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EMC E20-554 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Networking and Protocols | - NFS, SMB, and HDFS protocol support - Network architecture for Isilon clusters |
| Topic 2: Performance and Scalability | - Performance optimization techniques - Cluster scaling and workload distribution |
| Topic 3: Implementation and Troubleshooting | - Common issues and troubleshooting methods - Deployment planning and best practices |
| Topic 4: Isilon / OneFS Architecture Fundamentals | - Scale-out NAS architecture concepts - OneFS operating system fundamentals |
| Topic 5: Solution Design Considerations | - Cluster design and scalability planning - Customer requirements analysis and sizing |
| Topic 6: Data Protection and Availability | - Snapshots, replication, and backup integration - Erasure coding and data protection schemes |
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
You are working with a healthcare company that is interested in replacing all the backend storage for their PACS system.In general, how should the solution be presented to the customer?
- A. VNX for image cache; Isilon NL-Series nodes for image archive
- B. VNX for image cache and image archive
- C. Isilon NL-Series nodes for image cache and image archive
- D. Isilon A-Series nodes for image cache; Isilon NL-Series nodes for image archive
Correct Answer: A 🗳️
-- 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 -
Based on the meeting with the customer, which Isilon cluster configuration would you recommend?
- A. 4 x NL400 nodes with 36 x 4TB drives
- B. 4 x X400 nodes with 2 x SSD and 34 x 4TB drives 1 x Additional NL400
- C. 9 x S200 nodes with 2 x SSD and 22 x 900GB SAS
- D. 6 x X400 nodes with 36 x 4TB drives 1 x Backup Accelerator
Correct Answer: B 🗳️
Your customer has several departments that want separate access to the cluster so they can use their individual authentication methods. Two of the departments will use NFS and two will use SMB to access the cluster.What would you recommend?
- A. Create two separate Access Zones for the NFS clients, and use the System Zone for the SMB clients.
- B. Have all clients access the System Zone, and use RBAC to control authentication.
- C. Create separate Access Zones for both the SMB and NFS clients.
- D. Create two separate Access Zones for the SMB clients, and use the System Zone for the NFS clients.
Correct Answer: D 🗳️
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. NL400
- B. S200
- C. X400
- D. X200
Correct Answer: B 🗳️
Which protocols are supported by IsilonOneFS for file access?
- A. NFS, HDFS, HTTP, SMB
- B. FTP, NFS, SMB, FC
- C. SMB, HTTP, SMTP, HDFS
- D. HDFS, NFS, iSCSI, SNMP
Correct Answer: D 🗳️
