The Secret Of EMC E20-555 Dumps

NEW QUESTION 1
When a Gen 6 Isilon cluster receives a file to be stored, which node(s) performs the FEC calculation?

• A. First node in each node pair
• B. Node that will be holding the FEC
• C. Node to which data was initially sent
• D. Each node in the cluster

Answer: A

NEW QUESTION 2
What key considerations should be kept in mind when designing a 300TB solution?

• A. Workflow managementDefining class of serviceTime of day servicesRPO and RTOData retention and backup
• B. Defining class of serviceTime of day servicesROI and TCOData retention and backup
• C. SmartPoolsSmartconnectSnapshotsSpace for snapshots
• D. Always include 2% SSDSmartPoolsSmartconnectSnapshotsInsightIQ

Answer: A

NEW QUESTION 3
A customer configures a file pool policy to write data to tier 2 on the Isilon cluster. This is in addition to the 30 policies already created. Later in the week they check the file placement and see that it has not been written to the correct tire. What could be the problem?

• A. Number of allowable policies has been exceeded so the new policy will not run.
• B. File matches a policy for a different tier that is listed higher in the file pool policy list.
• C. SmartPools policy job has not yet run so the file was written using the default policy.
• D. File matches a policy for a different tier that is listed lower in the file pool policy list

Answer: B

NEW QUESTION 4
An Isilon customer created a SyncIQ policy to replicate data from a primary cluster to an offsite secondary cluster. The primary cluster becomes unavailable, and the customer has completed a failover onto the secondary cluster.
The primary cluster becomes available again, so the customer would like to fail back data to the primary cluster. The failback process does not replicate data.
What is the most likely reason the failback policy does not replicate data to the primary cluster?

• A. Clusters are not sharing an Infiniband switch
• B. Secondary cluster has modified files on it
• C. Original policy was for synchronization
• D. Policy contains a SmartLock directory

Answer: C

NEW QUESTION 5
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 6
A customer is able to see some performance metrics in the Isilon OneFS dashboard or by using CLI. Other performance metrics will require InsightIQ.
What will require a licensed version of InsightIQ?

• A. Capacity Trending
• B. Cluster Throughput
• C. CPU Usage
• D. Active Client Connections

Answer: B

NEW QUESTION 7
An Isilon customer experienced a node failure. The failure requires that the affected node be permanently removed from the cluster. What will occur in the cluster upon failure of the node?

• A. OneFS will assume it is a temporary failure and the data will not be protected at the appropriate levels.
• B. Cluster will detect the node failure and automatically begin the SmartFail process.
• C. FlexProtect will be activated and data will be protected at the appropriate levels.
• D. Nothin
• E. When data protection levels are set appropriately, OneFS will always protect data without manual interaction.

Answer: A

NEW QUESTION 8
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 9
A four-node Isilon cluster is being used in a Hadoop workflow with a parity protection of N+2:1. The HDFS protocol has been enabled and is being used to access data.
How many additional copies of data are written into the Isilon cluster using HDFS?

• A. None
• B. One
• C. Three
• D. Two

Answer: A

NEW QUESTION 10
Which tool measures actual throughput and produces sophisticated graphs?

• A. MiTrend
• B. WireShark
• C. Perfmon
• D. IOZone

Answer: B

NEW QUESTION 11
Which type(s) of data is predominately associated with home directories and file shares?

• A. E-mail files, PPT, Word documents
• B. Oracle directories
• C. SQL database files
• D. XML data

Answer: A

NEW QUESTION 12
You will be meeting with the Corporate Security Team as part of the implementation planning for a new Isilon cluster deployment. The Lead Security Analyst has asked you to discuss the Authentication Sources on your Isilon Cluster.
What customer questions regarding Isilon-supported Authentication Sources do you need to be prepared to answer?

• A. What mechanism are you using for NFS authentication?Do you have multiple AD domain support?What versions of LDAP are supported?
• B. Are you using File Services for UNIX in your AD environment?Do you support NIS+ for NFS authentication?Do you support multiple Access Zones connecting to the AD Domain?
• C. What mechanism are you using for NFS authentication?Do you support Novell Directory Services?What flavor of LDAP is supported?
• D. Is the cluster x.400 compliant?What firewall rules are in place to prevent data leakage?Is there a audit trail for access zone configuration changes?

Answer: A

NEW QUESTION 13
-- 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 -
Refer to the exhibit.

Based on the described use of the cluster, what are the customer's capacity requirements?

