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

Questions 4

By default, which method is used by Isilon OneFS for SSDs?

Options:

A.

Metadata read acceleration

B.

Metadata read/write acceleration

C.

Data on SSDs

D.

Avoid SSDs

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Questions 5

A customer has a requirement for a new solution to handle their growing storage requirements. The solution should have the ability to cover storage needs for the next three years. The environment consists of 100 TBs of file system data spread across five file systems. On average, the file systems grow 1 TB a month. In addition, they have a large VMware cluster supporting 200 VMs and a highly transactional database.

The customer wants the solution to offer good performance, scalability, manageability, and be cost-effective. The sales team is looking to you to recommend a solution.

Which recommendation will meet the customer’s requirements?

Options:

A.

VNX for DB and VMware workloads, and Isilon for file system data

B.

Isilon scale-out and cluster as required

C.

VNX Unified platform with FAST Cache

D.

VMAX with FAST VP and a NAS Gateway

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Questions 6

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 7

How are clients, L1 cache, L2 cache, and disks interconnected?

Options:

A.

Clients connect to L1 Cache and write coalescer

L1 cache is connected to L2 on the local node

L2 cache connects to disks on all nodes via internal network

B.

Clients connect to L2 Cache and write coalescer

L1 cache connects to disks on all nodes via internal network

L2 cache is connected to L1 on the local node

C.

Clients connect to L2 Cache and write coalescer

L1 cache connects to disk on its local node

L2 cache is connected to L1 on all nodes via internal network

D.

Clients connect to L1 Cache and write coalescer

L1 cache is connected to L2 on all nodes via internal network

L2 cache connects to disks on its local node

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Questions 8

A customer currently has 10 HPC nodes. They plan to purchase a 5-node Isilon X400 cluster for an HPC application running on Linux. They will persistent mount the Isilon cluster through NFSv3.

Which recommended configuration addresses the customer's requirements for high availability and throughput?

Options:

A.

SmartConnect Advanced with Round Robin connection balancing and dynamic addressing

B.

SmartConnect Basic with Round Robin connection balancing and dynamic addressing

C.

SmartConnect Advanced with Network Throughput connection balancing and dynamic addressing

D.

SmartConnect Advanced with Round Robin connection balancing and static addressing

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Questions 9

You have scheduled a meeting with a prospective customer in the Life Sciences vertical market. Which Isilon features should be presented to them?

Options:

A.

SmartLock, HDFS, SmartPools and SmartQuotas

B.

SmartPools, HDFS, 10 GigE support and SmartQuotas

C.

SyncIQ, SmartLock, HDFS and SmartConnect

D.

SyncIQ, Antivirus, 10 GigE support and HDFS

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Questions 10

A company wants to have their new Gen 6 Isilon cluster benchmarked for a UNIX environment. What commonly available open source tool is typically used to test an Isilon cluster’s performance for this environment?

Options:

A.

sar

B.

Perfmon

C.

IOZone

D.

Iometer

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Questions 11

Which SmartConnect policies are used for workloads that have short lived connections such as HTTP and FTP?

Options:

A.

Connection count and round robin

B.

Round robin and CPU usage

C.

Throughput and CPU usage

D.

Throughput and connection count

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Questions 12

Match each tool with the task for which the tool is used.

Options:

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Questions 13

-- Exhibit --

We have been engaged by a research hospital to help upgrade their Isilon installation. They currently have 12 previous generation Isilon nodes with 200TB of capacity and run on a 1Gbps network. They currently have 6 Illumina Hi-Seq Sequencers and an HPC cluster to process data. They would like to expand Isilon to 2PB of active data and 1PB of archive data. They use a third party data and metadata management service (IRODs) to stage data for analysis. The Isilon cluster is mainly used for analysis work with the HPC cluster.

-- Exhibit --

Currently, the workflows are being limited by the network access to the Isilon cluster.

What would result in the fastest possible network throughput?

Options:

A.

Move analysis infrastructure to dedicated 10G network.

B.

Add four A-Series accelerator nodes.

C.

Use LACP to aggregate the network connections.

D.

Implement jumbo frames.

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Questions 14

A healthcare services provider is implementing an X-Series cluster. Currently they have approximately 200 customers and they are growing at 30% per year. They have 200 TB of storage utilized. Health Insurance Portability and Accountability Act (HIPAA) regulations require they keep all patient data for seven (7) years. They would like to keep all genomic sequencing data stored with N+3 protection, not to exceed 75% utilization.

What is the minimum initial configuration you would recommend?

Options:

A.

13 X400 nodes; 1 TB drives

B.

6 X400 nodes; 4 TB drives

C.

13 X200 nodes; 3 TB drives

D.

7 X400 nodes; 1 TB drives

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Questions 15

When creating a FilePool policy via the OneFS WebUI, what is the maximum allowed number of condition

blocks?

