Real EMC Data Domain E20-385 Dumps Questions

1. When logging into an EMC Data Domain system during an initial installation, which connection type must be used?

2. Which EMC Data Domain type of replication is initiated by backup software?

3. The following facts have been gathered about an EMC Data Domain implementation:

- Retention policy is 28 days

- Backups start at 6 P.M. and finish by 4 A.M.

- Backup schedule is full on Monday; incremental every other day

- First full backup size = 150 TB

- Reduction rate on first full backup = 5x

- Subsequent reduction rate on full backups = 15x

- Daily change rate = 10%

- Incremental reduction rate = 25x

When installed, the EMC Data Domain cleaning schedule will be left at the default settings. Assuming that the first backup is taken on a Monday, what is the minimum disk requirement for the Data Domain system?

4. An EMC Data Domain administrator tries to configure Active Directory (AD) as the authentication method for CIFS share. The administrator is unable to connect to the CIFS share with the user ‘Backup Operator’.

What could be the issue?

5. A customer is writing critical data to the pre-configured, default NFS export on an EMC Data Domain system for replication to a remote site.

Which directory on the local Data Domain system should be reviewed to verify the data is successfully being written?

6. An EMC Data Domain customer is looking for a way to charge each company department for storage utilization on their Data Domain systems.

How can this be implemented in Data Domain?

7. When using VTL on an EMC Data Domain system, why should persistent binding be enabled on the host?

8. You are installing an EMC Data Domain system with two expansion shelves in a customerprovided rack.

When cabling the controller to the shelves, where does the host port on the last shelf in the chain get connected?

9. What is used by SISL to verify segment uniqueness?

10. What are the states of the SAS LED connection status indicators at the back of an EMC Data Domain ES20?

11. What is the default password on a new EMC Data Domain system?

12. What is a characteristic of data movement to the Retention tier?

13. Which supported backup architecture allows NFS-based backups with EMC Data Domain as a backup target device?

14. An administrator wants to decrease the time needed to back up data to a locally connected EMC Data Domain system. In addition, the administrator wants to reduce the amount of network traffic generated by the backup software.

Which DD Boost capability will achieve this requirement?

15. You are tasked with integrating two new EMC Data Domain systems into an existing EMC NetWorker environment. Due to customer requirements, a VTL will be created on each Data Domain and drives will be presented to each NetWorker storage node.

Which best practice should be provided to the customer for this configuration?

16. In an EMC Data Domain environment, which path location is the default directory for deduplicated data?

17. A customer has an EMC Data Domain integrated into their Symantec NetBackup domain as an OST device at their production site. They are installing a new NetBackup media server and a second Data Domain at their disaster recovery (DR) site to protect their client backup images.

How should replication be configured to allow NetBackup to recover client backup data from the DR site in the event the Data Domain at the production site goes offline?

18. A customer notices an improved deduplication rate and write time into their EMC Data Domain system while multiplexing is turned off.

What is the reason?

19. A customer is deploying EMC Data Domain systems in four data centers worldwide. The Data Domain systems will be using VTL. Each system will have a unique tape pool. The customer wants to replicate data to all sites. The data needs to be encrypted locally and then replicated to remote sites over the WAN.

What needs to be deployed to meet the customer's requirements?

20. Which user role is limited to monitoring and performing fastcopy operations on an EMC Data Domain system?

21. Refer to the exhibit.

You are installing an EMC Data Domain system with expansion shelves.

When is the cable connector shown in the exhibit used?

22. You are tasked with installing a new EMC Data Domain system in an existing NetWorker environment. The customer requirements state that they need the ability to perform multiple concurrent clone operations from the same device.

Which device type(s) supports the customer's requirements?

23. An EMC Data Domain system has been installed at a customer's site for several months and has reached steady state.

At which threshold percent does capacity reach the point where action should be taken to make more free space available?

24. A customer is using EMC NetWorker with EMC DD Boost, writing to a Data Domain DD990. Due to regulatory requirements, the customer must keep their data for seven years.

What should be done to achieve this requirement while minimizing management overhead?

25. Which replication type is unsupported with EMC Data Domain Extended Retention?

26. Refer to the Exhibit.

On the EMC Data Domain system, what is the approximate amount of data sent to the system on March 2nd?

27. An EMC Data Domain customer wants to set up link aggregation using two network interface connections. The connections will go from the Data Domain system to Switch A and Switch B.

The following IP/networking configuration will be used to create the aggregation:

Switch A is connected to DD interface eth3a

10 GB link

IP = 10.200.1.10

Switch B is connected to DD interface eth4b

1 GB link

IP = 10.200.1.11

Which mode would you recommend for this configuration?

28. On an EMC Data Domain system, what is the role of file system cleaning?

29. Which CLI command is used to perform the initial configuration of an EMC Data Domain system?

30. What is a characteristic of the EMC Data Domain CIFS service?

31. Which feature can be used on the retention tier of an EMC Data Domain Extended Retention system?

32. What is a characteristic of EMC Data Domain collection replication?

33. A company is replicating two specific directories between two EMC Data Domain systems using a 4 Mb/s WAN connection.

What can be done on the Data Domain systems to maximize replication performance?

34. When implementing NFS with an EMC Data Domain system, why should hard mounts be used?

35. An organization has implemented a multi-vendor backup environment with EMC Data Domain. The organization wants to reduce the backup times for their large file servers.

Which backup software provides the ability to distribute the deduplication process to clients?

36. An EMC Data Domain customer has purchased a DS60 shelf for their DD9500 unit.

What types of drives are supported with this shelf?

37. A customer environment has an EMC Data Domain system with Data Domain Extended Retention enabled. The environment has three sealed extended retention units. The customer notices a slight delay when accessing the oldest data sets.

What is a potential reason for this issue?

38. At what percent of physical space is a system log warning message first issued, indicating usage is approaching maximum capacity on the EMC Data Domain system?

39. An EMC NetWorker customer is implementing a new EMC Data Domain system in their environment. Backup data will be transferred over a private IP network. The customer plans to use three different NetWorker pools with different retention periods.

Which configuration is required?

40. An EMC Data Domain customer has an environment with 10 branch offices whose backup data is replicated to their primary location. For disaster recovery purposes, the primary location is replicated to an offsite location.

Which replication topology does this represent?