EMC E20-554 : Isilon Design Specialist Exam for Technology Architects
- Exam Code: E20-554
- Exam Name: Isilon Design Specialist Exam for Technology Architects
- Updated: Oct 02, 2026
- Q & A: 81 Questions and Answers
About EMC E20-554 Exam Questions
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EMC E20-554 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| System Management and Operations | - Monitoring and maintenance - Security and access control - Upgrades and lifecycle management |
| Data Protection and Availability | - Snapshot and backup integration - Protection levels and mirroring strategies - Disaster recovery design |
| Networking and Protocols | - Network topology design - Client access optimization - NFS, SMB, and multiprotocol environments |
| Cluster Design and Sizing | - Scale-out design principles - Performance considerations - Capacity planning and workload assessment |
| Isilon Architecture and Components | - OneFS architecture fundamentals - Node types and cluster design - Data layout and striping methodology |
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
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. Add X-Series nodes to the cluster, and use SmartPools to migrate inactive data to the NL-Series nodes.
- B. Add a VNX Unified array for the new project, and use rsync to migrate data to the Isilon cluster for archiving.
- C. Add A-Series nodes to the cluster to boost combined network performance.
- D. Use the Isilon Sizing Tool to determine GNA requirements, and add NL-Series nodes with SSD to the cluster.
Correct Answer: A 🗳️
A potential customer has about 540TB of NetApp running in ONTAP 7-Mode. They are willing to let you gather some workload data. They have LDAP and Active Directory authentication and primarily Windows Clients. They are very interested in Automated Tiering and Large Scale Archives. They are not certain about the workflows from the Marketing Department. The Content Team will only say they need to acquire 300 TB within 90 days. They do not know the average file size or the number of aggregates they are managing.
Which tools would you use to gather information to do your Isilon sizing?
- A. isi status, isi_netlogger, and PerfMon
- B. Isilon Insight IQ, OnCommand Insight, and nfsstat
- C. Wireshark, isi statistics, and iostat
- D. MiTrendWPA ,Autosupport, and PerfCollect
Correct Answer: D 🗳️
Refer to the exhibit.
Which tool was used to create this output and which line item counts the metadata read operations occurring in the file service?
- A. tcpdump and nfsstat
- B. isi_netlogger and commit
- C. iostat and fsstat
- D. nfsstat and getattr
Correct Answer: D 🗳️
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 two separate Access Zones for the SMB clients, and use the System Zone for the NFS clients.
- D. Create separate Access Zones for both the SMB and NFS clients.
Correct Answer: C 🗳️
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. Two
- B. One
- C. Three
- D. None
Correct Answer: D 🗳️
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