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A customer is deploying a new Microsoft Exchange environment and has requested assistance with the
associated disk design. They are deploying Exchange for 850 users with an average of 3 I/Os per user.
They expect a 60% read and 40% write distribution.
The customer would like to know the number of disks required for both RAID 5 and RAID 1/0 DMX
configurations with 15k rpm drives. How many disks are required for each configuration type?
A. RAID 5 28 and RAID 1/0 18
B. RAID 5 31 and RAID 1/0 20
C. RAID 5 38 and RAID 1/0 24
D. RAID 5 43 and RAID 1/0 28
Answer: A
 A customer plans to create two regional offices that are between 800 and 2,000 km away from their
main data center. Each regional office will have a data center that will serve four to six branch offices
between 30 and 50 km away.
At the close of business each evening the customer will shut down the application and transmit changes
to each regional office. The amount of new information sent from the head office each night will vary from
0.5 and 1.5 GB. Later each night, an application at the regional offices will read the data from the head
office and generate approximately 50 MB of new rate information appropriate for its branch offices.
What is the most cost-effective EMC solution?
A. 1. Configure CLARiiON arrays in each office.
2. Use MirrorView/A and T3 networks for all data transfers.
B. 1. Configure Symmetrix arrays in the head office and CLARiiONs in the regional offices.
2. Use OC-3 networks to transmit the same master copy of data from the head office to the regional
offices using Open Replicator.
3. At the regional offices, create a snap of the data received and transmit the changes to the branch
offices using SAN Copy.
C. 1. Configure Symmetrix arrays at all the main data centers and CLARiiONs at the regional and branch
offices.
2. Use OC-3 network links between the main data centers.
3. Use DS-3 between the regional and branch offices.
4. Use SRDF/DM for data transfer in each case.
D. 1. Configure Symmetrix arrays at the head office and regional offices.
2. Configure CLARiiONs at the branch offices.
3. Use SRDF/DM and T1 network links between the head office and regional offices.
4. Use Open Replicator incremental offline push to distribute rate information to the branch offices
using T1 network links.
Answer: D
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1. A customer is deploying a new Microsoft Exchange environment and has requested assistance with theÂ
associated disk design. They are deploying Exchange for 850 users with an average of 3 I/Os per user.Â
They expect a 60% read and 40% write distribution.Â
The customer would like to know the number of disks required for both RAID 5 and RAID 1/0 DMXÂ
configurations with 15k rpm drives. How many disks are required for each configuration type?Â
A. RAID 5 28 and RAID 1/0 18Â
B. RAID 5 31 and RAID 1/0 20Â
C. RAID 5 38 and RAID 1/0 24Â
D. RAID 5 43 and RAID 1/0 28Â
Answer: AÂ
2. A customer plans to create two regional offices that are between 800 and 2,000 km away from theirÂ
main data center. Each regional office will have a data center that will serve four to six branch officesÂ
between 30 and 50 km away.Â
At the close of business each evening the customer will shut down the application and transmit changesÂ
to each regional office. The amount of new information sent from the head office each night will vary fromÂ
0.5 and 1.5 GB. Later each night, an application at the regional offices will read the data from the headÂ
office and generate approximately 50 MB of new rate information appropriate for its branch offices.Â
What is the most cost-effective EMC solution?Â
A. 1. Configure CLARiiON arrays in each office.Â
  2. Use MirrorView/A and T3 networks for all data transfers.Â
B. 1. Configure Symmetrix arrays in the head office and CLARiiONs in the regional offices.Â
  2. Use OC-3 networks to transmit the same master copy of data from the head office to the regionalÂ
offices using Open Replicator.Â
  3. At the regional offices, create a snap of the data received and transmit the changes to the branchÂ
offices using SAN Copy.Â
C. 1. Configure Symmetrix arrays at all the main data centers and CLARiiONs at the regional and branchÂ
offices.Â
   2. Use OC-3 network links between the main data centers.Â
   3. Use DS-3 between the regional and branch offices.Â
   4. Use SRDF/DM for data transfer in each case.Â
D. 1. Configure Symmetrix arrays at the head office and regional offices.Â
   2. Configure CLARiiONs at the branch offices.Â
   3. Use SRDF/DM and T1 network links between the head office and regional offices.Â
   4. Use Open Replicator incremental offline push to distribute rate information to the branch officesÂ
using T1 network links.Â
Answer: DÂ
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28. A customer has been running a CX3-40 for the past year to present SAN LUNs. The customer wants to use network shares for a number of clients. You want to propose a new NS40G for the account.Â
Which information must you have to ensure that the proposed solution will meet the customer’s needs?Â
A. Celerra Heath CheckÂ
B. EMCGrabÂ
C. EMCReporteÂ
D. Pre-Upgrade Health CheckÂ
Answer: BÂ
29. A customer has a DMX3000 at Headquarters Site X. The customer currently runs two applications onÂ
the DMX3000, both of which need to be replicated for disaster recovery (DR) purposes. The customerÂ
cannot tolerate any data loss. The first application needs to be replicated to Site Y,Â
which is 20 miles away. The second application needs to be mirrored to a different site, Site Z, which is 15Â
miles away.Â
Which SRDF solution should you suggest?Â
A. Concurrent SRDF/A to Sites Y and ZÂ
B. Concurrent SRDF/S to Sites X and ZÂ
C. SRDF/S to Site Y and SRDF/DM to Site ZÂ
D. SRDF/S to both sitesÂ
Answer: DÂ
30. A customer has just heard about disk drives with built-in encryption capabilities. The customer is veryÂ
excited about encrypting data at rest on their storage arrays. Their applications process critical data andÂ
have high-availability requirements. The customer does not want to modify any of their existingÂ
applications to take advantage of encryption capabilities.Â
Which alternative technology should you propose that will offer the most protection for their data?Â
A. Cisco Storage Media EncryptionÂ
B. Data Loss Protection SuiteÂ
C. PowerPath with EncryptionÂ
D. RSA File ManagerÂ
Answer: C
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26. A customer has a DMX-3 that is replicated using SRDF/A and is experiencing SRDF/A drops due toÂ
intermittent network link loss. Which features can be designed into the existing environment to mitigateÂ
RPO exposure?Â
A. Dynamic Cache Partitioning and System Buffer ExtensionÂ
B. Dynamic write pending ceiling and Symmetrix File SystemÂ
C. Quality of Service and SRDF Mode ChangeÂ
D. SRDF/A Transmit Idle and Delta Set ExtensionÂ
Answer: DÂ
27. One design goal for storage security is to map server access to storage. This is based on the securityÂ
classification of the data utilized by the particular server. As a best practice, which level of granularityÂ
should be used to enforce a particular security access level within a storage device?Â
A. Disk director portÂ
B. Individual disk deviceÂ
C. LUNÂ
D. Storage interface portÂ
Answer: C
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24. You have been asked to design a new centralized backup solution for a customer. The customerÂ
sent a list with the number of servers, amount of data, daily change rate, annual growth rate, andÂ
information about the backup policy. The customer needs to satisfy their operational restore requests as quickly as possible.Â
You have decided to design a backup-to-disk solution, directing all backups to disk and then staging theÂ
data to tape after operational restore needs are satisfied. In order to define the retention period on disk,Â
what is an important piece of information you will need to analyze?Â
A. Data mobility requests over timeÂ
B. Frequency of restore requests over timeÂ
C. Recovery point objectiveÂ
D. Type of dataÂ
Answer: BÂ
25. You must design a backup solution for an existing Celerra NS80 customer. The customer has decidedÂ
that the expense of expanding their tape hardware infrastructure to support the additional load is notÂ
justified because the technology is not reliable and is outdated.Â
The customer’s decision criteria are.Â
1. PerformanceÂ
2. Least disruption to the production environmentÂ
3. Ease of maintenanceÂ
Which alternate solution should you use to back up the Celerra?Â
A. Add a second NS80 with FC disks and replicate to itÂ
B. Add a second NS80 with SATA disks and replicate itÂ
C. Add FC disks to the NS80 and back up using VTLUsÂ
D. Add SATA disks to the NS80 and back up to diskÂ
Answer: C