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E20-555 Isilon Solutions and Design Specialist Exam for Technology Architects Questions and Answers

Questions 4

When designing Isilon solutions, what issues should you pay special attention to?

Options:

A.

Avoid being too enthusiastic over the technologyBalancing technical and business requirementsProvide OptionsDesign to meet customer expectations

B.

Workflow DocumentSolutions DocumentApplication typesData strategy

C.

Solutions DocumentBalancing technical and business requirementsProviding many optionsPractical vs. theoretical implementations

D.

Solutions DocumentBalancing technical and business requirementsDownstream hand-offDesign to meet customer expectations

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Questions 5

Which level of control does RBAC provide for cluster administration roles?

Options:

A.

Object level restrictions

B.

Domain specific restrictions

C.

Activity level restrictions

D.

Activity and object level restrictions

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Questions 6

Your customer's site uses an old X-Series cluster, and they are interested in consolidating their two primary workflows. iostat shows that one of the applications is sensitive to latency, while isi statistics indicates sensitivity to disk response times. There are approximately 1000 users accessing 70 TB of file data.

Which node type would you recommend?

Options:

A.

S200

B.

X400

C.

X200

D.

NL400

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Questions 7

An existing customer has two NAS systems providing NFS storage in their main datacenter - one is an Isilon cluster and the second is an array from another vendor. Both systems are four years old, and the customer would like to consolidate the storage into a single solution. According to the customer, both systems support identical workloads with similar performance and utilization, and they want the new solution to support 50% performance growth.

Which method can model the workload requirements, and what multiplier will capture the requirements for the new solution?

Options:

A.

Use isi statistics protocol, and multiply by 3

B.

Use isi statistics drives, and multiply by 1.5

C.

Use isi statistics query, and multiply by 2

D.

Use isi statistics system, and multiply by 3

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Questions 8

A company needs the ability to separate administrative rights from data access rights. Which Isilon feature enables this functionality?

Options:

A.

RBAC

B.

SmartConnect

C.

SmartLock

D.

SmartQuota

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Questions 9

When planning a new cluster using backend leaf-spine topology, what is the maximum number of nodes

supported when using two leaf switches and one spine switch?

Options:

A.

32

B.

44

C.

66

D.

144

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Questions 10

When working with Isilon file pool policies, which file attribute can be applied as a filter?

Options:

A.

Performance

B.

File create date

C.

File type

D.

Permissions

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Questions 11

Refer to the exhibit.

A large hospital chain has approached you to redesign their storage infrastructure. The head of IT believes their requirement is for 60 TB of RAW capacity. The following are the notes from meetings with the department heads.

Which is the minimum cluster configuration that meets the customer's requirements?

Options:

A.

3 NL-Series Nodes using SynqIQ to 3 NL-Series Nodes

B.

3 S-Series Nodes using SmartPools and 3 NL-Series Nodes for Archive

C.

5 S-Series Nodes

D.

4 X-Series Nodes using SynqIQ to 4 NL-Series Nodes

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Questions 12

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 13

A customer wishes to back up their Isilon cluster via NDMP using a software package that supports NDMP

connectivity. The backup process will require the cluster to create a point-in-time copy of the directory to be

backed up.

Which OneFS feature(s) will need to be licensed?

Options:

A.

NDMP only

B.

No additional licenses are required

C.

SnapshotIQ only

D.

SnapshotIQ and NDMP

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Questions 14

Your customer uses an existing Isilon cluster consisting of five NL-Series nodes to source broadcast media files for playback and streaming.The customer reports that the playback pauses and stutters regularly. It has been confirmed that there are no network or playback system issues.

Which of the choices listed is the appropriate choice to address the playback issues?

Options:

A.

Add three or more S-Series Nodes

B.

Upgrade OneFS to the latest version

C.

Enable SmartConnect Advanced

D.

Enable Level 2 Caching

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Questions 15

How are files smaller than 128 KB protected?

Options:

A.

3x mirrored

B.

N+3d:1n

C.

N+2d:1n

D.

2x mirrored

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Questions 16

Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 65% utilized for their video surveillance operations.

They wish to achieve the following:

Upgrade from 1280 x 720 resolution, with a 15 days retention policy, to 2048 x 1536 resolution with a 30 days retention policy.

What is the minimum number of nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?

Options:

A.

6 nodes

B.

10 nodes

C.

14 nodes

D.

