EMC EMC Certifications E20-329 Questions & Answers

• Question 51:

  A customer has data at several remote offices that needs to be backed up over a secure WAN connection to their data center. However, bandwidth is constrained. A major portion of their backup data will be file system data. In addition, they have a 6 TB database in the primary data center with a 6% change rate that needs to be backed up.

  Which EMC backup solution is recommended for this customer?

  A. NetWorker with Avamar integration

  B. NetWorker with Data Domain and CIFS

  C. NetWorker with Data Domain and DD Boost

  D. Avamar server with Avamar Virtual Edition

  Correct Answer: A

• Question 52:

  Scenario

  A customer is looking to modernize their backup infrastructure. The current environment consists of a single centralized data center and several remote sites. The centralized data center hosts all core services and applications. The remote office primarily consists of sales personnel with 4000 users in North America, 500 in Europe, and 300 in Asia using file servers.

  The current backup environment at the primary site uses CommVault backing up to a Fibre Channel tape library that contains four LTO-4 tape drives. Currently they are backing up a number of file servers as well as several databases that have average change rates of 7% daily. Remote office backups are currently performed by having users copy files to regional file servers that are then backed up to tape.

  In the past few months, the customer has experienced problems with getting backups to finish within their defined windows as well as issues with the tape library hardware. They now have concerns about gaps in their backup coverage as well as the reliability of the tape media. In addition, an internal audit shows a large amount of user-generated data is unprotected on remote user laptops.

  The customer is looking for a common platform to standardize their backups. They want a solution which allows for a centralized infrastructure so that they do not need to rely on remote resources to address hardware and software issues. The other goal is to move away from tape to a more reliable disk-based solution.

  Refer to Scenario .

  The customer has concerns about Avamar's ability to handle the backups of their databases.

  Which recommendation should be made?

  A. Integrate a Data Domain appliance with Avamar

  B. Add additional storage nodes to the Avamar system

  C. Implement image backups using change block tracking

  D. Increase file cache sizes on database clients

  Correct Answer: A

• Question 53:

  A customer currently has a multi-node EMC Avamar server with eight active storage nodes. They are currently at 85% GSAN capacity and receiving capacity warning messages. The customer would like to purchase four additional nodes for the system.

  What is a best practice for adding capacity?

  A. Add two nodes at a time.

  B. Add one node at a time.

  C. No more nodes can be added. Add a new Avamar system.

  D. No more nodes can be added. Migrate to a larger Avamar system.

  Correct Answer: A

• Question 54:

  A data center company is using two EMC NetWorker servers (NetWorker_A and NetWorker_B).

  Each server has three storage nodes to protect 650 server applications and data.

  The total amount of data being backed up is 100 TB. NetWorker_A server protects 60 TB and NetWorker_B server protects 40 TB.

  To minimize cost and simplify licensing management for NetWorker, the company decided to switch from a traditional licensing model to a capacity licensing model.

  How many licenses are needed to support the company's requirements?

  A. 2 Source Capacity Datazone Enablers and 10 Tiered Capacity Entitlement license 10 TB Enablers

  B. 2 Source Capacity Datazone Enablers and 650 Standard Client Connection licenses

  C. 2 Base licenses and 10 Tiered Capacity Entitlement license 10 TB Enablers

  D. 2 Source Capacity Datazone Enablers; one for 60 TB and one for 40 TB

  Correct Answer: A

• Question 55:

  An EMC Avamar customer has added a new file system client to their moderately full Avamar single-node

  server.

  The single-node server is running in steady state and the initial backup is complete.

  What is the estimated time to backup this file server of 3 million files each night?

  A. Less than 1 hour

  B. 1 - 2 hours

  C. 3 - 4 hours

  D. 5 - 6 hours

  Correct Answer: C

• Question 56:

  An EMC NetWorker customer uses AFTDs connected to a Data Domain CIFS share. They want to configure clone controlled replication within NetWorker from one Data Domain to another.

