E20-555 Questions And Answers


Exam Name: Isilon Solutions and Design Specialist Exam for Technology Architects

Updated: 2020-09-30

Q & A: 344

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Question No : 1

An Isilon customer wants a job to periodically check disk sectors to ensure they can be read.
What should be recommended to the customer?
A. MediaScan
B. IntegrityScan
C. Dynamic Sector Repair
D. Isilon Data Integrity
Answer: A

Question No : 2

A hospital is considering using Isilon to store their archived medical images and Genomic Sequencing data. They currently have 56 TB of PACS images and 24 TB of genomic data, and expect to double their capacity requirements this year. They will replicate to a DR cluster, and plan to use N+2 protection. The production workload needs to be run at either site.
Which minimum cluster configuration, at each site, including software, would meet this customer's environment?
A. Five X400 (2 TB drives) nodes with SyncIQ.
B. Four NL400 (3 TB drives) nodes with SyncIQ.
C. Seven X200 (3 TB drives) nodes with SyncIQ and SnapshotIQ
D. Five X400 (2 TB drives) nodes with SnapshotIQ.
Answer: A

Question No : 3

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?
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
Answer: A

Question No : 4

Which Isilon OneFS job, that runs manually, is responsible for examining the entire file system for inconsistencies?
A. IntegrityScan
B. MediaScan
C. AutoBalance
D. FlexProtect
Answer: A

Question No : 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?
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
Answer: A

Question No : 6

A customer has an Isilon cluster that they want to simplify a Hadoop workflow. The workflow analyzes large amounts of log data written to storage using FTP and results are viewed by Microsoft Windows clients?
How can this be achieved?
A. FTP, SMB, and HDFS NameNode and DataNode protocol support on the same file system to enable each workflow step to access data from the same location avoiding data migration.
B. SyncIQ to migrate the log data between an Isilon cluster and another Hadoop cluster, to retrieve results from the Hadoop cluster, and to store them in an SMB share.
C. SmartConnect to direct clients to an external Hadoop NameNode and to SMB shares so data ingest, analytics, and results phases are transparently directed.
D. FTP and SMB protocol support to provide log ingest and Windows clients; SmartPools will stub to HDFS helping to reduce the frequency of external data migration.
Answer: A

Question No : 7

A customer is planning an Isilon deployment for use with their Hadoop environment.
What is one advantage of using Isilon as the HDFS layer?
A. Facilitates independent scaling of compute and storage nodes
B. Provides single protocol access to data
C. Integrates storage into Hadoop compute for more flexibility
D. Allows the compute nodes to apply data protection
Answer: A

Question No : 8

Which Isilon feature provides the ability to build a cluster using different node types and tiers to meet a customer's business objectives?
A. SmartPools
B. SmartQuota
C. SmartConnect
D. SnapshotIQ
Answer: B

Question No : 9

What does Isilon OneFS use to re-write data when a disk read fails?
A. Dynamic Sector Repair
C. Isilon Data Integrity
Answer: A

Question No : 10

How much space is consumed by a 4 KB file when the file data is written to the Isilon cluster?
A. 4 KB
B. 8 KB
C. 16 KB
D. 32 KB
Answer: B

Question No : 11

A company wants to reduce the footprint in their data center. They recently completed a proof of concept with Hadoop using Direct Attached Storage (DAS) for their Big Data initiative. You have determined that incorporating an Isilon cluster into their Hadoop environment would help in reducing this footprint.
Which Hadoop components can be consolidated onto the Isilon cluster to reduce the footprint?
A. DataNode and NameNode
B. DataNode and ComputeNode
C. ComputeNode and NameNode
D. NameNode and TaskTracker
Answer: A

Question No : 12

A customer is trying to get Isilon SyncIQ to run on the two clusters they just purchased. However, they are experiencing some problems. They have asked you to explain how the SyncIQ licensing works.
What information can be provided to the customer?
A. SyncIQ license is required on both the source and target clusters
B. SyncIQ license is required on the source but not on the target cluster
C. SyncIQ license is required on target but not on the source cluster
D. SyncIQ license is included in the OneFS license; no additional license is needed
Answer: C

Question No : 13

Which impact policies are available on an Isilon cluster?
A. High, Medium, Low,Default
B. High, Medium, Low, Paused
C. High, Medium, Low, Auto
D. ASAP, High, Medium, Low
Answer: B

Question No : 14

Your customer has a new business unit. They are gathering web log files to be analyzed. They are using Hadoop to do the analysis of the logs. The IT department is centrally storing the log files on a 5-node Isilon cluster. They have enabled the Hadoop cluster to access the files directly on the Isilon storage. The nodes are X400's with two SSD drives in each node and 96GB of RAM.
How many DataNodes does the Isilon cluster have?
A. Five
B. One
C. Three
D. Two
Answer: A

Question No : 15

A hospital is considering using Isilon to store their long-term archive data for their GE PACS application. They currently have two million 17 MB studies. They expect capacity requirements to be 50% compounded growth per year. They plan to use N+2:1 protection, and would like this sized for three years of growth.
Which minimum cluster configuration would meet this customer's environment?
A. Five NL400 (1 TB drive) nodes
B. Four NL400 (2 TB drive) nodes
C. Five X200 (3 TB drive) nodes
D. Three X400 (3 TB drive) nodes
Answer: A
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