Options:

A.

1

B.

3

C.

8

D.

No limit

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Questions 16

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 17

Refer to the exhibit.

You want to add redundancy to your network configuration, rather than performance. You have configured all interfaces into the default SmartConnect zone.

How should you configure the switches and Isilon networking to provide your desired network redundancy?

Options:

A.

Configure the switch ports for LACP and use LACP aggregation for subnet0:pool0.

B.

Configure the switch ports as access points and use LACP aggregation for subnet0:pool0.

C.

Configure the switch ports for LACP and use FEC aggregation for subnet0:pool0.

D.

Configure the switch ports as access points, bond ext-0 and ext-1 on all nodes and use Active/Passive aggregation for subnet0:pool0.

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Questions 18

Your customer is a major metropolitan newspaper. Your previous discussion centered on their storage requirements, and you asked them some of the Top Ten questions.

They responded: "Well, it's not the prettiest or most high-tech solution...we use Secure FTP (SFTP) to upload the stories and images and put them in a workflow that formats them for printing in the newspaper." "What really worries us is the fact that our Storage Array from your competitor is going out of maintenance in 120 days, and they are dropping support for Secure FTP. This isn't even considered in our D/R Plan. Do you have a better solution with Isilon?"

Which top 10 questions led to this information?

Options:

A.

How much capacity are you looking for?What applications access this storage?What risks are there in your current infrastructure?

B.

What is your network infrastructure like?How many Storage Fabrics do you have?What is your Disaster Plan for the Newspaper?

C.

What does your infrastructure look like?What applications access this storage?What protocols and version number?

D.

What filesystems, SMB, NFS, or other are you using?What does your infrastructure look like?How do you manage your File Systems?

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Questions 19

What determines the number of job engine workers assigned to a task?

Options:

A.

Job task

B.

Job priority

C.

Job impact policy

D.

Job phase

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Questions 20

There is a need to carry out a tech refresh of an Isilon cluster. Old nodes must be removed because of space constrains in the data center. What methodology is least disruptive and will retain the file system structure, configuration, data, and DNS information?

Options:

A.

Install the new nodes as a new cluster and use SyncIQ to replicate the data to the new nodes

B.

Add the new nodes to the cluster and use SmartFail to move the data to the new nodes

C.

Install new nodes into the cluster and use SyncIQ to replicate the data from the old to the new nodes

D.

Install the new modes into the cluster and migrate using a host-based utility

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Questions 21

Using Isilon SnapshotIQ, how many snapshots can be created at the directory level?

Options:

A.

8

B.

96

C.

256

D.

1024

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Questions 22

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 23

Which Isilon SmartLock version uses an NTP server to keep track of the set retention periods placed on a directory?

Options:

A.

Standard with WORM

B.

Standard No WORM

C.

Enterprise

D.

Compliance

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Questions 24

Your customer purchased an Isilon cluster with eight X400 nodes for Home Directories. Your follow-up discussions have uncovered an opportunity to expand the cluster to support the Legal Department. As you prepare to complete the Workflow Profile Document, you meet with the customer to discuss data protection.

Which key areas should you address?

Options:

A.

Default Cluster Protection LevelAdditional Directory Level ProtectionsSnapshots and Replication

B.

WORM requirementsNetwork ports for replicationSnapshots for user restores

C.

Default Cluster Protection LevelBackup Windows and ProcessesConcurrency of user access

D.

Protocols (SMB, NFS, FTP, HTTP, HDFS)Authentication and Directory ServicesPerformance and Latency Concerns

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Questions 25

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

Options:

A.

320 KiB

B.

448 KiB

C.

576 KiB

D.

640 KiB

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Questions 26

Which OneFS roles should be assigned to an Active Directory group for login privileges equivalent to the

‘admin’ local account?

Options:

A.

System Admin and Security Admin

B.

System Admin, BackupAdmin, and StatisticsAdmin

C.

System Admin, AuditAdmin, and BackupAdmin

D.

Security Admin and AuditAdmin

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Questions 27

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 28

Which node type provides CPU, memory, and Fibre Channel connectivity?

Options:

A.

Backup Accelerator

B.

Performance Accelerator

C.

X-Series

D.

NL-Series

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Questions 29

You have received a critical task that requires immediate analysis of system performance. Captured data will later be processed by MiTrend, but a current assessment is not available.

Which utility will quickly provide IOPS associated with reads and writes, CPU utilization, and I/O scheduler wait time?

Options:

A.

tcpdump

B.

iostat

C.

Wireshark

D.

NFSstat

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Questions 30

Where are file system operations initiated on an Isilon node?

Options:

A.

L1

B.

NVRAM

C.

L2

D.

Disk

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Questions 31

Which balancing option is provided by SmartConnect Basic?

