EMC E20-329 Online Practice Questions and Exam Preparation

EMC E20-329 Online Questions & Answers

• Question 221:

  A customer uses EMC NetWorker on HP-UX to back up 20 TB per day to physical tape. They currently restore 10 TB of database data twice a week. The customer needs a new backup solution that will reduce backup and restore times and is highly available.

  What is a recommended EMC solution?

  A. Dual-engine EMC Disk Library appliance without AEF
  B. Dual-engine Data Domain appliance with OST
  C. Dual-engine EMC Disk Library appliance with AEF
  D. Dual-engine Data Domain appliance without OST
  A. Dual-engine EMC Disk Library appliance without AEF

• Question 222:

  An EMC Data Domain customer wants to use the Extended Retention software option with their new Data Domain system. When sizing for the archive tier, what is the maximum number of future years that should be considered?

  A. 1
  B. 3
  C. 5
  D. 7
  B. 3

• Question 223:

  A customer has asked you to design a backup solution that has a NAS device with several terabytes of encrypted data spread across three different file systems. Which backup option should be avoided in this environment?

  A. Multiplexing
  B. NDMP
  C. Hot or online backup
  D. Deduplication
  D. Deduplication

• Question 224:

  An EMC NetWorker customer is considering implementing deduplication into their existing environment. Which design consideration has the most positive impact on the deduplication ratio?

  A. Longer retention period
  B. Data change rate between 25% - 30%
  C. Scientific and big data
  D. Monthly full and daily incremental backups
  A. Longer retention period

• Question 225:

  A new EMC Data Domain customer has a requirement to store the maximum amount of backup data on their Data Domain system. They are deciding on the type of local compression to use for their backups. When planning the Data Domain design, what should the customer know about the compression types?

  A. gz compression uses the least amount of space and the most CPU cycles
  B. gzfast compression uses less space and twice as much CPU cycles as gz
  C. gz compression uses 30% to 40% less storage space on average than lz
  D. lz compression uses the least amount of space and the most CPU cycles
  A. gz compression uses the least amount of space and the most CPU cycles

• Question 226:

  A customer is considering an EMC Avamar backup solution. They want to know whether Avamar can provide the security benefit of data encryption between the clients and the Avamar server. What are the "in-flight encryption" considerations?

  A. Can be changed at any time and has no performance penalty
  B. Can only be set at installation time and has no performance penalty
  C. Can be changed at any time and has a significant performance penalty
  D. Can only be set at installation and has a significant performance penalty
  A. Can be changed at any time and has no performance penalty

• Question 227:

  A data center consisting of six Microsoft Windows file servers must be backed up. Each file server contains 750,000 files and approximately 150 GB of data. The file servers have been tested simultaneously. Each file server can read data from the network and write it to disk at the rate of 75 GB per hour. The data center has a 10 Gigabit Ethernet backbone.

  What is the minimum number of Avamar 2 TB data nodes that should be ordered to perform a recovery of all six file servers and achieve a recovery time objective of 8 hours?

  A. 1
  B. 3
  C. 5
  D. 7
  B. 3

• Question 228:

  A customer recently implemented an EMC Data Domain system as the backup target for NetWorker using DD Boost. When reviewing the Data Domain Storage Unit Details report, you notice that the data drive for a particular client was not deduplicating well but the OS drive was.

  What is the most likely cause of the deduplication issue?

  A. There was a great deal of scientific data.
  B. There were many small files in the dataset.
  C. Compression was not enabled on the client.
  D. Low Bandwidth Optimization was not enabled.
  A. There was a great deal of scientific data.

• Question 229:

  You have been asked to perform an assessment of a customer's backup environment. You want to measure the current network bandwidth before determining any changes to the backup design. Which tool should you use?

  A. iperf
  B. netscan
  C. ipstat
  D. netstat
  A. iperf

• Question 230:

  You are designing a backup solution for an EMC NetWorker customer. Based on EMC best practices, how many CPU cycles are needed by the storage node when backing up clients over the network to local tape drives at a rate of 100 MB/ s?

  A. 0.2 Hz
  B. 0.5 Hz
  C. 1.2 GHz
  D. 2.4 GHz
  C. 1.2 GHz