18 nodes

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Questions 17

-- Exhibit --

A European Sports TV network is considering Isilon for their Media Edit Storage for their editing workloads. They are also considering Isilon for near-line media archiving.

The network receives XDCAM HD footage which is loaded onto their existing Transcoding Storage platform. New footage that needs to be edited will be transferred from their Transcoding Storage platform to the proposed Media Edit Storage platform at the rate of ten simultaneous XDCAM HD files via FTP. Edited files will be transferred back to the Transcoding Storage platform at the rate of ten simultaneous XDCAM HD files via FTP.

The network currently has 15 Final Cut Pro edit stations, 15 Avid edit stations. Proxy software will be used to allow Isilon to act as the storage for the Final Cut Pro and Avid media. Three of those edit stations will be performing content compositing as needed.

The network expects 70 hours of new content per week, and 50 hours of edited content per week. They intend to keep the new and edited content on the proposed Media Edit Storage as a performance tier for 30 days. They would like to retain all new and edited footage proposed Media Edit Storage as a near-line tier for two years.

In addition to the current workloads, the network expects to implement a new Media Asset Management (MAM) solution and has requested the Isilon cluster be capable of supporting 120 MBps read and 120 MBps write to support the MAM requirements.

-- Exhibit --

Refer to the exhibit.

Based on the described use of the cluster, which node combination is the appropriate choice for the customer’s requirements?

Options:

A.

4 x X400 nodes with 4 x NL 400 nodes

B.

4 x S200 nodes with 4 x NL 400 nodes

C.

4 x X200 nodes with 4 x NL 400 nodes

D.

4 x S200 nodes with 5 x NL 400 nodes

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Questions 18

A customer is making a decision between Isilon and a competitor’s offering. They currently have 100TB of usable capacity and are forecasting 100% growth per year for the next three years, which will require them to lease additional space in their co-located data center. The CFO finds ROI and TCO to be important decision criteria.

Which statement best emphasizes the value of Isilon for this customer?

Options:

A.

Isilon's OneFS data protection policies offer substantially lower overhead than competitive RAID based NAS solutions.

B.

An IDC study found that Isilon requires 95% less down time hours per year compared to other competitors.

C.

The competition cannot offer a scale-out NAS so as capacity is added to the array, performance may degrade.

D.

Isilon's OneFS allows administrators to manage much larger amounts of capacity than competitive offerings.

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Questions 19

Refer to the exhibit.

Which tool was used to create this output and what is the most telling characteristic?

Options:

A.

nfsstat and write-intensive access

B.

iostat and write-intensive access

C.

Read-intensive access and nfsstat

D.

isi_netlogger and moderate metadata read operations

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Questions 20

What is a consideration when designing access zones?

Options:

A.

Authentication providers are restricted to one specific zone

B.

UID/GID ranges should not overlap for providers in the same zone

C.

Access zones cannot overlap the same directories

D.

Share names must be unique between different access zones

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Questions 21

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?

Options:

A.

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

B.

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

C.

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

D.

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

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Questions 22

A customer is looking for a NAS solution to support their read-intensive application.

This solution must meet the following requirements:

  • 1000 users
  • Aggregate bandwidth of 5 GB/s
  • 500 TB of user data
  • Typical latency of 5 ms.

The files are distributed evenly across 10 directories.

Which cluster configuration would best meet these requirements?

Options:

A.

Seven X400 (108 TB) nodes with no SSD

B.

Eight NL400 (96 TB) nodes with 1.6 TB SSD

C.

Eight X400 (96 TB) nodes with 1.6 TB SSD

D.

Twenty-five X200 (30 TB) nodes with 800 GB SSD

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Questions 23

Which cache type contains data blocks from previous read and write transactions?

Options:

A.

Metadata stored on SSDs

B.

L2 cache

C.

L1 cache

D.

L3 cache

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Questions 24

A cluster has user quotas configured for user’s home directories with hard limits and advisory limits set. What would the default setting be for calculating user quotas on the cluster?

Options:

A.

User data and data protection overhead only

B.

User data only

C.

User data, snapshot data, and data protection overhead

D.

User data and snapshot data only

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Questions 25

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

Options:

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Questions 26

Your customer has several departments that want separate access to the cluster so they can use their individual authentication methods. Two of the departments will use NFS and two will use SMB to access the cluster.

What would you recommend?

Options:

A.

Create two separate access zones for the SMB clients, and use the System zone for the NFS clients.

B.

Create separate access zones for both the SMB and NFS clients.

