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Category: E20-891 (v.1)

Exam E20-891: Backup Recovery Solutions Expert Exam for Technology Architects (update February 18th, 2017)

Which vSphere feature will provide this capability?

A company just converted its physical server environment to a virtual environment using
vSphere 5. They have asked you to assist with creating a backup strategy for their virtual
machines. One of the primary concerns for the company is that they are able to backup an
entire virtual machine without installing any agents on it. Which vSphere feature will provide
this capability?

What must be done to perform a successful backup?

A customer had configured their EMC NetWorker environment to use Data Domain Boost,
CIFS, and NFS protocols to back up their local environment. After analyzing the
performance of each protocol, the decision was made to only use the DD Boost protocol.
The customer reconfigured the NetWorker clients to backup to the already configured Data
Domain devices and disabled CIFS and NFS on the Data Domain. After scheduled backups
were performed, all backups started to fail. What must be done to perform a successful
backup?

what can be done to address the poor restore performance?

A customer has an EMC Celerra with one NFS share that contains five million files. The
backup administrator is backing up the entire NAS using EMC NetWorker to a Linux storage
node utilizing NDMP. The administrator is noticing that the restore performance is poor
despite the good backup speed. Based on the given situation, what can be done to address
the poor restore performance?

What would prevent the savesets from being removed from…

A customer has an EMC NetWorker and Avamar integrated datazone. The datazone
consists of an Avamar server, an Avamar replication server, and a single NetWorker server.
Backups, restores, and replication have been successful. The customer noticed that expired
savesets are not being deleted from the Avamar replication server. What would prevent the
savesets from being removed from the Avamar system?

Based on EMC best practice, at a minimum, how much memo…

Click on the calculator icon in the upper left corner. An EMC NetWorker customer is sizing a
NetWorker storage node to backup to their newly purchased Data Domain system. The
customer is projecting that a minimum of eight datastreams and a maximum of 40
datastreams will be sent to the Data Domain system. Based on EMC best practice, at a
minimum, how much memory should be available for the storage node

Which option needs to be included in their RMAN script …

An Oracle customer has configured backups of five Oracle servers to their EMC NetWorker
server. Over the past month they have been successfully performing hot backups using the
NMDA module. Now, one of the databases has become corrupted and they would like to
perform a point-in-time recovery of the database. Which option needs to be included in their
RMAN script to perform this action?

how often is the System Change Number updated in Oracle?

A customer is configuring Oracle servers in their environment for the first time. They would
like to use their existing EMC Avamar server to protect these new systems. They have
asked you to explain the various point-in-time recovery modes. When using the System
Change Number recovery mode, how often is the System Change Number updated in
Oracle?


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