  Which Data Domain license is necessary to meet the customer's criteria?

  A. Replication

  B. CIFS

  C. DD Boost

  D. DD Extended Retention

  Correct Answer: A

• Question 57:

  A customer has an EMC Avamar server with four 3.9 TB data nodes and is backing up two large clients in the same backup group.

  The first client has: 8 GB of RAM File system #1 with 3 million files consuming 0.75 TB of space File system #2 with 5 million files consuming 1.00 TB of space

  The second client has: 10 GB of RAM 1 file system containing 4 million files consuming 1.20 TB of space

  How long will the steady state backup group be expected to run?

  A. 5 hours

  B. 6 hours

  C. 8 hours

  D. 12 hours

  Correct Answer: C

• Question 58:

  Scenario: The Chief Technical Officer (CTO) of a large company has directed their IT management staff to examine corporate-wide operations and find ways to limit the cost of operations. The corporate directives have prompted the adoption of company policies that include the use of virtualization for all new servers and as many services as possible. The company is subject to government regulations concerning data retention policies for confidential data. Data must be retained for seven years.

  An audit of the backup and recovery environment is performed. The exhibit shows a typical site and how it is connected to the disaster recovery environment. Data in the primary site is configured on VMAX storage using FAST-VP to support multiple work load types on a single storage array.

  Data is protected by SRDF/A to a remote VMAX which acts as a target for multiple sites. The remote copy of the data is snapped and copied to tape. Retention is accomplished to governmental standards by offsite storage of tape in a remote protected facility.

  The company has indicated that it has the following requirements in any proposed architecture for the backup and recovery environment:

  Reduced power consumption Reduced floor space consumption Reduced storage capacity consumption Lower WAN bandwidth utilization Shorten RPO Decrease RTO Increase security Lower total cost of ownership (TCO)

  

  Refer to Scenario and the exhibit.

  To satisfy the stated requirements, the customer wants to use a virtual appliance to limit power and space consumption in their smaller locations. To replace the current SRDF/A replication model, which EMC technology should be recommended?

  A. Avamar Virtual Edition

  B. Data Domain

  C. NetWorker NDMP

  D. File Management Appliance VE

  Correct Answer: A

• Question 59:

  Scenario

  A customer with a fully virtualized environment has four ESX 4.1 servers in a cluster with a SAN solution for storage. Each ESX server is hosting 40 virtual machines and all virtual machines have the same local disk configurations:

  Disk1 = 50 GB Disk2 = 100 GB Disk3 = 256 GB

  In addition, the environment includes a NAS filer. The average time to fully backup all virtual machines on one ESX server using EMC DD Boost is three hours.

  The customer is interested in implementing an EMC NetWorker solution with Data Domain as a backup device. The backup server, storage nodes, and proxies are SAN-attached.

  Refer to Scenario .

  When using VADP backups with EMC NetWorker, which transport mode is recommended for virtual machines with IDE virtual disks?

  A. NBD

  B. Hotadd

  C. SAN

  D. RDM

  Correct Answer: A

• Question 60:

  Scenario

  A customer with a fully virtualized environment has four ESX 4.1 servers in a cluster with a SAN solution for storage. Each ESX server is hosting 40 virtual machines and all virtual machines have the same local disk configurations:

  Disk1 = 50 GB Disk2 = 100 GB Disk3 = 256 GB In addition, the environment includes a NAS filer. The average time to fully backup all virtual machines on one ESX server using EMC DD Boost is three hours.

  The customer is interested in implementing an EMC NetWorker solution with Data Domain as a backup device. The backup server, storage nodes, and proxies are SAN-attached.

  Refer to Scenario .

  Using a VADP proxy, EMC NetWorker is backing up 12 virtual machines concurrently in SAN transport mode. What is the total recommended RAM needed on the proxy?

  A. 6 GB

  B. 8 GB

  C. 10 GB

  D. 12 GB

  Correct Answer: A