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EMC Specialist - Technology Architect, PowerScale Solutions Sample Questions:

1. A customer needs to consolidate 300 TB of home directory servers and shared file systems used by development and test groups. A key requirement is to prevent the systems from consuming all free capacity and impacting home directory content.
Which Isilon node configuration should be proposed?
Response:

A) X-Series with SmartQuotas
B) X-Series with SmartPools
C) NL-Series with SmartQuotas
D) S-Series with InsightIQ

2. What is a benefit of using SSDs for Metadata Read/Write Acceleration?
Response:

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

3. 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.
The customer provides the following environment summary from the engineering firm's recently departed IT staff:
- 20 TB of Home Directory data
- 100 TB of active CAD projects
- 400 TB of archived data stored on tape at an offsite warehouse
What steps would you recommend to the IT Director to allow for collaboration between the engineering company and the manufacturing company?
Response:

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

4. A telecommunications company has a substantial amount of dat
a. This data is being created by network elements within their environment. The company wants to change the way the network elements Call Detail Records (CDR) are stored and analyzed. The existing infrastructure consolidates all of the CDRs into a table structure, and then ingests them into a large database.
Once ingested, a query engine accesses the database and performs analysis on these files. The system is functional; however, since the amount of CDRs generated will increase exponentially over the next year, the company is open to alternatives for storing and analyzing these records.
In evaluating alternatives, the key requirements are to reduce cost, the amount of storage, and the amount of time to analyze the data. The customer would like to use Hadoop to analyze the CDRs. After you have conducted an assessment of the workflow, you have recommended an Isilon Cluster to work within the Hadoop environment.
Considering the customer's requirements, which is the best node type for the Isilon cluster?
Response:

A) NL400 with 48 GB RAM and no SSDs per node.
B) X200 with 24 GB of RAM and 1.2 TB of SSD per node.
C) X400 with 96 GB of RAM and no SSDs per node.
D) X400 with 24 GB RAM and 1.6 TB of SSD per node.

5. A company currently has multiple fileservers to provide home directories for its employees. Each department has a separate fileserver.
Most corporate users are on Windows clients and utilize Active Directory, except for the Engineering department, which uses Linux and NIS for authentication. The company is looking for a solution with minimal administrative overhead and a single namespace for the home directories.
What is the recommended solution that will meet this company's requirements?
Response:

A) Utilize SmartPools to create two different FilePools, and separate Windows users from Linux users.
B) Configure a single Isilon cluster and utilize Access Zones for authentication to Active Directory and NIS.
C) Configure a single cluster, and migrate Linux users to Windows.
D) Configure two separate clusters, one for Windows clients and the other for Linux.

Solutions: