E20-555 EMC Exam Questions and Free Practice Test

Question 37

Your customer uses an existing Isilon cluster consisting of five NL-Series nodes to source broadcast media files for playback and streaming.The customer reports that the playback pauses and stutters regularly. It has been confirmed that there are no network or playback system issues.
Which of the choices listed is the appropriate choice to address the playback issues?

A. Add three or more S-Series Nodes

B. Upgrade OneFS to the latest version

C. Enable SmartConnect Advanced

D. Enable Level 2 Caching

Correct Answer:A

Question 38

A customer has a data retention period of three years. They want a solution in which files cannot be deleted, changed, or modified.
Which Isilon SmartLock version should they implement?

A. Compliance version

B. Standard version No WORM

C. Enterprise version

D. Standard version with WORM

Correct Answer:A

Question 39

For concurrent I/O, how do SmartCache and Endurant Cache differ?

A. Endurant Cache sends an acknowledgement to the client immediately after mirroring writes in NVRAM

B. Endurant Cache waits for acknowledgement from all nodes before copying to L2 cache

C. SmartCache immediately commits the write to NVRAM on the local node and one peer node

D. SmartCache uses sub-file, granular locking whereas Endurant Cache locks the entire file

Correct Answer:A

Question 40

In an Isilon cluster for N+2 protection, what is the minimum number of nodes?

A. 3

B. 5

C. 6

D. 9

Correct Answer:B

Question 41

A customer created eight SyncIQ policies on a 6-node Isilon cluster. The policies all start at midnight. The customer is experiencing issues where several jobs are paused while others continue to run. This is delaying the overall replication of data.
What is the most likely reason for the pausing of some of the SyncIQ jobs?

A. An Isilon cluster can only have five concurrent SyncIQ jobs running at the same time.

B. An Isilon cluster can only have one SyncIQ job running at any one time.

C. SyncIQ only allows one job per nod

D. This cluster can only run six SyncIQ jobs concurrently.

E. SyncIQ will stagger the start of all SyncIQ job

F. Jobs after the first job are delayed.

Correct Answer:A

Question 42

How is the journal protected in Gen 6 hardware?

A. Identical copy is maintained on all nodes of the cluster

B. Identical copy is maintained on both nodes of each node pair

C. Each node has a mirrored M.2 vault

D. Each node has a mirrored write cache

Correct Answer:D

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