EMC E20-555 Online Practice Questions and Exam Preparation

EMC E20-555 Online Questions & Answers

• Question 21:

  Refer to the exhibit.

  

  You are analyzing a customer's existing Isilon environment using isi statistics in order to expand the cluster. When examining the protocol subcommand, you see the output as shown in the exhibit. What does the data tell you about the workload?

  A. It is metadata intensive.
  B. It is mostly sequential reads.
  C. It uses large read requests.
  D. It contains mostly random writes.
  A. It is metadata intensive.

• Question 22:

  Your customer manages a print media environment, consisting of three Isilon clusters, which are out of support. The customer would like to have access to new software releases and feature sets. You have been asked to perform a full

  discovery of the customer's environment.

  The customer's current Isilon clusters are as follows:

  “Cust” (12 x 12000X) serves as upload media storage for different tenants.

  “Working” (8 x 12000X + 6 x X200) serves as a working zone for extraction to RAW and printing media from it.

  “Archive” (16 x 72NL + Accelerator nodes) is used to store printed content for six months.

  The customer operates in a Windows environment using SMB 2.0, two DNS servers per AD forest, three forest domains which are servicing three different environments. All servers are operating on a 1Gb network, three VLANs segregating

  the DEV/QA/PROD environments. Currently, there is no monitoring in place for performance measurement or optimization.

  The requirements for this solution include:

  Better ROI and TCO

  Maintain same performance with possible improvements

  Renew HW/SW and get inclusive support

  Limit migrations

  Reduce space, power, cooling consumption

  Get new feature sets

  If migration required, use Parallel copy (multiple nodes, multiple threads, multiple connections)

  Segregate tenant shares from other tenants

  Expand up to 1PB of total storage

  What would you recommend be done to consolidate the three clusters into one?

  A. • Expand the largest and most I/O intensive cluster using SmartFail • Consolidate the remaining two clusters using Multithreaded version of RoboCopy • Modify A-Record and propagate to all DNS servers to point to the new cluster
  B. • Leave the clusters as is • Upgrade drive sizes to meet the customer requirements
  C. • Expand the largest and most I/O intensive cluster using SmartFail • Consolidate the remaining two clusters using SyncIQ
  D. • Build a new cluster for consolidation • Use SnapshotIQ to migrate the existing data onto the new consolidated cluster • Spoof DNS to point to the new cluster
  C. • Expand the largest and most I/O intensive cluster using SmartFail • Consolidate the remaining two clusters using SyncIQ

• Question 23:

  Your customer's site uses an old X-Series cluster, and they are interested in consolidating their two primary workflows. iostat shows that one of the applications is sensitive to latency, while isi statistics indicates sensitivity to disk response times. There are approximately 1000 users accessing 70 TB of file data.

  Which node type would you recommend?

  A. S200
  B. X400
  C. X200
  D. NL400
  A. S200

• Question 24:

  On an Isilon Gen 6 Cluster with 4 nodes and N+2d:1n protection, how much storage would a 64 KB file consume?

  A. 85 KB
  B. 128 KB
  C. 160 KB
  D. 192 KB
  B. 128 KB

• Question 25:

  An Isilon customer wants to more effectively manage their storage and thereby achieve performance improvements. Which tool will help improve workflow performance on their cluster?

  A. InsightIQ
  B. Isilon SNMP MIB
  C. SyncIQ
  D. SmartPools
  A. InsightIQ

• Question 26:

  Where are file system changes first stored?

  A. L1 Cache
  B. Endurant Cache
  C. L2 Cache
  D. Journal
  D. Journal

• Question 27:

  There is a requirement to use dynamic link aggregation to maximize throughput and resiliency on a new Isilon cluster servicing SMB and NFS data. What is the recommended configuration for the physical network interfaces?

  A. FEC
  B. Round robin
  C. Active/passive failover
  D. LACP
  C. Active/passive failover

• Question 28:

  When designing Isilon solutions, which issue should you pay special attention to?

  A. Meet customer expectations
  B. Create a workflow document
  C. Conduct stakeholder interviews
  D. Follow all SSD sizing rules
  A. Meet customer expectations

• Question 29:

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

  A. Object level restrictions
  B. Domain specific restrictions
  C. Activity level restrictions
  D. Activity and object level restrictions
  A. Object level restrictions

• Question 30:

  -- 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 -

  What steps would you recommend to the IT Director to allow for collaboration between the engineering company and the manufacturing company?

  A. Set up Access Zones on the Isilon cluster using Active Directory (AD) and NIS authentication. Create directories and apply user group permissions from AD and NIS for each collaboration team.
  B. Repoint the engineering users to the Active Directory controller Add the users to the appropriate Active Directory security group.
  C. Upload a collaboration user csv file into the cluster with usernames and passwords for the collaboration directory.
  D. Create a new pool for use by the collaboration users. Set up Access Zones on the Isilon cluster using AD and NIS authentication.
  A. Set up Access Zones on the Isilon cluster using Active Directory (AD) and NIS authentication. Create directories and apply user group permissions from AD and NIS for each collaboration team.