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Updated: Sep 16, 2026
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Isilon E20-553 Exam Overview:
| Certification Vendor: | Dell EMC (Dell Technologies) |
|---|---|
| Exam Name: | Isilon Infrastructure Specialist Exam for Technology Architects |
| Exam Number: | E20-553 |
| Exam Price: | USD 200 |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Passing Score: | 63% |
| Exam Format: | Multiple Choice, Scenario-based Questions |
| Certificate Validity Period: | Retired (historical exam; no longer actively offered under current Dell certification tracks) |
| Related Certifications: | Isilon Implementation Engineer Dell EMC Proven Professional Data Scientist & Storage Certifications |
| Exam Duration: | 90 minutes |
| Recommended Training: | OneFS Storage Management Courses Dell EMC Isilon Administration Training |
| Exam Registration: | Dell Technologies Proven Professional Certification Portal Pearson VUE Exam Registration |
| Sample Questions: | Isilon E20-553 Sample Questions |
| Exam Way: | Proctored exam delivered via Pearson VUE (online or test center) |
| Pre Condition: | Recommended knowledge of enterprise storage systems, networking fundamentals, and Dell EMC Isilon/OneFS concepts. Prior experience with storage administration is highly beneficial. |
| Official Syllabus URL: | https://education.dell.com |
Isilon E20-553 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Access and Protocols | - Authentication and identity management integration - NFS and SMB configuration and optimization - Multiprotocol environments |
| Data Protection and Availability | - SyncIQ replication and disaster recovery - Backup integration (NDMP) - Snapshots and snapshot schedules |
| Performance and Scalability | - Performance monitoring and tuning - Cluster scaling strategies - SmartConnect load balancing |
| Isilon Cluster Architecture (OneFS) | - OneFS distributed file system fundamentals - Cluster nodes, roles, and architecture components - Data layout and protection mechanisms (erasure coding, mirroring) |
| Troubleshooting and Maintenance | - Log analysis and diagnostics - System monitoring and alerts - Common cluster issues and resolution |
| Cluster Configuration and Administration | - Storage provisioning and management - Initial cluster setup and configuration - SmartPools policy management |
Isilon Infrastructure Specialist Exam for Technology Architects Sample Questions:
Which Isilon job periodically validates the checksum of every block in the file system?
- A. MediaScan
- B. Dynamic Sector Repair
- C. Isilon Data Integrity
- D. IntegrityScan
Correct Answer: A 🗳️
An Isilon customer needs to provide low latency I/O for their files due to a workflow which involves small, random reads and writes. Which SSD strategy is most effective for this use case?
- A. Metadata read/write acceleration
- B. Avoid SSDs
- C. Metadata read acceleration
- D. Data on SSDs
Correct Answer: D 🗳️
An Isilon customer implemented a retention period at the directory level. In addition, the customer set individual retention periods on individual files within those directories.
Which retention periods will be enforced?
- A. Latest retention period
- B. Earliest retention period
- C. File-level retention
- D. Directory-level retention
Correct Answer: A 🗳️
An Isilon customer has two 5-node clusters; one for production and one for disaster recovery (DR). The customer's workflows are replicated to the DR cluster through SyncIQ on individual schedules. They shutdown their production cluster for a scheduled DR test, failed over to the DR cluster, and continue their DR testing.
Assume both clusters have identical shares, exports, and user authentication and that the client applications have been stopped and the DNS re-pointed. What is the correct method to continue production operations?
- A. Initiate Manual Failback of the SyncIQ Policy
- B. Initiate Automated Failback of the SyncIQ Policy
- C. No change to the SyncIQ Policy
- D. Revert the SyncIQ Policy
Correct Answer: D 🗳️
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. Nothing; this is an automatic process
- B. Initiate a failover revert on the secondary cluster
- C. Delete the primary clusters' snapshot of this data
- D. Initiate a failover revert on the primary cluster
Correct Answer: B 🗳️
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