E20-555 Free Certification Exam Material from ITexamReview with 345 Questions
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Books to Ace E20-555 Exam
Being a specialist test, E20-555 leaves no stone unturned to grill the knowledge of the test-taker. So, it is wise to take the right study resources on board. Books are the best and viable way to have an impactful self-study. When you are looking for a manual to master the E20-555 subject domains, Amazon won’t disappoint you at all. Thus, here are the top recommendations:
- EMC Isilon Complete Guide
Being a boon for every E20-555 aspirant, this book is a must-have when getting the exam ready is the intention. It is the 2020 edition and is available in Kindle and Paperback format. Also, a handbook like this is equipped with practical tools for impactful self-assessment. Because of these only, one can gain stand-out expertise in the EMC Isilon domain and face the exam challenges with full confidence. As such material has been curated by a best-selling author, Gerardus Blokdyk, its viability can’t be questioned. More so, the mind-bending items included in the book are challenging and useful. With this guide, you get lifetime assistance. So, it is indeed the best bet for you.
- Isilon Systems: Tactical & Strategic Database Specifications
This one is a quality book from the house of United States Editorial DataGroup. As it has been recently published, you will have access to only updated exam knowledge. However, only the Kindle edition is obtainable at almost $12. In particular, the guide explains key specifications and parameters of the Tactical & Strategic Report and Database for Isilon Systems most straightforwardly and impressively. Plus, it gives better clarity about Isilon and its market penetration.
Prior Expertise Required
As mentioned above, E20-555 is the qualifying test for the specialist certification so it is imperative that the aspirant should be accustomed to the theories. Thus, candidates endeavoring for a specialist-level designation should be well-versed in associated-level knowledge. For E20-555 test, here are the associated-level certificates to achieve:
- Associate - ISM Version 4.0;
- Associate - ISM Version 2.0;
- Associate - ISM Version 3.0;
- Specialist - Technology Architect, Isilon Solutions Version 3.0
Any of these options should be acquired by E20-555 aspirants. Doing so lets the test-taker have strong elementary subject-knowledge that is required for a smooth exam journey.
Vendor Training for Easy Exam Journey
Training courses are a real savior when professional certifications are concerned. Using a high-end learning approach, these classes allow an aspirant to weave success in the real validation. For E20-555 exam, the vendor offers a wide range of paid and free training courses. So, here is a list of PowerScale Solution Design lessons that are offered by the vendor:
- Monitoring;
- Platform Architecture;
- Data Protection;
- Verticals.
- Networking;
- Data Management;
- PowerScale Concepts;
- Replication and Recovery;
- Cluster Access;
So, choose wisely and as per your requirements and get armed with the necessary knowledge to nail E20-555 exam with ease.
NEW QUESTION 147
An Isilon customer wants to more effectively manage their storage and thereby achieve performance improvements. Which tool will help improve workflow performance on their cluster?
- A. InsightIQ
- B. SyncIQ
- C. Isilon SNMP MIB
- D. SmartPools
Answer: A
NEW QUESTION 148
An Isilon customer has an 8-node cluster of older X-Series nodes. They plan to upgrade the nodes over the next three years in the following stages:
* Stage 1: Add 2 X-Series nodes to meet performance growth
* Stage 2: Add 4 NL-Series nodes to meet archive capacity growth
* Stage 3: Add 10 New X-Series nodes as a hardware refresh
* Stage 4: Remove older X-Series nodes
At which point will a SmartPool license be required?
- A. Stage 3
- B. Stage 1
- C. Stage 2
- D. Stage 4
Answer: C
NEW QUESTION 149
If SmartPools is unlicensed on a cluster, which features are NOT enabled?
- A. File pool policy filters, specify spill over target
- B. Specify spill over target, automatic node pool provisioning
- C. File pool policy filters, snapshot target
- D. Metadata acceleration setting, GNA
Answer: A
Explanation:
Reference:
http://doc.isilon.com/onefs/6.0.4/webhelp/en-us/Content/dto1264619601462.html
NEW QUESTION 150
A company has purchased an Isilon cluster. The storage administrator knows they will have a large number of clients with similar workloads connecting to the cluster through NFS, and connections will be maintained for a long time. Which two connection balancing policies should be recommended for initial use? (Choose two.)
