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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.

E20-357

Explanation/Reference:


QUESTION 110

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


Explanation/Reference:


QUESTION 111

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


Explanation/Reference:


QUESTION 112

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

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  1. N+1

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


Correct Answer: C Section: (none) Explanation


Explanation/Reference:


QUESTION 113 39

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


Explanation/Reference:


QUESTION 114

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


Explanation/Reference:


QUESTION 115

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


Explanation/Reference:


QUESTION 116

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

cluster?


  1. 10

  2. 12

  3. 13

  4. 17

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Correct Answer: C Section: (none) Explanation


Explanation/Reference:


QUESTION 117

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


Explanation/Reference:


QUESTION 118

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


Explanation/Reference:


QUESTION 119

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

    41

  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


Explanation/Reference:


QUESTION 120

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?

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  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


Explanation/Reference:


QUESTION 121

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

42


Correct Answer: C

Section: (none) Explanation


Explanation/Reference:


QUESTION 122

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


Explanation/Reference:

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43

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