A Review Of 100% Guarantee E20-555 Answers

NEW QUESTION 1
You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs.
What would be a good prequalifying question to ask?

• A. What protocols are accessing your NAS?
• B. What application are you using to create directories?
• C. Is your datacenter ISO9001 compliant?
• D. How many users are in your Directory Services?

Answer: A

NEW QUESTION 2
What is the maximum number of file pool policies supported in an Isilon cluster?

• A. 100
• B. 128
• C. 256
• D. No limit

Answer: C

NEW QUESTION 3
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?

• 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

Answer: A

NEW QUESTION 4
Which Isilon OneFS administration methods are enforced by RBAC?

• A. Platform API, command line, and web administration interface
• B. Command line, InsightIQ, and web administration interface
• C. SNMP and web administration interface
• D. Command line, web administration interface, and SNMP

Answer: A

NEW QUESTION 5
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?

• A. InsightIQ
• B. Network Monitor
• C. Wireshark
• D. Watch4net

Answer: A

NEW QUESTION 6
In OneFS, what is the largest number of disks in a subpool?

• A. 234
• B. 256
• C. 468
• D. 864

Answer: B

NEW QUESTION 7
A customer has an Isilon cluster with 6 nodes and a single 4-core CPU per node. The default configuration for SyncIQ workers per CPU core and SyncIQ workers per node per job limits are used.
How many SyncIQ workers are available for the Isilon cluster?

• A. 24
• B. 64
• C. 96
• D. 192

Answer: B

NEW QUESTION 8
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

NEW QUESTION 9
Your customer has an existing Isilon cluster with seven X200 nodes. The cluster is used to store home directories and departmental shared folders. They are planning to deploy a new application that generates small block, synchronous writes.
Which OneFS 7 capability can help reduce latency for the new workload?

• A. Endurant Cache
• B. L2 Cache
• C. Solid State Drives
• D. Prefetcher

Answer: A

NEW QUESTION 10
A customer plans to deploy N+2:1 protection on a 5-node Isilon cluster. How much capacity will be used to store a 1024 KiB file?

• A. 1024 KiB
• B. 1280 KiB
• C. 1792 KiB
• D. 1920 KiB

Answer: B

NEW QUESTION 11
Where does SmartCache stage its write cache?

• A. SSD
• B. DISK
• C. NVRAM
• D. DRAM

Answer: D

NEW QUESTION 12
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?

• A. 6 nodes
• B. 10 nodes
• C. 14 nodes
• D. 18 nodes

Answer: A

NEW QUESTION 13
Your customer is looking for a storage solution that will be able to store seven million 3 MB files, which are written and seldom accessed. Read and write operations are both completed by a web-based application, which requires 1.3 Gbps throughput. The customer's network has not been upgraded in many years, so the network interfaces are 1Gbps.
Which cluster configuration would best meet the customer's requirements?

• A. 3 NL400 nodes
• B. 3 X400 nodes
• C. 4 X200 nodes
• D. 5 S200 nodes

Answer: D

NEW QUESTION 14
There is a requirement to use dynamic link aggregation to maximize throughput and resiliency on a new Isilon cluster servicing SMB and NFS data. What is the recommended configuration for the physical network interfaces?

• A. FEC
• B. Round robin
• C. Active/passive failover
• D. LACP

Answer: C

NEW QUESTION 15
A potential customer requires 800TB of usable capacity to store medical images for their network of health clinics. The IT department has limited staff and currently manages four storage arrays from other vendors. During a meeting with the Director of IT, you learn that the company is planning to deploy a scale-out NAS solution from a competitor of EMC.
Which factors can demonstrate a lower TCO using Isilon?

• A. An IDC study found that Isilon requires 30% less downtime per year compared to other solutions
• B. Isilon linear scalability eliminates over buying and over provisioning
• C. An IDC study found that Isilon requires 95% less downtime per year compared to other solutions
• D. Isilon uses lower speed NL-SAS drives which reduces overall power and cooling requirements
• E. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors
• F. Isilon linear scalability eliminates over buying and over provisioning
• G. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors
• H. Isilon linear scalability closely aligns with additional staff requirements as capacity grows

Answer: CF

NEW QUESTION 16
What is used to set permissions for ESRS-managed devices?