- A. Round Robin and CPU Utilization
- B. CPU Utilization and Network Throughput
- C. Round Robin and Connection Count
- D. Connection Count and Network Throughput
Answer: B,C
Explanation:
Explanation: References:
NEW QUESTION 151
A potential customer requires 4 PB of usable capacity to store media files. The workloads are a combination of streaming video delivery and long term archive of video assets.
There is very little space available in the customer's datacenter, so physical density is very important. The customer is concerned about performance impact and potential data loss when using 3 TB or larger drives.
What Isilon capabilities can address the customer's concerns?
- A. Isilon nodes have more drives per rack unit so fewer shelves are required.
Proactive hot sparing eliminates most drive rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability. - B. Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID rebuilds.
Data recovery is consistent, taking the same amount of time regardless of cluster size.
Isilon 'short strokes' 4TB drives to reduce rebuild time. - C. Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Data redistribution runs faster with more nodes in the cluster. - D. N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Proactive hot sparing eliminates most drive rebuilds.
Endurant Cache reduces the overhead for write operations.
Answer: C
NEW QUESTION 152
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?
- 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. Suggest the customer consider leveraging SSDs in the new nodes they purchase and GNA to boost the performance of each cluster.
- C. 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.
- D. 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.
Answer: A
NEW QUESTION 153
How are files smaller than 128 KB protected?
- A. 2x mirrored
- B. 3x mirrored
- C. N+2d:1n
- D. N+3d:1n
Answer: B
Explanation:
Reference:
http://webcache.googleusercontent.com/search?q=cache:2rNjWq1ozJIJ:doc.isilon.com/ onefs/5.5.x/webhelp/en-us/Content/rdu1254425851461.html&client=firefox-b-e&hl=en&gl=pk&strip=1&vwsrc=0
NEW QUESTION 154
What is the recommended namespace path for the access zone on a new Isilon cluster with SyncIQ license?
- A. /ifs/<Access-Zone_Name>/<Cluster-Name>/data
- B. /ifs/<Cluster-Name>/data
- C. /ifs/<Cluster-Name>/<Access-Zone_Name>/data
- D. /ifs/<Access-Zone_Name>/data
Answer: B
Explanation:
Reference:
https://www.dellemc.com/en-us/collaterals/unauth/technical-guides-support-information/2019/09/ docu95372.pdf
NEW QUESTION 155
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?
- A. It uses large read requests
- B. It is metadata intensive
- C. It is mostly sequential reads
- D. It contains mostly random writes
Answer: B
NEW QUESTION 156
Your customer has an existing Isilon cluster comprised of five NL-Series nodes. They have a new project that will quadruple their current throughput requirements. Upon reviewing reports in InsightIQ, you see that the aggregate external network throughput is peaking at 600MB/s. The customer states that data is only active for the first 7 days, but they keep it indefinitely.
Which recommendation best supports their growth requirements?
- A. Add X-Series nodes to the cluster, and use SmartPools to migrate inactive data to the NL-Series nodes.
- B. Add a VNX Unified array for the new project, and use rsync to migrate data to the Isilon cluster for archiving.
- C. Use the Isilon Sizing Tool to determine GNA requirements, and add NL-Series nodes with SSD to the cluster.
- D. Add A-Series nodes to the cluster to boost combined network performance.
Answer: A
NEW QUESTION 157
You are involved with a Proof of Concept where the performance is not what you expect.
What can you use to collect process stack information and a listing of process waiting on I/O?
- A. tcpdump
- B. isi statistics
- C. isi_get_itrace
- D. netstat
Answer: B
NEW QUESTION 158
A telecommunications company has a substantial amount of data. This data is being created by network elements within their environment.
The company wants to change the way the network elements Call Detail Records (CDR) are stored and analyzed. The existing infrastructure consolidates all of the CDRs into a table structure, and then ingests them into a large database. Once ingested, a query engine accesses the database and performs analysis on these files. The system is functional; however, since the amount of CDRs generated will increase exponentially over the next year, the company is open to alternatives for storing and analyzing these records.
In evaluating alternatives, the key requirements are to reduce cost, the amount of storage, and the amount of time to analyze the data. The customer would like to use Hadoop to analyze the CDRs.
After you have conducted an assessment of the workflow, you have recommended an Isilon Cluster to work within the Hadoop environment.
Which protocols would be the best fit when using Isilon for this customer's Hadoop workflow?
- A. SyncIQ and HTTP
- B. NDMP and SCP
- C. NFS and HDFS
- D. CIFS and FTP
Answer: C
NEW QUESTION 159
A NetApp customer is considering Isilon. They use their filers for UNIX home directories, and would like to see a suggested configuration that would meet their needs.
