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2014年1月23日星期四

利用に値するEMC E20-554認定試験の最新問題集

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試験番号:E20-554問題集
試験科目:Isilon Design Specialist Exam for Technology Architects
最近更新時間:2014-01-23
問題と解答:全81問
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NO.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 application are you using to create directories?
B. Is your datacenter ISO9001 compliant?
C. What protocols are accessing your NAS?
D. How many users are in your Directory Services?
Answer: C

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NO.2 What key considerations should be kept in mind when designing a 300TB solution?
A.Workflow management Defining class of service Time of day services RPO and RTO Data retention
and backup
B.Defining class of service Time of day services ROI and TCO Data retention and backup
C.SmartPools Smartconnect Snapshots Space for snapshots
D.Always include 2% SSD SmartPools Smartconnect Snapshots InsightIQ
Answer: A

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NO.3 When designing Isilon solutions, which issue should you pay special attention to?
A. Create a workflow document
B. Conduct stakeholder interviews
C. Follow all SSD sizing rules
D. Meet customer expectations
Answer: D

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NO.4 You have had several discussions with your customer in the processor design industry. They
have stated that they want a Scale-Out NAS platform for their design environment. Their most
significant responses were "We have 125 design engineers accessing large diagrams and we need
high throughput to support them. Can we also get the highest performance available? We need to
stay ahead of our competitors." Other areas you discussed were their data retention policies and
workflow after the chip design is completed. They plan to archive the design files but the files must
stay on line.
What is your initial node recommendation?
A. A-Series nodes for the active diagrams and X-Series nodes for the archives.
B. S-Series nodes for the active diagrams and NL Series nodes for the archives
C. X-Series nodes for the active diagrams and NL 400 nodes for the archives
D. X-Series nodes with SSD for the active diagrams and NL nodes for the archives
Answer: B

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NO.5 Your customer purchased an Isilon cluster with eight X400 nodes for Home Directories. Your
follow-up discussions have uncovered an opportunity to expand the cluster to support the Legal
Department. As you prepare to complete the Workflow Profile Document, you meet with the
customer to discuss data protection.
Which key areas should you address?
A.Default cluster protection level Additional directory level protections Snapshots and replication
B.WORM requirements Network ports for replication Snapshots for user restores
C.Default cluster protection level Backup windows and processes Concurrency of user access
D.Protocols (SMB, NFS, FTP , HTTP , HDFS) Authentication and Directory Services Performance and
latency concerns
Answer: A

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NO.6 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 applications access this storage?
B. What type of racks are in your datacenter?
C. Are you using a KVM to access your storage?
D. How many NICs do your clients have?
Answer: A

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NO.7 You are reviewing an opportunity with a trusted advisor. You both discover gaps in the initial
solution design.
Each iterative discussion with the customer helps you define the solution better. The documents
produced capture the customer's requirements.
What else needs to occur to refine the sizing considerations?
A. Complete your Solution Design Document and forward to EMC consulting.
B. Validate the Workflow Profile Assessment and test the solution against your findings.
C. Review you assumptions and ask the customer what business issue you're solving.
D. Provide the CIO with the findings and gain commitment to a Proof of Concept.
Answer: B

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NO.8 When conducting high-level interviews with stakeholders of a project, what are the key
questions that should be asked?
A.How much usable storage are you looking for? What client OS will access this storage? Which
applications will access this storage?
B.Which backup application is in use today?
What is your change rate?
How many clients will connect to the cluster?
C.What does your network architecture look like?
Do you have existing NAS infrastructure?
Do you have 10Gb or 1Gb ethernet?
Which applications will access this storage?
D.Who are the application owners?
How much usable storage is needed?
What applications will be accessing the storage?
How many users are in your Active Directory?
Answer: A

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NO.9 You set up a meeting to gather information on a new project with the IT manager and plan to
use a workflow profile assessment (WPA) to document the requirements.
Why is it recommended to talk to as many stakeholders as possible?
A. Completing this document gives sales a list of who the stakeholders are at customer site.
B. Helps downstream personnel, such as implementation and delivery, to have a clearer
understanding of the requirements.
C. Using workflow profile enables sales to take this information to EMC consulting for review to
validate the configuration.
D. Using the WPA tool will give you the best "big picture" to see things such as block size, de-dupe,
file size and volumes.
Answer: B

