EMC E20-555 Online Practice Questions and Exam Preparation

EMC E20-555 Online Questions & Answers

• Question 221:

  Refer to Exhibit below:

  

  What is represented by the information shown in the exhibit?

  A. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp.
  B. Directory quota cannot exceed 2 TB for /ifs/data/media and no quota limit on /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp.
  C. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 2 TB for /ifs/data/media/temp.
  D. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 900 GB and each user can only store 75 GB for /ifs/data/media/temp.
  A. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo. Directory quota cannot exceed 900 GB for /ifs/data/media/video. Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp.

• Question 222:

  The data access pattern on a Gen 6 Isilon cluster in Concurrency. What describes this workload?

  A. Multiple stream workflows, no prefetching
  B. Multiple clients accessing the same data; aggressive prefetching
  C. Multiple clients accessing the same data; moderate prefetching
  D. Single stream workflows, aggressive prefetching
  D. Single stream workflows, aggressive prefetching

• Question 223:

  Refer to the exhibit.

  

  Which tool was used to create this output and which line item counts the metadata read operations occurring in the file service?

  A. nfsstat and getattr
  B. iostat and fsstat
  C. tcpdump and nfsstat
  D. isi_netlogger and commit
  A. nfsstat and getattr

• Question 224:

  If an Isilon customer has an environment that requires usage data for chargeback, for analyzing usage trends and for capacity planning, which type of quota enforcing option should be used?

  A. Advisory
  B. Soft
  C. Hard
  D. Thin
  B. Soft

• Question 225:

  You have gathered information from your customer about their current NAS environment. They indicated they are having performance and time-out issues with their clients accessing the storage. Currently over 5000 clients are simultaneously accessing the NAS; however, this will double in the next year.

  Based on this information, what recommendations for a new Isilon cluster would you give to the customer based on this information?

  A. Create a six node X400 cluster today. As additional clients are added, add additional X400 nodes for them.
  B. Create a seven node X400 cluster today. You will not need to purchase additional nodes as more clients are added.
  C. Create a three node cluster today. As more clients are added, add three additional nodes each time for 1000 clients.
  D. Create a five node X400 cluster today. As more clients are added, add a Performance Accelerator node for every 1000 clients.
  A. Create a six node X400 cluster today. As additional clients are added, add additional X400 nodes for them.

• Question 226:

  An Isilon customer wants a job to periodically validates the checksum of every block in the file system. What should be recommended to the customer?

  A. IntegrityScan
  B. MediaScan
  C. Dynamic Sector Repair
  D. Isilon Data Integrity
  A. IntegrityScan

• Question 227:

  Your customer has a new business unit. They are gathering web log files to be analyzed. They are using Hadoop to do the analysis of the logs. The IT department is centrally storing the log files on a 5-node Isilon cluster. They have enabled the Hadoop cluster to access the files directly on the Isilon storage. The nodes are X400's with two SSD drives in each node and 96GB of RAM.

  How many DataNodes does the Isilon cluster have?

  A. Five
  B. One
  C. Three
  D. Two
  A. Five

• Question 228:

  A customer has a 7-node Isilon cluster configured with N+2:1 protection. How many nodes can be offline with the data accessible and fully writeable?

  A. 1
  B. 2
  C. 3
  D. 0; all nodes must be online
  A. 1

• Question 229:

  A company needs the ability to separate administrative rights from data access rights. Which Isilon feature enables this functionality?

  A. RBAC
  B. SmartConnect
  C. SmartLock
  D. SmartQuota
  A. RBAC

• Question 230:

  -- Exhibit -A large manufacturing company is an existing Isilon customer with a cluster consisting of four NL400 nodes with 4TB drives. The cluster is using N+2:1 protection level and the file system shows that it is 60% utilized. Home directories and file shares comprise 75% of the existing content and the remainder is inactive deep archive. The company has 1,000 employees using Windows and Mac clients participating in a single Active Directory (AD) forest.

  During a meeting with the CIO and Director of IT you discuss the company's recent acquisition ?an engineering firm that specializes in Computer Aided Design (CAD). The engineering firm has 400 UNIX workstations that produce technical drawings which are currently stored on another vendor's SAN solution. The all UNIX environment uses NIS for authentication and name resolution. They do not currently use DNS or LDAP. The engineering company has an old storage system that has been experiencing problems and the CIO would like you to migrate the data onto the Isilon cluster. The CIO would like to eliminate all tape and recover the data onto disk.

  The CIO is concerned about security of the company's intellectual property, especially with the rapid adoption of mobile devices and external cloud content sharing services such as DropBox, Egnyte, and SugarSync. They would like to implement an alternative that provides external file sharing and mobile device synchronization while maintaining security control over the company's data.

  The Director of IT reports that users are storing non-work related content on the Isilon cluster. They would like to limit the amount of capacity that each user can consume in their home directory and want to ensure you provide the capability to easily visualize which users are over their allotment.The company's Windows users currently leverage Windows Shadow Copy to recover files that have been accidentally deleted. The IT department wants to ensure that Mac and incoming UNIX clients have the same functionality.

  The Director of IT also mentions that users are reporting slow response times when browsing their home directories and shared folders. They are concerned that Isilon cannot scale to support their combined requirements.

  -- Exhibit -

  Based on the meeting with the customer, which Isilon cluster configuration would you recommend?

  A. 4 x X400 nodes with 2 x SSD and 34 x 4TB drives 1 x Additional NL400
  B. 6 x X400 nodes with 36 x 4TB drives 1 x Backup Accelerator
  C. 4 x NL400 nodes with 36 x 4TB drives
  D. 9 x S200 nodes with 2 x SSD and 22 x 900GB SAS
  A. 4 x X400 nodes with 2 x SSD and 34 x 4TB drives 1 x Additional NL400