Options:

A.

Round-Robin

B.

Throughput

C.

CPU usage

D.

Connection count

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Questions 32

What is the smallest unit of manageable storage within Isilon SmartPools?

Options:

A.

SSD pool

B.

Node pool

C.

Disk pool

D.

File pool

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Questions 33

What accurately represents Isilon SyncIQ Automated Failover?

Options:

A.

SmartLock directories will automatically failover

B.

Replication relationships will change upon failover

C.

No changes in Identity Management will be needed

D.

Target directories will not need to be shared with clients

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Questions 34

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 35

An Isilon cluster component has the following characteristics:

  • Spans 3 - 40 nodes
  • Logical grouping of drives
  • Automatically assigned
  • Intelligently distributes disks to manage performance

Which cluster component is described?

Options:

A.

Disk pool

B.

Node pool

C.

Smart pool

D.

SSD pool

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Questions 36

If a customer experiences a node failure while at 90% capacity, what is the fastest way of replacing the node in an Isilon cluster?

Options:

A.

Perform Disk Tango

B.

Perform a disk SmartFail

C.

Perform FlexProtect

D.

Perform a node SmartFail

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Questions 37

What is the maximum number of data stripes in a Gen 6 Isilon?

Options:

A.

16

B.

20

C.

128

D.

144

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Questions 38

There is a concern that there are not enough physical switch ports available for the Isilon cluster in a new implementation with SMB and ICAP requirements. What course of action should be taken?

Options:

A.

Team the NICs across the nodes and just add one connection to minimize the ports required.

B.

The customer needs to provide more switch ports for the implementation

C.

Create a SmartConnect zone across all ports but do not connect all of them

D.

Leave the archival nodes off the external network switch to save switch ports

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Questions 39

You set up a meeting to gather information on a new project with the IT manager and plan to use a workflow profile assessment (WPA) to document the requirements.

Why is it recommended to talk to as many stakeholders as possible?

Options:

A.

Helps downstream personnel, such as implementation and delivery, to have a clearer understanding of the requirements.

B.

Completing this document gives sales a list of who the stakeholders are at customer site.

C.

Using workflow profile enables sales to take this information to EMC consulting for review to validate the configuration.

D.

Using the WPA tool will give you the best "big picture" to see things such as block size, de-dupe, file size and volumes.

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Questions 40

What is the recommended namespace path for the access zone on a new Isilon cluster with SyncIQ license?

Options:

A.

/ifs//data

B.

/ifs///data

C.

/ifs//data

D.

/ifs///data

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Questions 41

Which data access pattern uses moderate prefetching?

Options:

A.

Streaming

B.

Mirroring

C.

Random

D.

Concurrency

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Questions 42

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 43

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.

Which cluster configuration would you recommend?

Options:

A.

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

B.

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

C.

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

D.

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

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Questions 44

What is the minimum size and the maximum size, respectively, of a single pre-Gen 6 node pool?

Options:

A.

3 and 144

B.

3 and 288

C.

4 and 144

D.

4 and 288

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Questions 45

An architect is designing a solution for a new customer. The customer is going to use the cluster to store a

large number of files that will be accessed by many users.

What IO optimization should be used and what kind of prefetching will take place?

Options:

A.

Concurrency, aggressive prefetching

B.

Random, aggressive prefetching

C.

Concurrency, moderate prefetching

D.

Concurrency, no prefetching

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Questions 46

What is the sector size of an Isilon 8 TB drive?

Options:

A.

512 bytes

B.

1024 bytes

C.

2048 bytes

D.

4096 bytes

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Questions 47

Where does Endurant Cache stage its write cache?

Options:

A.

SSD

B.

DISK

C.

NVRAM

D.

DRAM

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Questions 48

An Isilon customer is experiencing less than expected performance and poor space utilization with their cluster. They are using the X400 nodes with an N+2d:1n protection policy to host web server log data. Upon further analysis, the customer discovers that the web servers write log files 64KiB in size. The log files are then accessed by an analytics application for reporting purposes. What should be done to increase the write performance of the cluster?

Options:

A.

Change the protection scheme to a mirroring policy

B.

Add S-Series storage nodes to the cluster

C.

Add A-Series Performance Accelerator nodes to the cluster

D.

Change the SSD strategy on the cluster

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Questions 49

In OneFS, what is the largest number of disks in a subpool?

Options:

A.

234

B.

256

C.

468

D.

864

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Questions 50

When an Isilon SyncIQ replication job completes, how many SnapshotIQ policies can be created on a target cluster directory?

Options:

A.

1

B.

2

C.

3

D.

4

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Questions 51

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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Exam Code: E20-555
Exam Name: Isilon Solutions and Design Specialist Exam for Technology Architects
Last Update: Jun 17, 2024
Questions: 344
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