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EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
1. A cost-conscious customer is exploring Isilon for their PACS archive. The workflow consists of one hundred cases a day, each including fifty 60MB image files. However, each image will have five-hundred 64kB metadata files associated with it. They currently have six years worth of archived data. They will need to migrate to the new solution and they need to plan for an additional three years of archive capacity.
Which solution would you recommend to fit their capacity needs?
A) 24 NL-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
B) 12 NL-Series nodes with N+2 protection policy providing 1300 TiB of useable capacity
C) 24 X-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
D) 18 NL-Series nodes with N+2:1 protection policy providing 2078 TiB of useable capacity
2. Refer to the exhibit.
A customer calls you and asks if you could come by and interpret their InsightIQ data. You see that namespace reads are 63% of the work load.
What would you recommend to help this cluster's namespace performance?
A) Add S-Series nodes
B) Turn off write cache
C) Add A-Series nodes
D) Add SSDs
3. You meet with the IT Director of a large single site campus. The IT department has recently taken over Physical Security from the facilities department and plans a complete overhaul of the surveillance solution. They are looking to you as a storage architecture expert to provide the correct amount of storage needed. The IT Director asks you what items they need to provide in order to size this solution.What data do you require from the customer?
A) Bit rate per camera Camera manufacturer Video management system Retention time
B) Pixel count Video CODEC Color sampling Frames per second (fps) Number of devices Retention time
C) Pixel count Video CODEC Color sampling Frames per second (fps) Number of devices Video management system Evidence collection period
D) Video resolution Video CODEC Frames per second (fps) Number of devices Retention time
4. A customer has eight X400 24GB RAM nodes that support 400 client connections. They will be adding 400 more clients in the next few months. They are looking at adding an A-Series node to the cluster to help with client connections.Before they start adding client connections, what hardware change do you recommend?
A) Add an A100 node to offset concurrent client connections
B) Add nodes with SSD to help with connections
C) Add more network switches to increase the number of connections
D) Add RAM to the nodes to offset concurrent client connections
5. -- 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.
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
-- Exhibit -
Which configuration changes would you recommend for the Engineering users?
A) Utilize SMB2.1 protocol and mount to the Isilon cluster using the Name Server (NS) record IP.
B) Mount an NFS share to a node on the Isilon cluster, being careful to equally distribute the load across nodes.
C) Create an FQDN for the Isilon cluster in the LMHOSTS file for each engineering system.
D) Direct all clients to use the Manufacturing DNS server and connect NFS mounts to the FQDN of the Isilon cluster.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: D |