• A. 30 days retention: 15 TB; 2 years retention: 360 TB
• B. 30 days retention: 5 TB; 2 years retention: 120 TB
• C. 30 days retention: 1 TB; 2 years retention: 24 TB
• D. 30 days retention: 30 TB; 2 years retention: 720 TB

Answer: A

NEW QUESTION 14
If a client is mounted to the sixth node in a 20-node Isilon cluster, how much memory cache can that client leverage assuming each node has 8 GB of memory cache?

• A. 16 GB
• B. 40 GB
• C. 120 GB
• D. 160 GB

Answer: D

NEW QUESTION 15
You need to gather information in order to design an Isilon solution. What are included in the Top 10 qualification questions?

• A. Required capacity, average file size, growth rate, and network supplier
• B. Current infrastructure, desired protocols, CapEx/OpEx preference, and growth rate
• C. Required capacity, applications in use, desired protocols, and growth rate
• D. Current infrastructure, applications in use, desired protocols, and company turnover

Answer: A

NEW QUESTION 16
What is the maximum volume or aggregate size that can be created with an Isilon Scale-Out NAS system?

• A. 16 TB
• B. 100 TB
• C. 2.3 PB
• D. 20 PB

Answer: D

NEW QUESTION 17
What is a Shadow Store used for in Isilon OneFS?

• A. Shared data for clones and original files
• B. Changed block data for clones and original files
• C. Changed block data for SyncIQ
• D. Changed blocks for SnapshotIQ

Answer: A

NEW QUESTION 18
Refer to Exhibit below:

What is represented by the information shown in the exhibit?

• A. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp.
• B. Directory quota cannot exceed 2 TB for /ifs/data/media and no quota limit on/ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp.
• C. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 2 TB for/ifs/data/media/temp.
• D. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 900 GB and each user can only store 75 GB for /ifs/data/media/temp.

Answer: A

NEW QUESTION 19
You meet with the IT Director of a large single site campus. The IT department has recently taken over Physical Security from the facilities department and plans a complete overhaul of the surveillance solution. They are looking to you as a storage architecture expert to provide the correct amount of storage needed. The IT Director asks you what items they need to provide in order to size this solution.
What data do you require from the customer?

• A. ResolutionCODECFrames Per Second (fps)Number of DevicesRetention Time
• B. Pixel CountCODECColor SamplingFrames Per Second (fps)Number of DevicesRetention Time
• C. Pixel CountCODECColor SamplingFrames Per Second (fps)Number of DevicesVideo Management SystemEvidence Collection Period
• D. Bit rate per cameraCamera ManufacturerVideo Management SystemRetention Time

Answer: A

NEW QUESTION 20
Which type of infrastructure does the Isilon scalable appliance connect to on the front-end?

• A. Ethernet
• B. FICON
• C. Infiniband
• D. Fibre Channel

Answer: A

NEW QUESTION 21
Refer to the exhibit.

During a requirements gathering meeting, the customer identified a desire to use a codec for editing content that will take up the least amount of space on their Isilon cluster. The content is 1920x1080 HD.
Based on the provided list of codecs, which codec would minimize the storage requirement?

• A. DNxHD 145 8 Bit
• B. DPX 8 Bit
• C. ProRes 444 12 Bit
• D. DNxHD 220 10 Bit

Answer: A

NEW QUESTION 22
Which Isilon feature increases available space by consolidating copies of identical blocks of data?

• A. SmartDedupe
• B. SmartQuotas
• C. Compliance
• D. FlexProtect

Answer: A

NEW QUESTION 23
An Isilon customer wants the ability to provide low latency I/O for their files due to a workflowinvolving small, random reads and writes. Which SSD strategy is most effective for this use case?

• A. Data on SSDs
• B. Metadata read acceleration
• C. Metadata read/write acceleration
• D. Avoid SSDs

Answer: A

NEW QUESTION 24
You are designing an Isilon 5-node cluster configuration for a customer who wants to store user home
directories on the new cluster. Each user has 100 small files of 4KB each, 100 medium sized files of 80KB each, and 100 larger files of 512KB each. How much space is occupied by the medium sized files data blocks on an N+1n cluster?

• A. 9,600KB
• B. 15,360KB
• C. 16,000KB
• D. 25,600KB

Answer: A

NEW QUESTION 25
What does Isilon OneFS use to re-write data when a disk read fails?

• A. Dynamic Sector Repair
• B. NVRAM
• C. Isilon Data Integrity
• D. CRC

Answer: A

NEW QUESTION 26
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 27
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