C.

Create two separate access zones for the NFS clients, and use the System zone for the SMB clients.

D.

Have all clients access the System zone, and use RBAC to control authentication.

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Questions 27

Which Isilon OneFS job is responsible for examining the entire file system for inconsistencies and runs manually?

Options:

A.

IntegrityScan

B.

MediaScan

C.

AutoBalance

D.

FlexProtect

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Questions 28

A customer plans to deploy N+2d:1n protection on a 5-node Isilon cluster. How much capacity will be used to store a 320 KiB file?

Options:

A.

512 KiB

B.

448 KiB

C.

576 KiB

D.

640 KiB

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Questions 29

A customer is inquiring about expanding their primary cluster consisting of six S-Series nodes in order to improve performance. They have a second cluster with 11 X-Series nodes. Both clusters leverage 1GbE, but the customer recently installed a 10GbE network that can be utilized. They also have multiple Fibre Channel SAN arrays in their environment.

They have a variety of workloads on each cluster and are in the process of determining which workloads belong on which cluster. They have discovered that one of the workloads- a SQL database that resides on the X-Series node cluster - is experiencing timeouts due to latency. The database vendor has suggested limiting latency to 5ms or less to eliminate these timeouts.

How do you advise the customer?

Options:

A.

Consider migrating data from Isilon to one of their SAN platforms or proposing a new solution to handle the performance requirements of SQL.

B.

Merge the S-Series nodes and X-Series nodes into one cluster, upgrade the 1GbE to 10GbE, and leverage SmartPools to allow for the cluster to determine where data should reside.

C.

Suggest the customer consider leveraging SSDs in the new nodes they purchase and GNA to boost the performance of each cluster.

D.

Recommend they increase the amount of DRAM in the cluster or consider an Accelerator node in order to increase the amount of cache in their cluster.

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Questions 30

How much space is consumed by a 4 KB file when the file data is written to the Isilon cluster?

Options:

A.

4 KB

B.

8 KB

C.

16 KB

D.

32 KB

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Questions 31

A new customer is interested in an Isilon Gen 6 solution to replace their sprawling and outdated Linux

environment. Which client tool should you use to establish an estimate of the workload and pattern as an input to the sizing process?

Options:

A.

tcpdump

B.

lometer

C.

File System Analytics

D.

iostat

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Questions 32

In an Isilon cluster, what is the largest number of nodes that a single file can be striped across?

Options:

A.

10

B.

20

C.

30

D.

40

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Questions 33

You get a call from a customer that has just added 200 user connections to the cluster. They want to know how fast they are writing data with these new users.

What tool would you use to gather this information?

Options:

A.

InsightIQ

B.

Network Monitor

C.

Wireshark

D.

Watch4net

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Questions 34

Independent of protocol, what does Isilon OneFS use to translate identities?

Options:

A.

ID mapping stack

B.

Role-based access control

C.

Access Zone

D.

SmartLock

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Questions 35

You are designing a backup solution using an NDMP redirector and throttler. What is the default threshold

percentage of CPU resources that the throttler limits NDMP to?

Options:

A.

25

B.

45

C.

50

D.

60

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Questions 36

Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for their video surveillance operations.

They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec, with a 30 days retention policy.

How many nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?

Options:

A.

8 nodes

B.

4 nodes

C.

12 nodes

D.

16 nodes

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Questions 37

What is a characteristic of predefined sets of privileges of OneFS built-in administrator roles?

Options:

A.

Can be modified without limitation

B.

Can be nested into other roles

C.

Cannot be modified

D.

Can be modified by selected users

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Questions 38

You need to gather information in order to design an Isilon solution. What are included in the Top 10 qualification questions?

Options:

A.

Required capacity, average file size, growth rate, and network supplier

B.

Current infrastructure, desired protocols, CapEx/OpEx preference, and growth rate

C.

Required capacity, applications in use, desired protocols, and growth rate

D.

Current infrastructure, applications in use, desired protocols, and company turnover

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Questions 39

If Isilon SmartConnect is being configured in a customer environment, which records are required for a supported implementation?

Options:

A.

A SmartConnect Service IP host record and a zone delegation for the SmartConnect zone delegated to the SSIP

B.

An overloaded host record with each SmartConnect zone member's IP address and an SRV record to provide resolution services

C.

A SmartConnect Service IP host record and a corresponding PTR record for each SmartConnect zone

D.

