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EMC E20-554 Exam Syllabus Topics:

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. You are working with a healthcare company that is interested in replacing all the backend storage for their PACS system.In general, how should the solution be presented to the customer?

A) Isilon A-Series nodes for image cache; Isilon NL-Series nodes for image archive
B) VNX for image cache; Isilon NL-Series nodes for image archive
C) VNX for image cache and image archive
D) Isilon NL-Series nodes for image cache and image archive

2. You will be meeting with the Corporate Security Team as part of the implementation planning for a new Isilon cluster deployment. The Lead Security Analyst has asked you to discuss the Authentication Sources on your Isilon Cluster.
What customer questions regarding Isilon-supported Authentication Sources do you need to be prepared to answer?

A) What mechanism are you using for NFS authentication?
Do you have multiple AD domain support?
What versions of LDAP are supported?
B) What mechanism are you using for NFS authentication?
Do you support Novell Directory Services?
What implementations of LDAP are supported?
C) Is the cluster X.400 compliant?
What firewall rules are in place to prevent data leakage?
Is there a audit trail for access zone configuration changes?
D) Are you using File Services for UNIX in your AD environment?
Do you support NIS+ for NFS authentication?
Do you support multiple Access Zones connecting to the AD Domain?

3. A hospital is considering using Isilon to store their long-term archive data for their PACS application. They currently have two million 17 MB studies. They expect capacity requirements to be 50% compounded growth per year. They plan to use N+2:1 protection, and would like this sized for three years of growth.Which minimum cluster configuration would meet this customer's environment?

A) Four NL400 (2 TB drive) nodes
B) Three X400 (3 TB drive) nodes
C) Five NL400 (1 TB drive) nodes
D) Five X200 (3 TB drive) nodes

4. A customer plans to consolidate 200 TB of digital images and video content. Performance is important for recently created files. However, the customer wants any content that has not been accessed within 30 days to be stored in the cluster at a much lower cost because performance is no longer critical.Which Isilon configuration should be recommended?

A) NL-Series nodes and SmartLock
B) S-Series nodes, X-Series nodes, and SmartPools
C) X-Series nodes, NL-Series nodes, and SmartPools
D) X-Series nodes and SmartQuotas

5. A potential customer requires 4 PB of usable capacity to store media files. The workloads are a combination of streaming video delivery and long term archive of video assets.
There is very little space available in the customer's datacenter, so physical density is very important. The customer is concerned about performance impact and potential data loss when using 3 TB or larger drives.
What Isilon capabilities can address the customer's concerns?

A) Isilon nodes have more drives per rack unit so fewer shelves are required.
Proactive hot sparing eliminates most drive rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
B) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Data redistribution runs faster with more nodes in the cluster.
C) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
Data recovery is consistent, taking the same amount of time regardless of cluster size.
Isilon 'short strokes' 4TB drives to reduce rebuild time.
D) N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Proactive hot sparing eliminates most drive rebuilds.
Endurant Cache reduces the overhead for write operations.

Solutions: