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The questions of E20-845 exam:

1. A customer wants to split a BCV copy of the production database once a week and then use Clones of the BCV for testing.
Which operations are required to make a Clone usable by a host?
A.Activate the Clone and split the Clone
B.Establish the Clone and split the Clone
C.Split the BCV, create the Clone, and activate the Clone
D.Establish the BCV, create the Clone, and mount the Clone
Answer: C
2. A customer is using a RAID-1 standard device that already has a paired BCV and one CopyOnAccess Clone copy.
What is the maximum number of additional CopyOnWrite Snap sessions that the customer can create on this device?
A.1
B.7
C.13
D.16
Answer: C
3. After doing a BCV split and mount on a Window’s backup host, the customer determines the data on the BCV copy is inconsistent and missing files. The customer’s script is using the SUI utility symntctl.
Which command should be used to help prevent the inconsistent BCV?
A.umask
B.flush
C.umount
D.deport
Answer: B
4. A customer wants to implement a remote site replication via SRDF.
Which tool is used to calculate the number of tracks to be replicated?
A.EMC DRU
B.EMC TimeFinder
C.EMC Change Tracker
D.EMC Symmetrix Optimizer
Answer: C
5. You are validating a remote replica configuration where a RAID-1 protected R1 device needs to be replicated remotely to a RAID-1 protected R2 device. The source R1 device already is a part of a TimeFinder concurrent BCV configuration.
What should you consider to validate the configuration?
A.The number of I/Os between R1 and BCVs
B.Whether the R2 device is being remotely replicated to a RBCV
C.The number of mirror positions available to the RDF target device
D.The number of mirror positions available to the RDF source device
Answer: D
6. A customer needs to implement a multi-hop SRDF/AR configuration.
How does the bandwidth between Symmetrix arrays impact the potential amount of data lost in case of failure?
A.Less bandwidth means more cache required
B.Less bandwidth means longer SRDF/AR cycles
C.More bandwidth means longer SRDF/AR cycles
D.More bandwidth means potential data inconsistency in case of failure
Answer: B
7. A customer is implementing SRDF/A over GigE but is having problems getting through the corporate firewall.
What are the first steps for troubleshooting?
A.Verify cache on both DMXs exactly match, and COVDs are defined on both DMXs
B.Verify the SRDF link TCP/IP port matches on each DMX, and that port is open on the firewall(s)
C.Verify the Fibre adapters are configured as SNOW resources, and COVDs are properly defined in the bin files
D.Turn off data compression on the GigE adapters, verify TCP/IP addresses on both DMXs, and verify SNOW is defined on the SRDF GigE adapters’ bin file.
Answer: B
8. A customer has had security issues in the past. To resolve them, firewalls were set up between network segments within and external to his data center environment. You are configuring the communication between the Replication Manager server and the administration console(s).
Which port must be allowed to pass through the firewalls to facilitate administration?
A.6753
B.8080
C.65431
D.65432
Answer: D

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1. A company currently uses an archiving solution to manage its storage. In addition to archiving, what else should the company implement to prepare for disaster recovery?
A.Antivirus appliance
B.Backup software
C.Compression software
D.Encryption software
Answer: B
2. The DiskXtender license has expired and the Log file shows the following error message:
ERR 02/19 20:15:59 (0A50) [Dm_Agent.cpp, 1987] license has expired. File migration functionality is now disabled (16553).
Which statement is correct?
A.DiskXtender cannot be used for any type of operation.
B.It is still possible for a user to fetch migrated data.
C.It is still possible to use file migration if the target is EMC Centera.
D.No tape operation is possible.
Answer: B
3. An IT administrator installed DiskXtender on a file server. After 30 days, files stop migrating. What is the cause?
A.DiskXtender needs to be restarted once a month.
B.Evaluation license has expired.
C.MediaStor has not been installed.
D.Search Module has not been installed.
Answer: B
4. Company ABC is planning its storage management using DiskXtender for Windows. It decided to use Retained NAS media for the secondary storage. Which retention settings are available?
A.Retention Class, Retention Period, and Infinite Retention
B.Retention Period
C.Retention Period and Infinite Retention
D.Retention Period and Retention Class
Answer: B
5. Files that were deleted from the extended drive cannot be recovered from the DiskXtender Recycle Bin. The recycle bin is enabled, but its empty schedule is not configured. Why is the recycle bin empty?
A.The end user deleted the files and therefore they would not appear in the recycle bin.
B.The file has to be restored from a backup first.
C.The files have not been purged yet.
D.The files were deleted using a Privileged Delete.
Answer: D
6. Who is the primary target audience for the DiskXtender Search Module?
A.CIO
B.End users and security officers
C.End users
D.Security officers and IT managers
Answer: D

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