A SOA record for the SmartConnect Service IP and a corresponding CNAME record for each SmartConnect zone

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Questions 40

A potential customer has 540TB Raw capacity of NetApp running in ONTAP 7-Mode. They are willing to let you gather some workload data. Their authentication sources are LDAP and Active Directory. Their users are primarily Windows Clients. They are very interested in Automated Tiering and Large Scale Archives. They are not certain about the workflows from the Marketing Department. The Content Team will only say they need to acquire 300 TB within 90 days. They do not know the average file size or the number of aggregates they are managing.

Which tool(s) would you use next to complete your sizing?

Options:

A.

MiTrend WPA, Autosupport, and PerfCollect

B.

Isilon Cluster Sizing Tool

C.

Wireshark, isi statistics, and iostat

D.

Isilon Insight IQ, OnCommand Insight, and nfsstat

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Questions 41

Which Isilon job has a default priority of '1'?

Options:

A.

MultiScan

B.

Media Scan

C.

FSAnalyze

D.

FlexProtect

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Questions 42

A customer wants to add Unix users to their cluster, and requires that NFS access be fault-tolerant.

What would you recommend?

Options:

A.

Use NFS v4 and dynamic IP addressing with SmartConnect Basic

B.

Use NFS v4 and dynamic IP addressing with SmartConnect Advanced

C.

Use NFS v3 and dynamic IP addressing with SmartConnect Advanced

D.

Use NFS v3 and dynamic IP addressing with SmartConnect Basic

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Questions 43

At which level can retention periods be applied with Isilon SmartLock?

Options:

A.

Directory

B.

Node

C.

File system

D.

Cluster

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Questions 44

-- Exhibit --

A large manufacturing company is an existing Isilon customer with a cluster consisting of four NL400 nodes with 4TB drives. The cluster is using N+2:1 protection level and the file system shows that it is 60% utilized. Home directories and file shares comprise 75% of the existing content and the remainder is inactive deep archive. The company has 1,000 employees using Windows and Mac clients participating in a single Active Directory (AD) forest.

During a meeting with the CIO and Director of IT you discuss the company’s recent acquisition – an engineering firm that specializes in Computer Aided Design (CAD). The engineering firm has 400 UNIX workstations that produce technical drawings which are currently stored on another vendor’s SAN solution. The all UNIX environment uses NIS for authentication and name resolution. They do not currently use DNS or LDAP. The engineering company has an old storage system that has been experiencing problems and the CIO would like you to migrate the data onto the Isilon cluster. The CIO would like to eliminate all tape and recover the data onto disk.

The CIO is concerned about security of the company’s intellectual property, especially with the rapid adoption of mobile devices and external cloud content sharing services such as DropBox, Egnyte, and SugarSync. They would like to implement an alternative that provides external file sharing and mobile device synchronization while maintaining security control over the company’s data.

The Director of IT reports that users are storing non-work related content on the Isilon cluster. They would like to limit the amount of capacity that each user can consume in their home directory and want to ensure you provide the capability to easily visualize which users are over their allotment.The company’s Windows users currently leverage Windows Shadow Copy to recover files that have been accidentally deleted. The IT department wants to ensure that Mac and incoming UNIX clients have the same functionality.

The Director of IT also mentions that users are reporting slow response times when browsing their home directories and shared folders. They are concerned that Isilon cannot scale to support their combined requirements.

-- Exhibit --

The CIO approaches you with a new requirement. They would like to reuse the tape library that was previously used for archiving to now be used to back up some of their data.

What do you recommend to the Director of IT as the best architecture to achieve this goal?

Options:

A.

Connect the Tape Library via Fibre Channel to the Isilon cluster and use a third party backup software to initiate an NDMP backup to an accelerator.

B.

Implement a Backup Accelerator and use the internal backup software within the Isilon cluster to move data to the tape library.

C.

Use a Backup Accelerator with SyncIQ to push the data to the tape library via the Fibre Channel ports on the accelerator.

D.

Use a third party backup software and have the Isilon cluster convert the data to LTFS so it can be stored to the tape library.

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Questions 45

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?

Options:

A.

VNX for image cache; Isilon NL-Series nodes for image archive

B.

Isilon A-Series nodes for image cache; Isilon NL-Series nodes for image archive

C.

Isilon NL-Series nodes for image cache and image archive

D.

VNX for image cache and image archive

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Questions 46

You are reviewing an opportunity with a trusted advisor. You both discover gaps in the initial solution design.

