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Exam : EMC E20-500
Title : EMC Storage and Information Infrastructure Exam

1. What does Inter-Switch Link trunking do?
A. Allows ports on the same blade to be used for ISL
B. Enables ISL between switches to reach up to 200 km distances
C. Prohibits a port from becoming an E_Port for fabric security
D. Aggregates the bandwidth of multiple ISLs
Answer: D

2. When data is written to a SnapView source LUN, at what point are the data chunks saved to the Reserved LUN pool?
A. During synchronization
B. Every time data is changed on the source
C. Every time write cache is flushed
D. When source data is changed for the first time
Answer: D

3. After a Data Mover failover, how is the failback operation performed?
A. Automatically
B. Data Mover failover is not supported
C. Manually
D. Recovery is not needed until another failure occurs
Answer: C

4. What are the primary goals of an optimization engagement?
A. Avoid future problems, reduce complexity, enable high availability
B. Fix existing problems, avoid future problems, reduce costs
C. Fix existing problems, improve utilization, increase efficiency
D. Reduce costs, reduce complexity, increase efficiency
Answer: D

5. A customer implemented BCVs with mirrors for use with the most critical business volumes. The standard volumes were established with the BCVs at the start of the day, but later in the day the customer discovered data corruption. Which action would enable a restore from uncorrupted BCV volumes?
A. Differential Split
B. Instant Split
C. Protected Restore
D. Reverse Split
Answer: D

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