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Last Updated: Sep 24, 2026
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EMC E20-554 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Capacity and Performance Design | 25% | - Capacity planning and sizing - SmartPools and tiering strategy - SSD use cases and caching - Performance requirements analysis |
| Solution Design and Sizing | 10% | - Scalability and expansion planning - Workload analysis and requirements gathering - Cluster design best practices |
| Isilon Architecture and Concepts | 25% | - Node types and hardware platforms - Scale-out NAS architecture - OneFS file system fundamentals - Data protection and protection levels |
| Network and Connectivity Design | 20% | - Bandwidth and redundancy planning - Client access protocols (NFS, SMB, HTTP, HDFS) - SmartConnect configuration - Network topology and protocols |
| Features and Functionality | 20% | - Security and authentication - SnapshotIQ, SyncIQ, SmartQuotas - Multi-protocol access and identity management - Deduplication, compression, and data efficiency |
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
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.
Which storage capacity would be the best suited to meet the required changes and utilize 65-75% capacity?
- A. 80TB
- B. 50TB
- C. 140TB
- D. 110TB
Correct Answer: D 🗳️
A four-node Isilon cluster is being used in a Hadoop workflow with a parity protection of N+2:1. The HDFS protocol has been enabled and is being used to access data.
According to EMC best practices, how many additional many additional copies of data are written into the Isilon cluster using HDFS?
- A. One
- B. None
- C. Two
- D. Three
Correct Answer: B 🗳️
Which protocols are supported by IsilonOneFS for file access?
- A. HDFS, NFS, iSCSI, SNMP
- B. NFS, HDFS, HTTP, SMB
- C. SMB, HTTP, SMTP, HDFS
- D. FTP, NFS, SMB, FC
Correct Answer: A 🗳️
Refer to the exhibit.
Your customer has three different clusters. File systems on two of the clusters are at 90% full, and the largest cluster is 10% full. Active data resides on the largest cluster. The customer has five different node types totaling 2PB and 54 nodes. Nodes from left to right are as shown:
1. X200
2.12000X
3.36000X
4.NL108
5.108NL
They have a Smartpool license and believe that tiering data would help free up needed space.
After talking with the customer and explaining the use of SmartPools, how would you recommend optimizing utilization across all of the nodes that the customer owns?
- A. Go to GUI and put alike nodes in the same pools. Then name them.
- B. Borrow nodes to reconfigure the cluster and migrate the data to new cluster.
- C. Explain to the customer that this will result in data loss.
- D. Attach all nodes to a common Infiniband switch.
Correct Answer: D 🗳️
You have 1000 users for an application that reads and writes files averaging between one and four MB in size. Each user requires 24 MB of RAM. You want to add another 1000 users for this application, and in preparation for them, you run the isi statistics command. You discover that the average CPU utilization is 20%; aggregate throughput averages 700 MB/s and the disk QueueD average is 1.5. Your cluster currently has five X200 (12 GB RAM, 1 TB drive) nodes, uses N+2:1 protection and 1 GigE networking.
What should you do to accommodate the next 1000 users?
- A. Add five A100 (24 GB RAM) accelerator nodes.
- B. Upgrade two of the 1 GigE NICs to 10 GigE on each node.
- C. Add five additional X200 (12 GB, 1 TB drive) nodes
- D. Upgrade each X200 node to a total of 24 GB of RAM.
Correct Answer: C 🗳️
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