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NO.10 When designing Isilon solutions, what issues should you pay special attention to?
A.Avoid being too enthusiastic over the technology Balance technical and business requirements
Provide options Design to meet customer expectations
B.Workflow Document Solutions Document Application types Data strategy
C.Solutions Document Balance technical and business requirements Provide options Practical vs.
theoretical implementations
D.Solutions Document Balance technical and business requirements Downstream hand-off Design
to meet customer expectations
Answer: A

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2013年10月7日星期一

EMC certification E20-554 exam training materials

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Exam Code: E20-554
Exam Name: EMC (Isilon Design Specialist Exam for Technology Architects)
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NO.1 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? RA
A. 1
B. 5
C. 10
D. 15
Answer: B

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NO.2 A customer's cluster contains three X200 (24 GB RAM, 3 TB drives) nodes, and three X400 (48
GB RAM, 1 TB drives) nodes.
All nodes are configured in a single pool.
All data is protected at N+2. After upgrading OneFS to 7.0, the Isilon Web interface indicates that
files are not fully protected. RA
A. Add 24 GB RAM to each of the X200 nodes
B. Recreate the original pool using the Isilon Web interface
C. Add two X200 nodes and two X400 nodes
D. Recreate the original pool using the command line interface
Answer: C

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NO.3 You are asked to size a cluster for a file sharing environment. nfsstat indicates that 75% of the
requests are namespace operations (e.g., GETADDR, SETADDR). There will be 8,000 active Linux
users, connecting over NFS? RA
A. Five X400 (66 TB) 48 GB RAM, 1.2 TB SSD, N+2:1
B. Eight X200 (27 TB) 12 GB RAM, 600 GB SSD, N+2
C. Eight X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1
D. Eight X200 (36 TB) 48 GB RAM, no SSD, N+2:1
Answer: C

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NO.4 A potential customer is considering replacing a four year old, Linux-based NFS server with
40TB of usable capacity.
The existing system supports home directories, an internal website, and a content repository for the
customer's content management system.
The customer is concerned about performance of any new solution because they expect to double
workload in the content management system. RA
A. syslog and vmstat
B. Perfmon and sysstat
C. isi statistics and Wireshark
D. iostat and nfsstat
Answer: D

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NO.5 You have scheduled a meeting with a prospective customer in the Life Sciences vertical
market.
Which Isilon features should be presented to them? RA
A. SyncIQ, Antivirus, 10 GigE support and HDFS
B. SmartPools, HDFS, 10 GigE support and SmartQuotas
C. SmartLock, HDFS, SmartPools and SmartQuotas
D. SyncIQ, SmartLock, HDFS and SmartConnect
Answer: B

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NO.6 Click on the calculator icon. 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? RA
A. 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
B. Create a cluster configuration specifying HDFS, NFS, and CIFS protocols; select 19 x X400 nodes
with 144TB per node, and Enhanced Support
C. 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
D. Ask them to identify how the current data is accessed, where the data is accessed from, and who
is accessing the data
Answer: D

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NO.7 You are sizing an Isilon Cluster for a new customer.
Analyzing their workflow, you determine that they have a small block random read workload.
What is the most important factor to consider when sizing this solution? RA
A. IOPS
B. Bandwidth
C. Latency
D. Headroom
Answer: A

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NO.8 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? RA
A. 6 nodes
B. 10 nodes
C. 14 nodes
D. 18 nodes
Answer: B

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NO.9 Your customer is looking for a storage solution that will be able to store seven million three
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? RA
A. 3 NL400 nodes
B. 3 X400 nodes
C. 4 X200 nodes
D. 5 S200 nodes
Answer: C

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NO.10 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?
RA Exhibit:
A. It is mostly sequential reads
B. It is meta data intensive
C. It uses large read requests
D. It contains mostly random writes
Answer: B

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