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EMC E20-554 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network and Connectivity Design | 20% | - Bandwidth and redundancy planning - Network topology and protocols - SmartConnect configuration - Client access protocols (NFS, SMB, HTTP, HDFS) |
| Topic 2: Capacity and Performance Design | 25% | - SmartPools and tiering strategy - Performance requirements analysis - SSD use cases and caching - Capacity planning and sizing |
| Topic 3: Solution Design and Sizing | 10% | - Workload analysis and requirements gathering - Cluster design best practices - Scalability and expansion planning |
| Topic 4: Isilon Architecture and Concepts | 25% | - OneFS file system fundamentals - Data protection and protection levels - Node types and hardware platforms - Scale-out NAS architecture |
| Topic 5: Features and Functionality | 20% | - Multi-protocol access and identity management - SnapshotIQ, SyncIQ, SmartQuotas - Security and authentication - Deduplication, compression, and data efficiency |
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
When conducting high-level interviews with stakeholders of a project, what are the key questions that should be asked?
- A. How much usable storage are you looking for? What client OS will access this storage? Which applications will access this storage?
- B. What does your network architecture look like?
Do you have existing NAS infrastructure?
Do you have 10Gb or 1Gb ethernet?
Which applications will access this storage? - C. Who are the application owners?
How much usable storage is needed?
What applications will be accessing the storage?
How many users are in your Active Directory? - D. Which backup application is in use today?
What is your change rate?
How many clients will connect to the cluster?
Correct Answer: A 🗳️
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. Two
- C. One
- D. Three
Correct Answer: A 🗳️
Your customer has an existing Isilon cluster comprised of five NL-Series nodes. They have a new project that will quadruple their current throughput requirements. Upon reviewing reports in InsightIQ, you see that the aggregate external network throughput is peaking at 600MB/s. The customer states that data is only active for the first 7 days, but they keep it indefinitely.
Which recommendation best supports their growth requirements?
- A. Use the Isilon Sizing Tool to determine GNA requirements, and add NL-Series nodes with SSD to the cluster.
- B. Add A-Series nodes to the cluster to boost combined network performance.
- C. Add X-Series nodes to the cluster, and use SmartPools to migrate inactive data to the NL-Series nodes.
- D. Add a VNX Unified array for the new project, and use rsync to migrate data to the Isilon cluster for archiving.
Correct Answer: C 🗳️
A healthcare services provider is implementing an X-Series cluster. Currently they have approximately 200 customers and they are growing at 30% per year. They have 200 TB of storage utilized. Health Insurance Portability and Accountability Act (HIPAA) regulations require they keep all patient data for seven (7) years. They would like to keep all genomic sequencing data stored with N+3 protection, not to exceed 75% utilization.
What is the minimum initial configuration you would recommend?
- A. 13 X400 nodes; 1 TB drives
- B. 13 X200 nodes; 3 TB drives
- C. 6 X400 nodes; 4 TB drives
- D. 7 X400 nodes; 1 TB drives
Correct Answer: A 🗳️
-- Exhibit -
We have been engaged by a research hospital to help upgrade their Isilon installation. They currently have 12 previous generation Isilon nodes with 200TB of capacity and run on a 1Gbps network. They currently have 6 Illumina Hi-Seq Sequencers and an HPC cluster to process data. They would like to expand Isilon to 2PB of active data and 1PB of archive data. They use a third party data and metadata management service (IRODs) to stage data for analysis. The Isilon cluster is mainly used for analysis work with the HPC cluster.
-- Exhibit -
Currently, the workflows are being limited by the network access to the Isilon cluster.
What would result in the fastest possible network throughput?
- A. Use LACP to aggregate the network connections.
- B. Move analysis infrastructure to dedicated 10G network.
- C. Implement jumbo frames.
- D. Add four A-Series accelerator nodes.
Correct Answer: B 🗳️
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