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EMC
Backup Recovery Solutions Design Exam for Technology Architects
E20-329 Exam
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Question: 1
An EMC Avamar customer’s Gen-1 system with 4 TB of GSAN capacity has reached read-only
threshold. The customer indicates that the deduplicated backup data accounts for approximately 3.5
TB.
What is the most likely cause for the read-only threshold being reached?
A. Deduplicaton rate is less than expected, accountng for the remaining GSAN capacity
B. Combinaton of system overhead, logs, and checkpoints account for the remaining GSAN capacity
C. RAIN overhead accounts for the remaining available GSAN capacity
D. Checkpoints and logs account for the remaining GSAN capacity
Question: 2
Answer: C
A customer has an operatonal EMC NetWorker environment using an Avamar deduplicaton node.
They want to protect the Avamar deduplicaton node using replicaton. The customer has
approached EMC for advice on what consideratons they should take into account.
What is a consideraton in this environment?
A. NetWorker automatcally confgures all replicaton targets associated with a given deduplicaton
node
B. Scheduled replicatons of a NetWorker deduplicaton node must be set up in Avamar
C. Recovery from the replicatons node must be performed from Avamar Administrator
D. Scheduled replicatons of a NetWorker deduplicaton node must be set up in NetWorker
Question: 3
Answer: B
The EMC account team has been asked to design a NetWorker backup soluton with the following
requirements.
1. One copy of backup data needs to be stored locally.
2. An additonal copy of backup data needs to be stored on tape at an ofsite locaton.
What should be done to satsfy the new regulatons with minimal impact to the current backup
performance?
A. Clone to tape and send the clone copy to the remote locaton
B. Back up the data concurrently to the remote and local locatons
C. Archive the backup data to the remote locaton
D. Archive the data to the remote locaton before being backed up locally
Question: 4
Answer: B

An organizaton is backing up a combinaton of databases, e-mail, and fle system data types in their
data center to a Data Domain appliance using a single backup server. The backup system
administrator creates separate subdirectories for each of the three data types under the default
share.
What beneft is provided by this approach?
A. Analyze compression with moregranularity
B. Simplify backup device confguraton
C. Enhance performance of the database backup
D. Improve fle system cleaning performance
Question: 5
Answer: A
A customer has a new Avamar server with four 2 TB data nodes. This server is backing up two
Avamar clients. The frst client has 8 GB of RAM and two fle systems. The frst fle system has 3
million fles consuming 75 TB. The second fle system contains 5 million fles consuming 1 TB of
space.
The second client has 10 GB of RAM and one fle system containing 4 million fles consuming 1.2 TB
of space. Both clients will belong to the same backup group. How long will the steady-state backup
group be expected to run?
A. 5 hours
B. 6 hours
C. 7 hours
D. 8 Hours
Question: 5
Answer: A
An EMC NetWorker customer wants to use the deduplicaton opton. The requirement for a database
server in their environment is to perform deduplicaton backups for fle system data and NetWorker
tape backups for database data. They want to allow a maximum of two parallel streams for fle
system backups and a maximum of four streams for database backups.
How can this be accomplished?
A.

B.
C.
D.

Answer: C
Question: 7
As illustrated in the exhibit, a customer has a backup environment that includes clients and server
managed by a backup media server. Data is writen to a primary storage device and archived to an
applicaton server. The customer has onsite retenton strorage, which is replicated to a disaster
recovery site. In additon, archive-to-tape is requires.
Which components would you replace when initatng a Data Domain soluton?
A. onsite retenton storage and ofsite disaster recovery storage

B. Backup media server and clients
C. Primary storage and onsite retenton storage
D. Backup media server and archive applicaton server
Answer: A
Question: 8
A customer has a Data Domain appliance that has reached 90% of maximum capacity. The customer
does not want to purchase any additonal storage.
What will increase the average available capacity of the Data Domain appliance?
A. Decrease the backup retenton period
B. Increase the snapshot expiraton period
C. Increase the number of streams
D. Decrease the cleaning frequency
Question: 9
Answer: A
A customer is pilotng a Data Domain appliance and notces that performance in the writng of
backups is not optmal. Based on the System Show Performance metrics represented in the exhibit,
which operaton will provide the most improved the most improved performance?
A. Reduce the read streams
B. Suspend verifcaton
C. Disable cleaning
D. Disable replicaton
Question: 10
Answer: A
A customer is using Data Protecton Advisor (DPA) to monitor their backup environment.
What is a beneft of using remote Collectors?

A. Reduces the amount of informaton being transferred to the DPA server
B. Collects system-related statstcs for a given host
C. Improves the collecton performance of backup statstcs
D. Provides more complete backup reports
Answer: B
Question: 11
A customer is implementng s Data Domain system with two expansion shelves. They require that
access to the data can be reached even when a single path fails. The customer does not want the
HBA card to be the single point of failure.
A)
B)
C)

D)
A. Opton A
B. Opton B
C. Opton C
D. Opton D
Answer: A
Question: 12
The EMC account team has been asked to redesign a NetWorker backup soluton. The existng
backup environment consists of one NetWorker server and one storage node to back up
approximately 80 clients. Over tme, the amount of data increased, resultng in daily backups taking
more than 24 hours to complete.
Analysis has determined that the tape infrastructure and the network are not the botleneck. What
would you recommend to improve the backup performance with minimal costs?
A. Add a storage node and balance the clients across the storage nodes
B. Add an EMC NetWorker server and balance the clients across the EMC NetWorker servers
C. Confgure the existng storage node as a dedicated storage node
D. Change the backup schedules so that they start as diferent tmes during the day
Answer: A

Question: 13
Which critcal network elements are assessed by the Network Assessment Tool?
A. Tracert, Ping, and Packet Loss
B. Latency, Latency Jiterand Packet Loss
C. Latency, Load, and Latency Jiter
D. Latency, Latency Jiter, and Tracert
Question: 14
Answer: B
An EMC NetWorker customer performs all backups to physical. The customer backs up fle systems,
applicaton servers, VMware guests multple 10 TB database, and a large 20 TB NetApp fler. They
have a primary and disaster recovery data center with an OC-12 circuit between the two sites.
The customer’s physical tape libraries are approaching end of support life and they are looking to
replace them with deduplicaton technology. In additon, they want to improve NDMP backup tmes
for their 20 TB NetApp fler.
Which recommendaton will address the customer’s requirements?
A. NetWorker deduplicaton for NDMP backups, databases, and applicaton servers Data Domain for
fle systems and VMware
B. NetWorker deduplicaton for fle systems, VMware, and NDMPData Domain for databases and
applicaton servers
C. NetWorker deduplicaton for fle systems, applicaton servers, and VMware Avamar for NDMPData
Domain for databases
D. NetWorker deduplicaton for NDMP
Avamar for VmwareData Domain for databases, applicaton servers, and fle systems
Question: 15
Answer: D
A customer has approached you to advise them on how their backup environment will integrate into
their new iSCSI applicaton server deployment. Which network characteristc would have the
greatest impact on their backup environment?
A. Dynamic DNS
B. LDAP authentcaton domain
C. Trafc segmentaton
D. IP version level
Answer: C

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