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EMC XtremIO 3.x Flash Storage Solutions Sample Questions:

1. What accurately describes a use case for Database/Analytic environments?

A) Low, small block random I/O activity.
Application environments that tolerate high response times.
B) High, small block random I/O activity.
Application environments that require very low and consistent response times.
C) High, large block sequential I/O activity.
Application environments that require very low and consistent response times.
D) Low, small block sequential I/O activity.
Application environments that requires very low and consistent response times.

2. An XtremIO storage array reports an overall efficiency of 30:1. Which combination of Deduplication Ratio (DR), Compression Ratio (CR), and Thin Provisioning Saving (TPS) would achieve this efficiency?

A) DR = 5.0:1; CR = 2.0:1; TPS = 66%
B) DR = 2.5:1; CR = 4.0:1; TPS = 30%
C) DR = 4.0:1; CR = 2.5:1; TPS = 70%
D) DR = 3.0:1; CR = 2.0:1; TPS = 50%

3. XtremIO storage is assigned to a host. If the host has the HBA execution throttle set to 256, what effect will this have on the system?

A) Queue depth for each HBA port will be set to 256
B) Each LUN visible to the port will have a queue depth set to 256
C) Each LUN visible to the port will have a queue depth set to 256 / <# HBA ports>
D) Aggregate queue depth for all HBA ports will be set to 256

4. Which state should a properly configured XtremIO cluster display when issuing the show-clusters-info command?

A) Active, active
B) Healthy, connected
C) Healthy, locked
D) Active, connected

5. Why does XtremIO thin provisioning cause no performance degradation?

A) All metadata is kept in Storage Controller SSDs
B) SSDs perform metadata reads at sub-millisecond latency
C) SSDs perform metadata writes at sub-millisecond latency
D) All metadata is kept in Storage Controller RAM

Solutions: