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EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. Your customer purchased an Isilon cluster with eight X400 nodes for Home Directories. Your follow-up discussions have uncovered an opportunity to expand the cluster to support the Legal Department. As you prepare to complete the Workflow Profile Document, you meet with the customer to discuss data protection.
Which key areas should you address?

A) Protocols (SMB, NFS, FTP, HTTP, HDFS) Authentication and Directory Services Performance and latency concerns
B) WORM requirements Network ports for replication Snapshots for user restores
C) Default cluster protection level Additional directory level protections Snapshots and replication
D) Default cluster protection level Backup windows and processes Concurrency of user access

2. Your customer has several departments that want separate access to the cluster so they can use their individual authentication methods. Two of the departments will use NFS and two will use SMB to access the cluster.What would you recommend?

A) Create separate Access Zones for both the SMB and NFS clients.
B) Create two separate Access Zones for the SMB clients, and use the System Zone for the NFS clients.
C) Have all clients access the System Zone, and use RBAC to control authentication.
D) Create two separate Access Zones for the NFS clients, and use the System Zone for the SMB clients.

3. A potential customer requires 800 TB of usable capacity to store medical images for their network of health clinics. The IT department has limited staff and currently manages four storage arrays from other vendors. During a meeting with the Director of IT you learn that the company is considering a solution from a competitor of EMC using two of the existing arrays and two new arrays.Which Isilon capabilities would show a better ROI for the customer?

A) Isilon has 6%-12% less filesystem overhead than traditional clustered filesystem solutions.
With a single filesystem and virtual capacity for drive and node failures, Isilon utilization is typically
80% or higher.
Isilon utilization is typically 80% or higher due to use of a single filesystem and virtual capacity for
drive and node failures.
B) Forward Error Correction overhead is 7% lower than traditional RAID.
Isilon has 6%-12% less filesystem overhead than traditional clustered filesystem solutions.
According to an IDC study, Isilon improves IT productivity by nearly 50% compared to traditional competitors.
C) Isilon has 15%-20% less overhead than traditional clustered filesystems.
According to an IDC study, Isilon utilization is nearly 50% higher than traditional competitors.
Isilon QOS headroom and multiple node pools ensures consistent performance up to 80%
utilization.
D) With a single filesystem and virtual capacity for drive and node failures, Isilon utilization is typically
80% or higher.
OneFS compression results in higher effective capacity within the cluster.
Traditional clustered filesystems require 4%-10% internal overhead compared to Isilon virtual
capacity.

4. A company wants to reduce the footprint in their data center. They recently completed a proof of concept with Hadoop using Direct Attached Storage (DAS) for their Big Data initiative. You have determined that incorporating an Isilon cluster into their Hadoop environment would help in reducing this footprint.Which Hadoop components can be consolidated onto the Isilon cluster to reduce the footprint?

A) NameNode and TaskTracker
B) DataNode and NameNode
C) DataNode and ComputeNode
D) ComputeNode and NameNode

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

Solutions: