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Last Updated: Sep 17, 2026
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Isilon E20-553 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Troubleshooting and Maintenance | - Common cluster issues and resolution - System monitoring and alerts - Log analysis and diagnostics |
| Topic 2: Isilon Cluster Architecture (OneFS) | - OneFS distributed file system fundamentals - Data layout and protection mechanisms (erasure coding, mirroring) - Cluster nodes, roles, and architecture components |
| Topic 3: Cluster Configuration and Administration | - SmartPools policy management - Initial cluster setup and configuration - Storage provisioning and management |
| Topic 4: Performance and Scalability | - SmartConnect load balancing - Performance monitoring and tuning - Cluster scaling strategies |
| Topic 5: Data Protection and Availability | - Snapshots and snapshot schedules - SyncIQ replication and disaster recovery - Backup integration (NDMP) |
| Topic 6: Data Access and Protocols | - NFS and SMB configuration and optimization - Authentication and identity management integration - Multiprotocol environments |
Isilon Infrastructure Specialist Exam for Technology Architects Sample Questions:
Which impact policies are available on an Isilon cluster?
- A. High, Medium, Low, Auto
- B. ASAP, High, Medium, Low
- C. High, Medium, Low, Default
- D. High, Medium, Low, Paused
Correct Answer: D 🗳️
Which Isilon OneFS protection level allows you to withstand two drive failures but no more than
one complete node failure?
- A. N+1
- B. N+2:1
- C. N+3:1
- D. N+2
Correct Answer: B 🗳️
Which protocol does Isilon OneFS integrate with to provide on-access file scan functionality?
- A. REST
- B. IANA
- C. ICAP
- D. HTTPS
Correct Answer: C 🗳️
How can an Isilon cluster simplify a Hadoop workflow that analyzes large amounts of log data written to storage using FTP and where results are viewed by Microsoft Windows clients?
- A. FTP and SMB protocol support covers log ingest and Windows clients; SmartPools will stub to HDFS helping to reduce the frequency of external data migration.
- B. FTP, SMB, and HDFS NameNode and DataNode protocol support on the same file system enables each workflow step to access data from the same location avoiding data migration.
- C. SmartConnect directs clients to an external Hadoop NameNode and to SMB shares so data ingest, analytics, and results phases are transparently directed.
- D. SyncIQ migrates the log data between an Isilon cluster and another Hadoop cluster, retrieves results from the Hadoop cluster, and stores them in an SMB share.
Correct Answer: B 🗳️
An Isilon customer has a replication policy setup between a primary cluster and a secondary cluster. After the initial synchronization of the clusters, the primary cluster starts to exhibit issues so the customer initiates a failover operation between the two clusters.
During the failover, the primary cluster becomes fully operational again. The customer would like to stop the failover operation between the two clusters.
What is the best way to stop the failover operation and continue using the primary cluster?
- A. Initiate a failover revert on the secondary cluster
- B. Delete the primary clusters' snapshot of this data
- C. Nothing; this is an automatic process
- D. Initiate a failover revert on the primary cluster
Correct Answer: A 🗳️
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