Free Access EMC.E20-555.v2022-01-16.q220 Practice Test (Page 7)

Question 26

A NetApp customer is considering Isilon. They use their filers for UNIX home directories, and would like to see a suggested configuration that would meet their needs.
What would you do to help size this cluster?

A.Ask for an autosupport file and upload it to MiTrends to generate a workflow profile

B.Use tcpdump and upload the output file to MiTrends to generate a protocol analysis

C.Ask for the output from nfsstat and upload it to MiTrends to generate a workflow profile

D.Ask them to install InsightIQ and collect data from the filer, then import to SQL for analysis

Question 27

A media and entertainment company has asked for help in creating a new Video On Demand (VOD) storage system. The storage would be delivered to 5000 subscribers simultaneously. They would like to store 5000 hours of full length, High Definition (HD) movies.
What would be the best price-to-performance nodes for this solution?

A.X400 with no SSD and 96GB RAM

B.X200 with no SSD and 48GB RAM

C.Mixed X400 48GB RAM and NL400 24GB

D.X400 with 1.6TB SSD and 24GB RAM

Question 28

Which level of control does RBAC provide for cluster administration roles?

A.Object level restrictions

B.Activity level restrictions

C.Activity and object level restrictions

D.Domain specific restrictions

Question 29

Which data access pattern uses moderate prefetching?

A.Streaming

B.Mirroring

C.Random

D.Concurrency

Question 30

A potential customer requires 4 PB of usable capacity to store media files. The workloads are a combination of streaming video delivery and long term archive of video assets.
There is very little space available in the customer's datacenter, so physical density is very important. The customer is concerned about performance impact and potential data loss when using 3 TB or larger drives.
What Isilon capabilities can address the customer's concerns?

A.Isilon nodes have more drives per rack unit so fewer shelves are required.
Proactive hot sparing eliminates most drive rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.

B.N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Proactive hot sparing eliminates most drive rebuilds.
Endurant Cache reduces the overhead for write operations.

C.Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
Data recovery is consistent, taking the same amount of time regardless of cluster size.
Isilon 'short strokes' 4TB drives to reduce rebuild time.

D.Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Data redistribution runs faster with more nodes in the cluster.

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