What would you do to help size this cluster?
- A. Ask for an autosupport file and upload it to MiTrends to generate a workflow profile
- B. Ask them to install InsightIQ and collect data from the filer, then import to SQL for analysis
- C. Use tcpdump and upload the output file to MiTrends to generate a protocol analysis
- D. Ask for the output from nfsstat and upload it to MiTrends to generate a workflow profile
Answer: D
NEW QUESTION 160
Which node type provides CPU, memory, and Fibre Channel connectivity?
- A. X-Series
- B. Performance Accelerator
- C. Backup Accelerator
- D. NL-Series
Answer: C
NEW QUESTION 161
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?
- A. How much capacity are you looking for?What applications access this storage?What risks are there in your current infrastructure?
- B. What filesystems, SMB, NFS, or other are you using?What does your infrastructure look like?How do you manage your File Systems?
- C. What does your infrastructure look like?What applications access this storage?What protocols and version number?
- D. What is your network infrastructure like?How many Storage Fabrics do you have?What is your Disaster Plan for the Newspaper?
Answer: B
NEW QUESTION 162
Where does Endurant Cache stage its write cache?
- A. SSD
- B. DRAM
- C. NVRAM
- D. DISK
Answer: D
NEW QUESTION 163
How are files smaller than 128 KB protected?
- A. 2x mirrored
- B. 3x mirrored
- C. N+2d:1n
- D. N+3d:1n
Answer: B
Explanation:
Explanation/Reference: http://webcache.googleusercontent.com/search?q=cache:2rNjWq1ozJIJ:doc.isilon.com/ onefs/5.5.x/webhelp/en-us/Content/rdu1254425851461.html&client=firefox-b-e&hl=en&gl=pk&strip=1&vwsrc=0
NEW QUESTION 164
A customer environment is used for analytics on very large datasets. They are interested in using Isilon storage and Hadoop but are concerned about the costs.
How does Isilon change the scalability of a Hadoop environment?
- A. DataNode and TaskTracker are offloaded to the Isilon cluster
- B. NameNode and DataNode are offloaded to the Isilon cluster
- C. NameNode and JobTracker are offloaded to the Isilon cluster
- D. JobTracker and TaskTracker are offloaded to the Isilon cluster
Answer: B
NEW QUESTION 165
What is a Shadow Store used for in Isilon OneFS?
- A. Changed block data for clones and original files
- B. Shared data for clones and original files
- C. Changed blocks for SnapshotIQ
- D. Changed block data for SyncIQ
Answer: B
NEW QUESTION 166
Which OneFS roles should be assigned to an Active Directory group for login privileges equivalent to the
'admin' local account?
- A. System Admin and Security Admin
- B. Security Admin and AuditAdmin
- C. System Admin, BackupAdmin, and StatisticsAdmin
- D. System Admin, AuditAdmin, and BackupAdmin
Answer: A
Explanation:
Reference:
https://www.dellemc.com/en-us/collaterals/unauth/technical-guides-support-information/2019/09/ docu95373.pdf
NEW QUESTION 167
In a multi-tenant environment, which OneFS feature can be used to isolate and secure data from each tenant?
- A. RBAC
- B. ZRBAC
- C. Access Zones
- D. Groupnets
Answer: C
Explanation:
Reference:
https://www.slideshare.net/emcacademics/h13564-wpemcisilonanalyticsmultitenancy (6)
NEW QUESTION 168
An Isilon has 3 NL410 nodes with 36 2 TB HDDs each. VHS is specified as 3 virtual drives or 15 percent of the node pool. Which configuration would be used as reserved space for VHS?
- A. 3 virtual drives for each node in the cluster
- B. 3 virtual drives in the cluster
- C. 15% in the node pool plus 3 virtual drives
- D. 15% of the total space in the node pool
Answer: D
NEW QUESTION 169
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?
- A. What Enterprise Resource Planning platform are they using in manufacturing?
What is their Recovery Point Objective?
What is their Archival Strategy? - B. 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? - 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. How many data centers do they have?
Will their Network Infrastructure support implementing Isilon?
What Enterprise Resource Planning platform are they using in manufacturing?
Answer: C
NEW QUESTION 170
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?
- A. 766 KiB
- B. 768 KiB
- C. 638 KiB
- D. 640 KiB
Answer: C
NEW QUESTION 171
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