Each iterative discussion with the customer helps you define the solution better. The documents produced capture the customer's requirements.

What else needs to occur to refine the sizing considerations?

Options:

A.

Validate the Workflow Profile Assessment and test the solution against your findings.

B.

Review you assumptions and ask the customer what business issue you're solving.

C.

Provide the CIO with the findings and gain commitment to a Proof of Concept.

D.

Complete your Solution Design Document and forward to EMC consulting.

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Questions 47

While validating the value (VTV) with a large educational customer, they have decided they would like to add a Disaster Recovery (DR) site to their existing Isilon environment. The existing cluster contains six X-Series nodes. They plan to have all workflows replicated to the DR site and both clusters will have identical shares, exports, and user authentication. The customer would like to test DR failover every six months by running their production environment from the DR site.

What would you recommend for the DR solution?

Options:

A.

SyncIQ and identical cluster at the DR site

B.

SmartConnect and NL-Series nodes at the primary site

C.

SyncIQ and NL-Series nodes at the DR site

D.

Equal number of S-Series nodes at the primary site

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Questions 48

-- Exhibit --

A large manufacturing company is an existing Isilon customer with a cluster consisting of four NL400 nodes with 4TB drives. The cluster is using N+2:1 protection level and the file system shows that it is 60% utilized. Home directories and file shares comprise 75% of the existing content and the remainder is inactive deep archive. The company has 1,000 employees using Windows and Mac clients participating in a single Active Directory (AD) forest.

During a meeting with the CIO and Director of IT you discuss the company’s recent acquisition – an engineering firm that specializes in Computer Aided Design (CAD). The engineering firm has 400 UNIX workstations that produce technical drawings which are currently stored on another vendor’s SAN solution. The all UNIX environment uses NIS for authentication and name resolution. They do not currently use DNS or LDAP. The engineering company has an old storage system that has been experiencing problems and the CIO would like you to migrate the data onto the Isilon cluster. The CIO would like to eliminate all tape and recover the data onto disk.

The CIO is concerned about security of the company’s intellectual property, especially with the rapid adoption of mobile devices and external cloud content sharing services such as DropBox, Egnyte, and SugarSync. They would like to implement an alternative that provides external file sharing and mobile device synchronization while maintaining security control over the company’s data.

The Director of IT reports that users are storing non-work related content on the Isilon cluster. They would like to limit the amount of capacity that each user can consume in their home directory and want to ensure you provide the capability to easily visualize which users are over their allotment.The company’s Windows users currently leverage Windows Shadow Copy to recover files that have been accidentally deleted. The IT department wants to ensure that Mac and incoming UNIX clients have the same functionality.

The Director of IT also mentions that users are reporting slow response times when browsing their home directories and shared folders. They are concerned that Isilon cannot scale to support their combined requirements.

-- Exhibit --

Based on the meeting with the customer, which Isilon cluster configuration would you recommend?

Options:

A.

4 x X400 nodes with 2 x SSD and 34 x 4TB drives1 x Additional NL400

B.

6 x X400 nodes with 36 x 4TB drives1 x Backup Accelerator

C.

4 x NL400 nodes with 36 x 4TB drives

D.

9 x S200 nodes with 2 x SSD and 22 x 900GB SAS

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Questions 49

A customer is evaluating Isilon and Pure FlashBlade solutions. Which protocol is available for both solutions?

Options:

A.

NFSv3

B.

SMBv3

C.

FTP

D.

HDFS

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Questions 50

A customer is considering moving their NAS data over to Isilon systems. They want to know what limitations Isilon has regarding snapshot on the directory level.

What explanation can be provided to the customer?

Options:

A.

Limit of 2048 snapshots per directory

B.

No limits on the number of snapshots per directory

C.

Limit of 2048 snapshots per cluster but not on the directory level

D.

Hard limit of 1024 snapshots per directory

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Questions 51

A customer is considering the use of RBAC to centrally administer user accounts that can log into multiple Isilon clusters. What is a potential capability for the customer?

Options:

A.

Assign users only custom roles with privileges to perform specific administrative tasks

B.

Assign individual privileges for specific administrative tasks directly to user accounts

C.

Assign users built-in or custom roles with privileges to perform specific administrative tasks

D.

Assign users only built-in roles with privileges to perform specific administrative tasks

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Exam Code: E20-555
Exam Name: Isilon Solutions and Design Specialist Exam for Technology Architects
Last Update: Apr 27, 2024
Questions: 344
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