct Answer:B

Question 47

A customer plans to deploy N+2:1 protection on a 5-node Isilon cluster. How much capacity will be used to store a 320 KiB file?

A. 320 KiB

B. 448 KiB

C. 576 KiB

D. 640 KiB

Correct Answer:D

Question 48

You are sizing an Isilon Cluster for a new customer. Analyzing their workflow, you determine that they have a small block random read workload.
What is the most important factor to consider when sizing this solution?

A. Headroom

B. IOPS

C. Latency

D. Bandwidth

Correct Answer:B

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