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Free EMC E20-555 Practice Exam with Questions & Answers | Set: 8

Questions 71

A potential customer is considering replacing a four year old, Linux-based NFS server with 40TB of usable capacity. The existing system supports home directories, an internal website, and a content repository for the customer's content management system. The customer is concerned about performance of any new solution because they expect to double workload in the content management system.

What tools can be used to collect performance data needed to size the new solution?

Options:
A.

Iostat and nfsstat

B.

Perfmon and sysstat

C.

Isi statistics and Wireshark

D.

Syslog and vmstat

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Questions 72

Which tool is used to perform a cluster-wide kernel configuration change on an Isilon Gen 6 cluster?

Options:
A.

sysct1

B.

isi_tardis

C.

isi_for_array

D.

gconfig

Questions 73

Your customer has an Isilon Gen 6 cluster with eight H400 nodes. During an unexpected power outage some

of the nodes go offline simultaneously.

How many nodes need to remain up and communicating over the backend network to maintain a quorum in

the cluster and still enable write access to the OneFS file system?

Options:
A.

2

B.

4

C.

5

D.

6

Questions 74

A customer has grown 2 PB in the last year. The cluster performs well most times of the day, but occasionally during the day, the customer notices a decrease in performance. You have been told that ‘tree-deletes’ are taking too long and can only be run on weekends.

What would you recommend to speed up the ‘tree-deletes’?

Options:
A.

Add an SSD node tier for metadata to account for at least 2% of RAW capacity

B.

Use an A100 node for added CPU performance to help with ‘tree-deletes.’

C.

Add 20% more nodes to the cluster to help with degraded performance.

D.

Add an SSD tier for metadata, ensuring all nodes have SSDs.

Questions 75

You have had several meetings with an existing EMC VMAX customer. They have agreed that they would like to review an initial Isilon Solution for unstructured data used by the Product Development Team. All production is managed through a Global Enterprise Resource Planning system based in Germany. They require 600TiB of usable capacity. The File System must be accessible from Windows and Linux High-End Workstations. The files are generally not accessed after 120 days, and they would like automated tiering.

Which questions about architectural integration will impact the solution design?

Options:
A.

• What Enterprise Resource Planning platform are they using in manufacturing?• What is their Recovery Point Objective?• What is their Archival Strategy?

B.

• How many data centers do they have?• Will their Network Infrastructure support implementing Isilon?• What Enterprise Resource Planning platform are they using in manufacturing?

C.

• How many clients will access the File System?• Will their VDI clients access the Isilon Cluster?• What is the DR plan for the ERP System?

D.

• What non-sizing-specific factors in the customer’s environment could impede integration of the Isilon solution?• What applications are they using?• What are your priorities among performance, scalability, or availability?

Questions 76

A customer has a supported cluster with the maximum protection level. How many simultaneous node component failures can Isilon OneFS sustain while still allowing full access to the entire file system and dataset?

Options:
A.

1

B.

2

C.

3

D.

4

Questions 77

What is the correct sequence of events in a SyncIQ failover procedure after a failure occurs in the source Isilon cluster?

E20-555 Question 77

Options:
Questions 78

When using an N+2:1 protection policy on a 7-node Isilon cluster, how much capacity will be used to store a 510 KiB file?

Options:
A.

638 KiB

B.

640 KiB

C.

766 KiB

D.

768 KiB

Questions 79

An Isilon has 6 X410 nodes and 4 NL410 nodes. How many job engine directors does the cluster have?

Options:
A.

4

B.

6

C.

10

D.

20

Questions 80

A Media and Entertainment company is considering changing from 2K resolution to 4K resolution. They will continue to use the DNxHD 220 codec.

Assuming everything else stays the same, how will this change affect storage?

Options:
A.

Storage will be half as large

B.

Storage requirements will not change

C.

Storage will be twice as large

D.

Storage will be four times as large

Exam Code: E20-555
Certification Provider: EMC
Exam Name: Isilon Solutions and Design Specialist Exam for Technology Architects
Last Update: Feb 17, 2025
Questions: 344

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