EMC EMC Certifications E20-357 Questions & Answers

• Question 41:

  What does the 'And' condition provide in file pool policy filter use?

  A. Increases the granularity of the file match criteria

  B. Reduces the number of file pool policies

  C. Combines multiple file pool policy filters with the same actions

  D. Broadens the file pool policy match criteria

  Correct Answer: A

• Question 42:

  You have been tasked with creating file pool policies for a customer as part of the configuration document. The file criteria indicate that directories that have not changed for over 60 days should be moved to the archive tier.

  What file pool policy filter types should you select?

  A. File type and mtime

  B. Filename and atime

  C. File type and atime

  D. Filename and mtime

  Correct Answer: A

• Question 43:

  You have been tasked with creating file pool policies for a customer as part of the configuration document. Three of the file pool policies are based on matching specific file extensions.

  What file pool policy filter type should you select?

  A. Filename

  B. File type

  C. File location

  D. User defined attributes

  Correct Answer: A

• Question 44:

  A customer has created multiple file pool policies on their cluster. Many of the file pool policies include the same filtering criteria.

  What determines which file pool policy is applied to the file?

  A. The first matching policy in top-down order

  B. The first matching policy in bottom-up order

  C. File name matches are applied first, followed by File location matches

  D. File time matches are applied first, followed by File name matches

  Correct Answer: A

• Question 45:

  A new cluster consisting of S nodes and NL nodes is created. SmartPools is unlicensed. Where will the data be written?

  A. To the node pool with the highest percentage of available space

  B. To the S node pool first, then to the NL node pool

  C. To the node pool that was created first, irrespective of node type

  D. To the NL node pool first, then to the S node pool

  Correct Answer: A

• Question 46:

  What is used to reduce the time to ACK to the client for synchronous writes?

  A. Endurant Cache

  B. L1 Cache

  C. FAST Cache

  D. L2 Cache

  Correct Answer: A

• Question 47:

  Which cache stores blocks from previous read and write operations, and interacts with the node's drive subsystem?

  A. L2 Cache

  B. Endurant Cache

  C. L1 Cache

  D. FAST Cache

  Correct Answer: A

• Question 48:

  What is the maximum number of data stripe units contained in a file stripe?

  B. 16

  C. 64

  D. 128

  Correct Answer: B

• Question 49:

  What SSD strategy provides similar behavior as L3 cache?

  A. Use SSDs for metadata read acceleration

  B. Use SSDs for metadata read/write acceleration

  C. Use SSDs for data and metadata

  D. Avoid SSDs

  Correct Answer: A

• Question 50:

  An EMC Isilon cluster is being configured for a Media and Entertainment customer. The customer's workflow consists primarily of video playback, requiring a very aggressive prefetch.

  What data layout access pattern is appropriate?

  A. Streaming

  B. Concurrency

  C. Random

  D. Default

  Correct Answer: A