EMC E20-554 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Features and Functionality | 20% | - Deduplication, compression, and data efficiency - Security and authentication - SnapshotIQ, SyncIQ, SmartQuotas - Multi-protocol access and identity management |
| Network and Connectivity Design | 20% | - Client access protocols (NFS, SMB, HTTP, HDFS) - SmartConnect configuration - Bandwidth and redundancy planning - Network topology and protocols |
| Solution Design and Sizing | 10% | - Cluster design best practices - Scalability and expansion planning - Workload analysis and requirements gathering |
| Isilon Architecture and Concepts | 25% | - Scale-out NAS architecture - OneFS file system fundamentals - Data protection and protection levels - Node types and hardware platforms |
| Capacity and Performance Design | 25% | - Capacity planning and sizing - Performance requirements analysis - SSD use cases and caching - SmartPools and tiering strategy |
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
1. Your customer uses an existing Isilon cluster consisting of five NL-Series nodes to source broadcast media files for playback and streaming. The customer reports that the playback pauses and stutters regularly. It has been confirmed that there are no network or playback system issues.
Which is the appropriate choice to resolve the playback issues?
A) Upgrade OneFS to the latest version
B) Enable Level 2 caching
C) Add three or more S-Series nodes
D) Enable SmartConnect Advanced
2. You get a call from a customer that has just added 200 user connections to the cluster. They want to know how fast they are writing data with these new users.
What tool would you use to gather this information?
A) InsightIQ
B) Watch4net
C) Wireshark
D) Network Monitor
3. A customer has grown 2 PB in the last year. The cluster performs well most times of the day, but occasionally during the day, the customer notices a decrease in performance. You have been told that 'tree-deletes' are taking too long and can only be run on weekends.
What would you recommend to speed up the 'tree-deletes'?
A) Add an SSD tier for metadata, ensuring all nodes have SSDs.
B) Add 20% more nodes to the cluster to help with degraded performance.
C) Use an A100 node for added CPU performance to help with 'tree-deletes.'
D) Add an SSD node tier for metadata to account for at least 2% of RAW capacity
4. When conducting high-level interviews with stakeholders of a project, what are the key questions that should be asked?
A) 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?
B) Which backup application is in use today?
What is your change rate?
How many clients will connect to the cluster?
C) How much usable storage are you looking for? What client OS will access this storage? Which applications will access this storage?
D) 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?
5. Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for their video surveillance operations.
They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec, with a 30 days retention policy.
How many nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?
A) 4 nodes
B) 16 nodes
C) 8 nodes
D) 12 nodes
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: C |
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