EMC E20-554 Actual Tests : Isilon Design Specialist Exam for Technology Architects

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EMC E20-554 Exam Syllabus Topics:

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. You have gathered information from your customer about their current NAS environment. They indicated they are having performance and time-out issues with their clients accessing the storage. Currently over 5000 clients are simultaneously accessing the NAS; however, this will double in the next year.
Based on this information, what recommendations for a new Isilon cluster would you give to the customer based on this information?

A) Create a six node X400 cluster today. As additional clients are added, add additional X400 nodes for them.
B) Create a three node cluster today. As more clients are added, add three additional nodes each time for 1000 clients.
C) Create a five node X400 cluster today. As more clients are added, add a Performance Accelerator node for every 1000 clients.
D) Create a seven node X400 cluster today. You will not need to purchase additional nodes as more clients are added.

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

3. Your customer's initial use case was Home Directories. They implemented the cluster with four 1Gbps ports and LACP. They are planning to expand their cluster to support their core file services. They plan to upgrade their network infrastructure to 10 GbE to facilitate this.
What are two design impacts this change will have?

A) Maximum performance is obtained by only using a single 10GbE interface per node. LACP and multiple links may be used to increase redundancy, but will not provide more overall performance to the system
B) Dual 10GbE ports on each node will enable throughput of 20Gbps. Only connect half of the nodes to the network.
C) LACP and multiple links may be used to increase redundancy, but will not provide more overall
performance to the system.
FCoE should be considered for the External Network Ports on the nodes.
D) Maximum performance is obtained by only using a single 10GbE interface per node. Isilon can support up to 400MB/s per node

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

5. A four-node Isilon cluster is being used in a Hadoop workflow with a parity protection of N+2:1. The HDFS protocol has been enabled and is being used to access data.
According to EMC best practices, how many additional many additional copies of data are written into the Isilon cluster using HDFS?

A) Two
B) One
C) None
D) Three

Solutions: