EMC Certification

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Exam : EMC E20-815
Title : Symmetrix Business Continuity Expert Technology Architects


1. A customer is consolidating 2,000 seats from Lotus Notes to one Microsoft Exchange 2007 server. They want to provision each Exchange storage group allowing for 100 "Heavy" profile users. Mailbox quotas are set at 500 MB per mailbox.
Deleted item recovery is set to the defaults and a full pass of database maintenance takes 48 hours to complete. Content indexing is enabled and the customer has no need for offline maintenance.
What is the minimum LUN size that can be allocated for each Exchange Storage Group's database, while meeting the customer's needs?
A. 25 GB
B. 95 GB
C. 100 GB
D. 125 GB
Answer: C

2. A customer is migrating from Microsoft Exchange 2003 to Exchange 2007. The customer is trying to estimate the user load profile that fits their environment for the purposes of sizing the disk subsystem.
Which condition could cause the customer to underestimate the IOPS required for their environment?
A. Database maintenance
B. Deleted items retention
C. Mobile device users
D. Nested subfolders with many thousands of items
Answer: C

3. Click the Exhibit button.
You are migrating a customer's Microsoft Exchange 2007 server from DAS to SAN. The LUNs shown in the exhibit are presented to the server. You must select six LUNs to use for databases and logs.
According to EMC best practice, which Symmetrix DMX devices should you select?
A. 00D, 005, 01D, 02F, 055, and 05D
B. 005, 00D, 015, 01D, 02F, and 055
C. 005, 015, 01D, 02F, 055, and 05D
D. 015, 01D, 005, 02F, 055, and 05D
Answer: B

4. Click the Exhibit button.
A customer is planning to consolidate 2,000 "Average" profile Microsoft Exchange 2007 users from DAS to SAN using newly added 146 GB 15,000 rpm FC drives on their DMX-4. The exhibit shows perfmon data gathered from the database LUN of the mailbox server as it now performs. In addition, the exhibit reflects the level of concurrency in the environment. Anticipated growth is expected to be no greater than 20%.
Following EMC best practices guidelines, what is the minimum number of RAID 1 protected spindles needed to support the performance profile of the Exchange transaction logs?
A. 1
B. 2
C. 4
D. 6
Answer: A

5. Click the Exhibit button.
You are migrating a customer's Microsoft Exchange 2007 server from DAS to SAN. The LUNs shown in the exhibit are presented to the server. You must select six LUNs to use for databases and logs.
According to EMC best practice, which Symmetrix DMX devices should you select?
A. 005, 00D, 015, 01D, 02F, and 055
B. 005, 00D, 015, 01D, 02F, and 05D
C. 005, 00D, 015, 02F, 055, and 05D
D. 00D, 015, 01D, 02F, 055, and 05D
Answer: D

6. A customer is consolidating 2,000 seats from Lotus Notes to one Microsoft Exchange 2007 server. They want to provision each Exchange storage group allowing for 100 "Very Heavy" profile users. Mailbox quotas are set at 500 MB per mailbox. Deleted item recovery is set to the defaults and a full pass of database maintenance completes nightly. Content indexing is enabled and the customer has no need for offline maintenance.
What is the minimum LUN size that can be allocated for each Exchange Storage Group's database, while meeting the customer's needs?
A. 25 GB
B. 113 GB
C. 119 GB
D. 133 GB
Answer: C

7. Click the Exhibit button.
A customer is planning to consolidate 2,000 "Average" profile Microsoft Exchange 2007 users from DAS to SAN using newly added 146 GB 15,000 rpm FC drives on their DMX-4. The exhibit shows perfmon data gathered from the database LUN of the mailbox server as it now performs. In addition, the exhibit reflects the level of concurrency in the environment. Anticipated growth is expected to be no greater than 20%.
Following EMC best practices guidelines, what is the minimum number of RAID 1 protected spindles needed to support the Exchange database?
A. 2
B. 4
C. 6
D. 8
Answer: A

8. A customer is migrating from Microsoft Exchange 2003 to Exchange 2007. They want to provision each mailbox server with 2,000 users, allowing for 100 "heavy" profile users per Exchange storage group. In designing an SLA for the customer, you determine that the customer requires the use of recovery storage groups for disaster recovery purposes.
Which consideration must be made when architecting this solution?
A. A maximum of 50 production storage groups can be hosted per Exchange Server
B. A maximum of four production storage groups can be hosted per Exchange Server
C. Exchange 2007 Enterprise Edition is required
D. Server hosting the recovery storage group must be in a separate Active Directory forest from the source storage groups
Answer: C

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