VNX Solutions Design Exam for Technology Architects (E20-324) Free Practice Test

Question 1

A customer is using Unisphere Analyzer to view performance information for an existing VNX array. They are using Classic LUNs for a media editing solution and are trying to determine FAST Cache usage for the LUNs, but the FAST Cache statistics are not being displayed.
What do you advise?

A. Disable and re-enable FAST Cache to clear statistics

B. Enable advanced checkbox in Analyzer settings

C. Restart statistics logging with FAST Cache checkbox enabled

D. FAST Cache statistics are not available for Classic LUNs

Correct Answer: B

Question 2

In which way do VNX Snapshots differ from SnapView Snapshots?

A. VNX Snapshots work with RAID Group LUNs or pool LUNs; SnapView Snapshots work only with pool LUNs

B. VNX Snapshots use redirect on first write; SnapView Snapshots use copy on first write

C. VNX Snapshots consume large amounts of pool capacity; SnapView Snapshots consume small amounts of pool capacity

D. VNX Snapshots require Reserved LUN Pools; SnapView Snapshots use space from same pool as Primary LUN

Correct Answer: B

Question 3

Refer to the exhibit. The example shows the queue length over a period of 10 polling intervals.

Based on the graph shown, what is the value for average queue length?

A. 9.0

B. 7.2

C. 3.6

D. 1.8

Correct Answer: C

Question 4

A customer is considering the VNX to support the SQL environment. What storage feature of the VNX provides the best performance for the SQL application?

A. Thin pool LUNs

B. RAID Group LUNs

C. FAST Cache

D. FAST VP

Correct Answer: C

Question 5

Your customer wants to set up MirrorView/S between VNX arrays in their primary and secondary data centers. The two data centers are located 50 kilometers apart. Both VNX arrays are running Unisphere version 1.1.
How can this be done?

A. Using Unisphere GUI

B. Using Unisphere Service Manager

C. Using Navisphere Secure CLI

D. Using ESRS

Correct Answer: A

Question 6

Which criteria is used by AVM when selecting dVols from a traditional RAID group to create a pool entry?

A. LUNs must come from the same RAID groups, have the same RAID configuration cannot be more than 14TB in size.

B. LUNs must come from different RAID groups, have the same size and RAID configuration, cannot be more than 14TB in size.

C. LUNs must come from the same RAID groups have the same size and RAID configuration, cannot be more than 16TB in size.

D. LUNs must come from different RAID groups, have the same RAID configuration, cannot be more than 16TB in size.

Correct Answer: B

Question 7

Your customer is designing a VNX file system using CIFS quotas with a supported third-party application.
What software option is required to support this implementation?

A. VAVA

B. VEPA

C. VEE

D. CEPA

Correct Answer: C

Question 8

A customer has purchased a VNX array and is in the process of allocating RAID 5 (4+1)
storage. They have asked you for best practices on number and placement of LUNs for the Reserved LUN pool.
Which response provides the best answer?

A. Reserved LUNs can be of different sizes, but there should be no more than 15 in a 4+1 RAID 5 Group.

B. Reserved LUNs can be of different sizes, but there should be no more than 25 in a 4+1 RAID 5 Group.

C. All Reserved LUNs should be the same size, with no more than 25 in a 4+1 RAID 5 Group.

D. All Reserved LUNs should be the same size, with no more than 15 in a 4+1 RAID 5 Group.

Correct Answer: B

Question 9

A customer would like to implement SnapView but has expressed concern about performance. Which applications will cause performance issues?

A. Applications with small-block random writes

B. Applications with large-block random writes

C. Applications with small-block continuous writes

D. Applications with large-block continuous writes

Correct Answer: A

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EMC VNX Solutions Design Exam for Technology Architects (E20-324) Free Practice Test