EMC EMC Certifications E20-555 Questions & Answers

• Question 181:

  An Isilon customer has two 5-node clusters; one for production and one for disaster recovery (DR). The customer's workflows are replicated to the DR cluster through SyncIQ on individual schedules. They shutdown their production cluster for a scheduled DR test, failed over to the DR cluster, and continue their DR testing.

  Assume both clusters have identical shares, exports, and user authentication and that the client applications have been stopped and the DNS re-pointed. What is the correct method to continue production operations?

  A. Revert the SyncIQ Policy

  B. Initiate Manual Failback of the SyncIQ Policy

  C. Initiate Automated Failback of the SyncIQ Policy

  D. No change to the SyncIQ Policy

  Correct Answer: A

• Question 182:

  At a minimum, how many connected and available nodes are required to maintain quorum in a 25-node cluster?

  A. 10

  B. 12

  C. 13

  D. 17

  Correct Answer: C

• Question 183:

  A customer has an SMB file directory with 375 TB of data on the primary cluster with a protection level of N+ 3:1. They want to replicate this directory to the secondary cluster. The customer would like information about the possibility of setting protection levels on the target cluster.

  What information can be provided to the customer about the protection level for the target directory?

  A. Configured separately on the target cluster and does not need to match the source

  B. Configured separately on the target cluster and must match the source

  C. Controlled by SyncIQ and cannot be altered

  D. Controlled by SyncIQ and can be altered by the CLI

  Correct Answer: A

• Question 184:

  Which Isilon job periodically checks disk sectors to ensure they can be read?

  A. MediaScan

  B. IntegrityScan

  C. Dynamic Sector Repair

  D. Isilon Data Integrity

  Correct Answer: A

• Question 185:

  What is the minimum number of nodes in an Isilon cluster for N+2 protection?

  A. 3

  B. 5

  C. 6

  D. 9

  Correct Answer: B

• Question 186:

  If a file is 4 KB in size, how much space is consumed for file data when it is written to the Isilon cluster?

  A. 4 KB

  B. 8 KB

  C. 16 KB

  D. 32 KB

  Correct Answer: B

• Question 187:

  Which Isilon OneFS job is responsible for examining the entire file system for inconsistencies and runs manually?

  A. IntegrityScan

  B. MediaScan

  C. AutoBalance

  D. FlexProtect

  Correct Answer: A

• Question 188:

  A customer plans to consolidate 200 TB of digital images and video content. Performance is important for recently created files. However, the customer wants any content that has not been accessed within 30 days to be stored in the cluster at a much lower cost because performance is no longer critical.Which Isilon configuration should be recommended?

  A. X-Series nodes, NL-Series nodes, and SmartPools

  B. X-Series nodes and SmartQuotas

  C. S-Series nodes, X-Series nodes, and SmartPools

  D. NL-Series nodes and SmartLock

  Correct Answer: A

• Question 189:

  -- 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, which node combination is the appropriate choice for the customer's requirements?

  A. 4 x X400 nodes with 4 x NL 400 nodes

  B. 4 x S200 nodes with 4 x NL 400 nodes

  C. 4 x X200 nodes with 4 x NL 400 nodes

  D. 4 x S200 nodes with 5 x NL 400 nodes

  Correct Answer: A

• Question 190:

  -- 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

  Correct Answer: A