Question 1.
Your customer recently changed from using MirrorView for all its distance replication to using MirrorView/ A. Its scripts took care of promotion in the case of a failure, and ran without incident when tested in the MirrorView environment. Those same scripts now fail, with errors which the customer says are related to permissions. 

What is a possible cause of the failure?

A. Theagent.config file does not exist in the user home directory
B. The user names and host names do not appear in the privileged user list
C. Theagent.config file does not exist in the Navisphere Agent directory
D. The Navisphere security file does not exist in the user home directory

Answer: D

Question 2.
YOY Company wants to use MirrorView Asynchronous. YOY wants to use double remote copies from primary volumes applications running on an existing CX700. In order to do this, YOY plans to buy two CX500s at separate geographical sites. You are responsible for providing a solution based on MV/A with two secondary remote copies as requested by YOY.

Can you design this solution?

A. Yes, you can achieve the customer's requirements based on the M/VA Fan-out rule.
B. Yes, you can achieve the customer's requirements based on the MV/A fan-out rule but only if 
    YOY buys two CX700s instead of CX500.
C. No, you cannot achieve the customer's requirements based on the MV/A Fan-out rule but only 
    if YOY buys an extraSnapView license for the remote CX.
D. No, you cannot achieve the customer's requirements based on the MV/A Fan-out rule.

Answer: D

Question 3.
ZDR Corporation has a CX700 at a primary site and a CX500 at a DR site which is 250 miles away. ZDR does not want to impact the production LUN while copying to the DR site and it still needs to maintain a recoverable copy of data at all times. ZDR's backup policy is to write data every 30 minutes to the DR site. The company has a T3 line between the sites. The data change ratio is 15%. 

What is the best solution?

A. MirrorView/A
B. MirrorView
C. SnapView /Snapshot
D. SAN Copy

Answer: A

Question 4.
MQT, Inc. divided each of its DAEs into an eight disk RAID Group, a six disk RAID Group, and a one disk RAID Group. MQT uses the eight disk group to bind 4+4 RAID-1/0 LUNs, which are the Source LUNs for its application. The company intends to use the six disk group to bind 5+1 RAID- 5 LUNs for use as Clones. The remaining disk is used as a Hot Spare. All of MGT's Source LUNs are bound as either 625 MB or 513 MB in size. It binds the Clones as 625 MB and 513 MB. When MGT wishes to start the cloning process, it discovers that it cannot create Clone Groups.

What is the likely cause of the problem?

A. The CLARiiON does not have two Clone Private LUNs allocated
B. 5+1 RAID-5 LUNs cannot be used as Clones for 4+4 RAID-1/0 Source LUNs
C. LUNs on RAID Groups with different stripe sizes are not the same size
D. The memory size allocated for write cache is too small to allow Clones

Answer: A

Question 5.
The BMU Company runs an application with several LUNs that it wants to replicate remotely. You obtain the following information:
There are five 4+1 RAID-5 LUNs of 256 GB each
There are two RAID-1/0 LUNs of 128 GB each
The application uses 4 KB random I/Os on the RAID-5 LUNs, with a read/write ratio of 4:1
On the RAID-1/0 LUNs, the application writes sequential 4 KB I/Os, with no reads
Each LUN is on its own RAID Group, consisting of 146 GB drives
Average seek distance on the RAID-5 LUNs is 35 GB
Average seek distance on the RAID-1/0 LUNs is 0 GB
Each RAID-5 LUN performs 400 IOPs
Each RAID-1/0 LUN performs 500 IOPs
RPO is 30 minutes Assume a 2:1 compression ratio for all data.

What is the link speed needed to connect the MirrorView/A sites?

A. 208 Mbps
B. 104 Mbps
C. 52 Mbps
D. 156 Mbps

Answer: C

Question 6.
You designed a CLARiiON configuration on a metaLUN with ATA disks because the customer was convinced that this configuration would save both space and costs. Your design involved concatenating metaLUNs to allow more scalabilty on space utilization. The Customer's application runs only in single-thread with a large block size. After the solution was implemented, the customer complained about performance. 

What do you change to solve the poor performance problem?

A. Use Volume Manager to create multithreading
B. RecreatemetaLUN with an ESM of 2
C. Use stripedmetaLUN to increase performance
D. Change the disk technology

Answer: A

Question 7.
This EMC product uses patented replication technology to make it easy to protect data in Windows environments. It can make 1-to-n copies of Windows production data in WAN or LAN environments, with no limitations on the distance between Windows servers. Any data written to disk by the server can be captured and replicated to one or more secondary disks, for any Windows application stored on any EMC CLARiiON array. 

What is it?

A. MirrorView A
B. SAN Copy
C. Incremental SAN Copy
D. LegatoRepliStor

Answer: D

Question 8.
LMA Manufacturers is complaining about application performance issues. You capture a NAR file during a peak period and notice the following about its 4+1 RAID-5 LUN: 
Reads and writes are 64 KB in size
LUN utilization is 70%
Disk utilization is 100%
Disk crossings are 100%
Write cache hit ratio is 1.0
Cache rehit ratio is 0.0
Full stripe write/s are around .2 of throughput

Which statement is true?

A. The data is misaligned. Sequential writes should cause disk crossings lower than 100%
B. Sequential writes should cause the write cacherehit ratio to be higher than is exhibited here
C. Sequential writes are responsible for the disk crossings and the full stripe writes
D. I/O sizes of 64 KB will cause disk crossings. More disks will improve performance

Answer: A

Question 9.
The BTL Co, located in New York City, has a backup site in New Jersey. It also has a large office in Seattle. Its application uses 8 KB I/Os, with a high locality of reference for writes. Currently the company's DR solution consists of backing up data to tape twice at the New York site and shipping one copy of the tapes to New Jersey, and the other copy to Seattle. You have explained the benefits of a DR solution to BTL, and the company wants to use all three sites as part of its configuration. BTL has an RPO of 30 minutes if they need to recover from the New Jersey site, and 240 minutes if they need to recover from the Seattle site.

Which solution do you propose?

A. Incremental SAN Copy betweenNew York City and New Jersey, with an update every 30 
    Minutes Use a Clone of the Destination LUN as the Source LUN for a full SAN Copy transfer to 
    the Seattle site Run an update every 4 hours
B. MirrorView between New York City and New Jersey Use a Clone of the secondary image as 
    the Source LUN for a full SAN Copy transfer to the Seattle site Resynchronize the Clone once 
    the SAN Copy transfer ends Fracture the Clone once it is resynchronized, and start a new SAN       
    Copy transfer Repeat
C. MirrorView/A between New York City and New Jersey Use a Clone of the secondary image as 
    the Source LUN for a full SAN Copy transfer to the Seattle site Resynchronize the Clone once 
    the SAN Copy transfer ends Fracture the Clone once it is resynchronized, and start a new SAN 
    Copy transfer Repeat
D. MirrorView/A between New York City and New Jersey with a 15 minute update interval 
    Use Incremental SAN Copy with the MirrorView/A secondary image as the Source LUN to 
    Transfer data to the Seattle site Run an update every 60 minutes

Answer: D

Question 10.
TGD Inc. uses a CX700 for its Oracle based ERP system. The data is distributed over several LUNs. For DR purposes they use MirrorView /S to mirror the data to a second CX700. 

Which failure will cause inconsistent data on the secondary site?

A. Secondary SP B fails
B. Primary SP A fails
C. Broken FC connection on secondary SP B port 2
D. Broken FC connection on primary SP B port 2

Answer: A

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