VNX Solutions Expert Exam for Implementation Engineers (E20-885) Free Practice Test

Question 1

A corporation has configured high available CIFS shares using VDMs and VNX Replicator. During testing, the VDM and user file systems switch over successfully. However, 30 minutes later the Windows clients still cannot access their shares.
What is the most likely cause of this problem?

A. The CIFS service is not running on the secondary site.

B. VDMs are not configured on the secondary site.

C. Source side VDM Replication licensing is not enabled.

D. Source side file systems are not correctly sized.

Correct Answer: A

Question 2

You receive a call from a customer asking why they are not getting optimal performance on their new Block pool LUNs that they created last week.
How could the customer obtain more predictable performance?

A. Move LUNs to a new pool and select the highest tier

B. Move LUNs to a new pool and select the lowest tier

C. Move to classic LUNs

D. Make sure to use thin LUNs

Correct Answer: C

Question 3

A customer currently has a RP/SE single cluster system. They want to add an additional VNX array for replication. The business requires replication from the existing VNX to the new one.
How would they best implement this configuration?

A. Purchase an additional RP/SE cluster.
Install it using Deployment Manager, and then connect it to the existing cluster.

B. Zone the new VNX FC ports to the existing RPA ports.
Create new Consistency Groups using Unisphere for RecoverPoint.

C. Purchase an additional RP/SE license for the new VNX.
Add the VNX to the existing cluster using Deployment Manager.

D. Connect the VNX to the existing SAN.
Connect the new array to the existing cluster using Deployment Manager.

Correct Answer: A

Question 4

When using pool-based thick LUNs for the SnapSure SavVol, what should be done in an environment containing FAST Cache?

A. Use a dedicated pool for SavVols Enable FAST Cache

B. Use the same pool for SavVols as the PFS pool Enable FAST Cache

C. Use a dedicated pool for SavVols Disable FAST Cache

D. Use classic LUNs from traditional RAID Groups Enable FAST Cache

Correct Answer: C

Question 5

What action in RecoverPoint/SE will cause a full volume sweep?

A. Changing the assigned primary RPA for a Consistency Group

B. Rebooting the primary RPA

C. Pausing replication for a Consistency Group

D. Detaching the Write Splitter for a replication volume

Correct Answer: D

Question 6

A customer has two sites, with a VNX system at each site. The local site has four application LUNs of 512 GB each. They are replicated to the remote site with MirrorView/S. The link between the sites has an effective bandwidth of 100 MB/s. The application generates 1,000 random IOPS of 4 kB with a 3:1 R/W ratio on each of the LUNs. The link fails for five minutes.
How much data is copied to the secondary LUNs as part of the resynchronization process?

A. 36.6 GB

B. 18.3 GB

C. 73.2 GB

D. 4.6 GB

Correct Answer: C

Question 7

A customer wants to reduce the performance impact incremental SAN Copy (ISC) has on their source LUN. They plan to use a clone between the current source and destination LUN, and then use the fractured clone as the new ISC source LUN. The source LUN performs four hundred 8 KB random I/O per second, with a 3:1 read/write ratio.
The source LUN is 512 GB in size, and the clone will be fractured for five minutes.
How much data will be copied to the destination LUN?

A. 15,000 MB

B. 937.5 MB

C. 7,500 MB

D. 3,750 MB

Correct Answer: C

Question 8

A customer deployed a single EMC RecoverPoint 2-node cluster with Virtual RPA configured with RecoverPoint/SE license at the primary site. They want to scale-up the environment.
With the current RecoverPoint/SE license, how many vRPAs can be added?

A. 4

B. 8

C. 6

D. 0

Correct Answer: C

Question 9

Which feature lets you enable data access and create storage groups on a VNX array?

A. LDAP

B. SP Cache

C. Access Logix

D. LUN Mapping

Correct Answer: B

Question 10

An EMC VNX is enabled for FAST Cache using four 200 GB Flash drives. Ten additional Flash drives are available for SQL databases. Which SQL database object would be best suited to utilize these drives?

A. Databases with large, sequential I/O

B. Heavily used log volumes

C. Databases on LUNs with read caching enabled

D. Database components such as tempDB

Correct Answer: D

Question 11

A customer requires their FAST Cache configuration to be destroyed in order to increase FAST Cache size. However, they are concerned about the performance impact that this will cause.
What should you tell the customer to expect?

A. Temporarily bypass of DRAM cache by all write I/O

B. Increased write activity on FAST Cache disks from LUNs that were FAST Cache enabled

C. Increased write activity on data disks from LUNs that were FAST Cache enabled

D. Temporary suspension of all write I/O to DRAM cache

Correct Answer: C

Question 12

You are planning for fracture granularity.
What granularity should you use to track updates to a 1 TB clone source LUN?

A. 512 KB

B. 128 KB

C. 64 KB

D. 256 KB

Correct Answer: C

Question 13

A customer configures a SAN Copy session. They connect to the destination storage system and select a destination LUN. When they run the SAN Copy session, it fails. What could be a cause of the session failure?

A. SAN Copy initiators are not configured.

B. SAN Copy ports are not configured.

C. VNXs are not in the same domain.

D. LUNs are not the same RAID type.

Correct Answer: B

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EMC VNX Solutions Expert Exam for Implementation Engineers (E20-885) Free Practice Test