• A. Policy Manager
• B. InsightIQ
• C. ESRS gateway
• D. SupportIQ

Answer: A

Explanation:
The Policy Manager enables you to set permissions for devices being managed by ESRS. References:

NEW QUESTION 17
A customer is configuring Isilon SmartConnect. They have determined that their workload primarily consists of short-lived connections, such as HTTP and FTP.
Which load-balancing policy provides the most efficient client distribution?

• A. CPU Utilization
• B. Round Robin
• C. Connection Count
• D. Random Selection

Answer: A

NEW QUESTION 18
An Isilon customer needs to grant a specific administrator on RBAC privilege. What does the customer need to do?

• A. Add the selected user account to the appropriate RBAC role and facilitate user access to the System access zone.
• B. Add the selected user account to the local provider, grant the appropriate RBAC role, and facilitate access to the production access zone only.
• C. Add the selected user account to the remote provider, grant the appropriate RBAC role, and facilitate access to the production access zone only.
• D. Add the selected user account to the local provider, grant the appropriate RBAC role, and facilitate access to both the production access zone and System access zone.

Answer: A

NEW QUESTION 19
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?

• A. tcpdump
• B. iostat
• C. Wireshark
• D. NFSstat

Answer: B

NEW QUESTION 20
An Isilon customer wants a job to periodically validates the checksum of every block in the file system. What should be recommended to the customer?

• A. IntegrityScan
• B. MediaScan
• C. Dynamic Sector Repair
• D. Isilon Data Integrity

Answer: A

NEW QUESTION 21
You are designing a new Isilon cluster that requires backup to tape for all files in the Legal and Accounting shared folders. The customer has sized their IP network to support the application workload, but no additional bandwidth is available.
What should be recommended for the backup solution?

• A. Use an Avamar NDMP accelerator and dedicated 10Gb/s network interfaces
• B. Use Backup Accelerator nodes for 2-way NDMP
• C. Use Backup Accelerator nodes for 3-way NDMP
• D. Use SmartConnect Advanced and 10Gb/s network interfaces with LACP

Answer: B

NEW QUESTION 22
Which tool is used to perform a cluster-wide kernel configuration change on an Isilon Gen 6 cluster?

• A. sysct1
• B. isi_tardis
• C. isi_for_array
• D. gconfig

Answer: A

NEW QUESTION 23
Your customer manages a print media environment, consisting of three Isilon clusters, which are out of support. The customer would like to have access to new software releases and feature sets. You have been asked to perform a full discovery of the customer’s environment.
The customer's current Isilon clusters are as follows:
“Cust” (12 x 12000X) serves as upload media storage for different tenants.
“Working” (8 x 12000X + 6 x X200) serves as a working zone for extraction to RAW and printing media from it.
“Archive” (16 x 72NL + Accelerator nodes) is used to store printed content for six months.
The customer operates in a Windows environment using SMB 2.0, two DNS servers per AD forest, three forest domains which are servicing three different environments. All servers are operating on a 1Gb network, three VLANs segregating the DEV/QA/PROD environments. Currently, there is no monitoring in place for performance measurement or optimization.
The requirements for this solution include:
Better ROI and TCO
Maintain same performance with possible improvements
Renew HW/SW and get inclusive support
Limit migrations
Reduce space, power, cooling consumption
Get new feature sets
If migration required, use Parallel copy (multiple nodes, multiple threads, multiple connections)
Segregate tenant shares from other tenants
Expand up to 1PB of total storage
What would you recommend be done to consolidate the three clusters into one?

• A. • Expand the largest and most I/O intensive cluster using SmartFail• Consolidate the remaining two clusters using Multithreaded version of RoboCopy• Modify A-Record and propagate to all DNS servers to point to the new cluster
• B. • Leave the clusters as is• Upgrade drive sizes to meet the customer requirements
• C. • Expand the largest and most I/O intensive cluster using SmartFail• Consolidate the remaining two clusters using SyncIQ
• D. • Build a new cluster for consolidation• Use SnapshotIQ to migrate the existing data onto the new consolidated cluster• Spoof DNS to point to the new cluster

Answer: C

NEW QUESTION 24
A customer is having problems writing data to their Isilon cluster. You have checked all network settings and authentication sources. No errors are reported from the cluster. The customer runs tcpdump and sends the results to you.
Now that you have the output, which tool would you use to open the results file?

• A. IOZone
• B. Wireshark
• C. MiTrend
• D. Iometer

Answer: A

NEW QUESTION 25
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?

• 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

Answer: B

NEW QUESTION 26
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