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E20-357 - Isilon Solutions Specialist for Implementation Engineers - Dump Information

Vendor Name : EMC
Exam Code : E20-357
Exam Name : Isilon Solutions Specialist for Implementation Engineers
Questions and Answers : 122 Q & A
Updated On : March 22, 2017
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E20-357 Demo and Sample

Note: Answers are below each question.
Samples are taken from full version.




Which type of data is stored in an Isilon node's Endurant Cache?

  1. Write

  2. Volume

  3. Read

  4. Protection

Correct Answer: A Section: (none) Explanation



When configuring data protection at +2:1 on a 6-node Isilon cluster, what is the overhead impact on the

physical capacity?

  1. 1/2

  2. 1/3 C. 1/4 D. 1/5

Correct Answer: D Section: (none) Explanation



Which Isilon OneFS protection level allows you to withstand two drive failures but no more than one complete node failure?

Complete collection of E20-357 Exam's Question and answers.

  1. N+1

  2. N+2 C. N+2:1 D. N+3:1

Correct Answer: C Section: (none) Explanation



If a customer has 10 nodes in a cluster with N+2 protection, what is the minimum number of nodes required to be online and in communication with one another to satisfy quorum?

  1. 4

  2. 5

  3. 6

  4. 7

Correct Answer: C Section: (none) Explanation



What is the minimum number of nodes in an Isilon cluster for N+2 protection?

  1. 3

  2. 5

  3. 6

  4. 9

Correct Answer: B Section: (none) Explanation



Given a 7-node Isilon cluster configured with an N+2:1 protection level, how many nodes can be offline with the

data accessible and fully writeable?

  1. One

  2. Two

  3. Three

  4. None; all nodes must be online

Correct Answer: A Section: (none) Explanation



At a minimum, how many connected and available nodes are required to maintain quorum in a 25- node


  1. 10

  2. 12

  3. 13

  4. 17

Complete collection of E20-357 Exam's Question an4d0 answers.

Correct Answer: C Section: (none) Explanation



An Isilon customer has experienced a node failure which requires that the affected node be permanently removed from the cluster. Upon failure of the node, what will occur in the cluster?

  1. OneFS will assume it is a temporary failure and the data will not be protected at the appropriate levels.

  2. Cluster will detect the node failure and automatically begin the SmartFail process.

  3. FlexProtect will be activated and data will be protected at the appropriate levels.

  4. Nothing. When data protection levels are set appropriately, OneFS will always protect data without manual interaction.

Correct Answer: A Section: (none) Explanation



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?

  1. IOPS

  2. Bandwidth

  3. Latency

  4. Headroom

Correct Answer: A Section: (none) Explanation



Click on the calculator icon. You have been invited to meet with the Social Media and Marketing Department and gather requirements for a potential File System Project. They primarily use CIFS and are considering deploying a Hadoop cluster to analyze customer demographic data. The Senior Systems Engineer thinks they will need 2PB of usable capacity. What would you do to gain an understanding of the customer's environment to qualify and develop the opportunity?

  1. Send the Social Media Team a sizing and features spreadsheet to complete; download the OneFS Architectural White Paper for them, and create a Logical System diagram in Visio

  2. Create a cluster configuration specifying HDFS, NFS, and CIFS protocols; select 19 x X400 nodes with 144TB per node, and Enhanced Support

  3. Request the Windows Systems Administration Team run a PerfMon analysis on the Marketing Servers, consider adding 75 x 3TB drives to your VNX 5500, and contact the DBA Team for their help


  4. Ask them to identify how the current data is accessed, where the data is accessed from, and who is

accessing the data

Correct Answer: D Section: (none) Explanation



Refer to the exhibit. You are analyzing a customer's existing Isilon environment using InsightIQ in order to expand the cluster. When examining the protocol data, you see the output as shown.

What does the data tell you about the workload?

Complete collection of E20-357 Exam's Question and answers.

  1. It is mostly sequential reads

  2. It is meta data intensive

  3. It uses large read requests

  4. It contains mostly random writes

Correct Answer: B Section: (none) Explanation



A customer's cluster contains three X200 (24 GB RAM, 3 TB drives) nodes, and three X400 (48 GB RAM, 1 TB drives) nodes. All nodes are configured in a single pool. All data is protected at N+2. After upgrading OneFS to 7.0, the Isilon Web interface indicates that files are not fully protected.

  1. Add 24 GB RAM to each of the X200 nodes

  2. Recreate the original pool using the Isilon Web interface

  3. Add two X200 nodes and two X400 nodes

  4. Recreate the original pool using the command line interface


Correct Answer: C

Section: (none) Explanation



You are asked to size a cluster for a file sharing environment. nfsstat indicates that 75% of the requests are namespace operations (e.g., GETADDR, SETADDR). There will be 8,000 active Linux users, connecting over NFS?

  1. Five X400 (66 TB) 48 GB RAM, 1.2 TB SSD, N+2:1

  2. Eight X200 (27 TB) 12 GB RAM, 600 GB SSD, N+2

  3. Eight X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1

  4. Eight X200 (36 TB) 48 GB RAM, no SSD, N+2:1

Correct Answer: C Section: (none) Explanation


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