What Realistic E20-555 Exam Price Is

NEW QUESTION 1
A customer wants an N+3 protection level on their cluster. What is the minimum number of nodes they need to achieve that level of protection?

• A. 3
• B. 6
• C. 7
• D. 8

Answer: C

NEW QUESTION 2
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. 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.

Answer: A

NEW QUESTION 3
At which level can retention periods be applied with Isilon SmartLock?

• A. Directory
• B. Node
• C. File system
• D. Cluster

Answer: D

NEW QUESTION 4
If a file is 4 KB in size, how much space is consumed for file data when it is written to the Isilon cluster?

• A. 4 KB
• B. 8 KB
• C. 16 KB
• D. 32 KB

Answer: B

NEW QUESTION 5
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 6
Which type of data is stored in Endurant Cache of an Isilon node?

• A. Write
• B. Volume
• C. Read
• D. Protection

Answer: A

NEW QUESTION 7
-- 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 -
Before making any changes, the customer would like a graphical presentation of their existing array performance to present to management.
What is the best tool to gather this information?

• A. InsightIQ
• B. isi_netlogger
• C. tcpdump
• D. netstat

Answer: A

NEW QUESTION 8
Which node type provides CPU, memory, and Fibre Channel connectivity?

• A. Backup Accelerator
• B. Performance Accelerator
• C. X-Series
• D. NL-Series

Answer: A

NEW QUESTION 9
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.
Which storage capacity would be the best suited to meet the required changes and utilize 65-75% capacity?

• A. 110 TB
• B. 80TB
• C. 140TB
• D. 50TB

Answer: A

NEW QUESTION 10
You have been tasked with designing a solution for a company that wants to logically separate access to their Isilon storage by department. Each of their major internal departments currently uses different Active Directory authentication providers. In addition, they want to provide Isilon storage access to these departments while maintaining their authentication separation.
Which feature will provide this functionality?

• A. Access Zones
• B. Network Segmentation
• C. Multi-Homing
• D. VLAN Trunking

Answer: A

NEW QUESTION 11
What is the smallest unit of manageable storage within Isilon SmartPools?

• A. SSD pool
• B. Node pool
• C. Disk pool
• D. File pool

Answer: C

NEW QUESTION 12
You are setting up SmartPools on the cluster. Which Microsoft Windows system tool will illustrate the difference in performance experienced by clients connecting to different tiers of storage?

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

Answer: A

NEW QUESTION 13
What determines how a user is directed to the correct secure multi-tenancy access zones?

• A. External protocols
• B. Isassd daemon
• C. External providers
• D. Incoming IP

Answer: C

NEW QUESTION 14
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. • How many data centers do they have?• Will their Network Infrastructure support implementing Isilon?• What Enterprise Resource Planning platform are they using in manufacturing?
• 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. • 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?

Answer: C

NEW QUESTION 15
After raw events are processed by the CELOG coalescers, what happens to the data?

• A. Stored in the log databases and coalesced into event groups
• B. Stored in the audit host and coalesced into event groups
• C. Stored in the syslog host and coalesced into event groups
• D. Stored in the log databases and not coalesced into event groups

Answer: B

NEW QUESTION 16
A Media and Entertainment company is considering changing from 2K resolution to 4K resolution. They will continue to use the DNxHD 220 codec.
Assuming everything else stays the same, how will this change affect storage?

• A. Storage will be half as large
• B. Storage requirements will not change
• C. Storage will be twice as large
• D. Storage will be four times as large

Answer: B

NEW QUESTION 17
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. JobTracker and TaskTracker are offloaded to the Isilon cluster
• B. DataNode and TaskTracker are offloaded to the Isilon cluster
• C. NameNode and DataNode are offloaded to the Isilon cluster
• D. NameNode and JobTracker are offloaded to the Isilon cluster

Answer: C

NEW QUESTION 18
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 five node Isilon cluster. They have enabled the Hadoop cluster to access the files directly. 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. 1
• B. 5
• C. 10
• D. 15

Answer: B

NEW QUESTION 19
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 20
An Isilon customer implemented a retention period at the directory level. They set individual retention periods on individual files within those directories.
Which retention periods will be enforced?

• A. Latest retention period
• B. Earliest retention period
• C. File-level retention
• D. Directory-level retention

Answer: A

NEW QUESTION 21
What is the overhead impact on the physical capacity when configuring data protection at +2:1 on a 6-node Isilon cluster?

• A. 1/2
• B. 1/4
• C. 1/5
• D. 1/6

Answer: C

NEW QUESTION 22
Which Isilon job periodically checks disk sectors to ensure they can be read?

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

Answer: A

NEW QUESTION 23
On an Isilon cluster, how much space should be reserved for snapshots by default?

• A. 0%
• B. 5%
• C. 10%
• D. 20%

Answer: A

NEW QUESTION 24
-- 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 –

The customer wants to be able to put completed content into a non-editable folder. However, they want to give access to an administrator to delete content if required. What do you recommend to the customer?

• A. SmartLock using Enterprise mode
• B. SmartLock using Compliance mode
• C. WORM using Compliance mode
• D. SyncIQ with read-only mode

Answer: A

NEW QUESTION 25
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. 638 KiB
• B. 640 KiB
• C. 766 KiB
• D. 768 KiB

Answer: A

NEW QUESTION 26
What is the relative latency of a cache hit to L1 cache compared to a hit to L2 cache in an Isilon cluster?

• A. 2x
• B. 5x
• C. 10x
• D. 25x

Answer: C

NEW QUESTION 27
What determines the number of job engine workers assigned to a task?

• A. Job task
• B. Job priority
• C. Job impact policy
• D. Job phase

Answer: D

NEW QUESTION 28
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