EMC E20-555 Online Practice Questions and Exam Preparation

EMC E20-555 Online Questions & Answers

• Question 321:

  How many layers are in the Isilon clustering architecture?

  A. 2
  B. 4
  C. 6
  D. 8
  B. 4

• Question 322:

  A healthcare services provider is implementing an X-Series cluster. Currently they have approximately 200 customers and they are growing at 30% per year. They have 200 TB of storage utilized. Health Insurance Portability and Accountability Act (HIPAA) regulations require they keep all patient data for seven (7) years. They would like to keep all genomic sequencing data stored with N+3 protection, not to exceed 75% utilization.

  What is the minimum initial configuration you would recommend?

  A. 13 X400 nodes; 1 TB drives
  B. 6 X400 nodes; 4 TB drives
  C. 13 X200 nodes; 3 TB drives
  D. 7 X400 nodes; 1 TB drives
  A. 13 X400 nodes; 1 TB drives

• Question 323:

  A customer plans to deploy N+2d:1n protection on a 5-node Isilon cluster. How much capacity will be used to store a 320 KiB file?

  A. 512 KiB
  B. 448 KiB
  C. 576 KiB
  D. 640 KiB
  C. 576 KiB

• Question 324:

  Which balancing option is provided by SmartConnect Basic?

  A. Round-Robin
  B. Throughput
  C. CPU usage
  D. Connection count
  A. Round-Robin

• Question 325:

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

• Question 326:

  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
  A. MediaScan

• Question 327:

  What is a benefit of using SSDs for Metadata Read/Write Acceleration?

  A. Can be mixed with L3 cache on same node pool
  B. Improved create, write, and delete performance
  C. Guarantees data can be pinned to SSD
  D. Does not need numerous SSDs to be effective
  B. Improved create, write, and delete performance

• Question 328:

  What is a consideration when designing access zones?

  A. Authentication providers are restricted to one specific zone
  B. UID/GID ranges should not overlap for providers in the same zone
  C. Access zones cannot overlap the same directories
  D. Share names must be unique between different access zones
  B. UID/GID ranges should not overlap for providers in the same zone

• Question 329:

  What is the behavior of the Isilon time and date settings and what is the best practice?

  A. SMB time sync takes precedence over the NTP service SMB time is enabled by default on the cluster Best Practice: do not use SMB time, use NTP for cluster and Domain Controller
  B. NTP service takes precedence over SMB time sync SMB time is enabled by default on the cluster Best Practice: do not use NTP time, use SMB for cluster and Domain Controller
  C. NTP service takes precedence over SMB time sync SMB time is enabled by default on the cluster Best Practice: do not use SMB time, use NTP for cluster and Domain Controller
  D. SMB time sync takes precedence over the NTP service SMB time is not enabled by default on the cluster Best Practice: do not use NTP time, use SMB for cluster and Domain Controller
  C. NTP service takes precedence over SMB time sync SMB time is enabled by default on the cluster Best Practice: do not use SMB time, use NTP for cluster and Domain Controller

• Question 330:

  An Isilon customer wants the ability to provide low latency I/O for their files due to a workflowinvolving small, random reads and writes. Which SSD strategy is most effective for this use case?

  A. Data on SSDs
  B. Metadata read acceleration
  C. Metadata read/write acceleration
  D. Avoid SSDs
  A. Data on SSDs