E20-555 Online Practice Questions and Answers

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

A customer has 10 nodes in a cluster using N+2 protection. What is the minimum number of nodes required to be online and in communication with one another to satisfy quorum?

A. 4

B. 5

C. 6

D. 7

A customer currently has 10 HPC nodes. They plan to purchase a 5-node Isilon X400 cluster for an HPC application running on Linux. They will persistent mount the Isilon cluster through NFSv3.

Which recommended configuration addresses the customer's requirements for high availability and throughput?

A. SmartConnect Advanced with Round Robin connection balancing and dynamic addressing

B. SmartConnect Basic with Round Robin connection balancing and dynamic addressing

C. SmartConnect Advanced with Network Throughput connection balancing and dynamic addressing

D. SmartConnect Advanced with Round Robin connection balancing and static addressing

A potential customer has 540TB Raw capacity of NetApp running in ONTAP 7-Mode. They are willing to let you gather some workload data. Their authentication sources are LDAP and Active Directory. Their users are primarily Windows Clients. They are very interested in Automated Tiering and Large Scale Archives. They are not certain about the workflows from the Marketing Department. The Content Team will only say they need to acquire 300 TB within 90 days. They do not know the average file size or the number of aggregates they are managing.

Which tool(s) would you use next to complete your sizing?

A. MiTrend WPA, Autosupport, and PerfCollect

B. Isilon Cluster Sizing Tool

C. Wireshark, isi statistics, and iostat

D. Isilon Insight IQ, OnCommand Insight, and nfsstat

Refer to the exhibit.

A customer calls you and asks if you could come by and interpret their InsightIQ data. You see that namespace reads are 63% of the work load. What would you recommend to help this cluster's namespace performance?

A. Add SSDs

B. Add A-Series nodes

C. Add S-Series nodes

D. Turn off write cache

-- Exhibit -A European Sports TV network is considering Isilon for their Media Edit Storage for their editing workloads. They are also considering Isilon for near-line media archiving.

The network receives XDCAM HD footage which is loaded onto their existing Transcoding Storage platform. New footage that needs to be edited will be transferred from their Transcoding Storage platform to the proposed Media Edit Storage

platform at the rate of ten simultaneous XDCAM HD files via FTP. Edited files will be transferred back to the Transcoding Storage platform at the rate of ten simultaneous XDCAM HD files via FTP.

The network currently has 15 Final Cut Pro edit stations, 15 Avid edit stations. Proxy software will be used to allow Isilon to act as the storage for the Final Cut Pro and Avid media. Three of those edit stations will be performing content

compositing as needed.

The network expects 70 hours of new content per week, and 50 hours of edited content per week. They intend to keep the new and edited content on the proposed Media Edit Storage as a performance tier for 30 days. They would like to

retain all new and edited footage proposed Media Edit Storage as a near-line tier for two years.

In addition to the current workloads, the network expects to implement a new Media Asset Management (MAM) solution and has requested the Isilon cluster be capable of supporting 120 MBps read and 120 MBps write to support the MAM

requirements.

-- Exhibit -

Refer to the exhibit.

Based on the described use of the cluster, what are the customer's capacity requirements?

A. 30 days retention: 15 TB; 2 years retention: 360 TB

B. 30 days retention: 5 TB; 2 years retention: 120 TB

C. 30 days retention: 1 TB; 2 years retention: 24 TB

D. 30 days retention: 30 TB; 2 years retention: 720 TB

You are designing a new Isilon cluster that requires backup to tape for all files in the Legal and Accounting shared folders. The customer has sized their IP network to support the application workload, but no additional bandwidth is available.

What should be recommended for the backup solution?

A. Use an Avamar NDMP accelerator and dedicated 10Gb/s network interfaces

B. Use Backup Accelerator nodes for 2-way NDMP

C. Use Backup Accelerator nodes for 3-way NDMP

D. Use SmartConnect Advanced and 10Gb/s network interfaces with LACP

A system administrator has identified a problem on the cluster and has opened a service request on support.emc.com. They initiate isi_gather_info but it is taking a long time to complete. What can they do to speed up the completion of isi_gather_info for the next run?

A. Collect the required logs from the syslog server

B. Restart the CELOG daemon

C. Increase the speed of the network link

D. Exclude the specified tool(s) from being gathered

A customer wants to perform complete failover and failback testing on their production SyncIQ policies. What are the first two recommended steps to ensure a successful test?

A. Quisce writes to source Perform final sync

B. Allow writes to source Perform final sync

C. Allow writes to source Immediately failover and failback

D. Quiesce writes to source Immediately failover and failback

When installing nodes into a Dell EMC rack, which node type requires the use of a Titan-HD rack?

A. H500

B. F800

C. A2000

D. A200