Learn with Isilon : E20-553 training material for 100% pass
Updated: Sep 09, 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 |
| Available Languages: | English |
| Passing Score: | 63% |
| Exam Format: | Scenario-based Questions, Multiple Choice |
| Related Certifications: | Isilon Implementation Engineer Dell EMC Proven Professional Data Scientist & Storage Certifications |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 60 |
| Exam Price: | USD 200 |
| Certificate Validity Period: | Retired (historical exam; no longer actively offered under current Dell certification tracks) |
| Recommended Training: | OneFS Storage Management Courses Dell EMC Isilon Administration Training |
| Exam Registration: | Pearson VUE Exam Registration Dell Technologies Proven Professional Certification Portal |
| 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 |
|---|---|
| Cluster Configuration and Administration | - Storage provisioning and management - Initial cluster setup and configuration - SmartPools policy management |
| Data Access and Protocols | - Authentication and identity management integration - Multiprotocol environments - NFS and SMB configuration and optimization |
| Troubleshooting and Maintenance | - System monitoring and alerts - Log analysis and diagnostics - Common cluster issues and resolution |
| Isilon Cluster Architecture (OneFS) | - OneFS distributed file system fundamentals - Data layout and protection mechanisms (erasure coding, mirroring) - Cluster nodes, roles, and architecture components |
| Performance and Scalability | - Performance monitoring and tuning - SmartConnect load balancing - Cluster scaling strategies |
| Data Protection and Availability | - Backup integration (NDMP) - Snapshots and snapshot schedules - SyncIQ replication and disaster recovery |
Isilon Infrastructure Specialist Exam for Technology Architects Sample Questions:
Refer to Exhibit below:
What is represented by the information shown in the exhibit?
- A. Directory quota cannot exceed 2 TB for /ifs/data/media and no quota limit on /ifs/data/media/photo.
Directory quota cannot exceed 900 GB for /ifs/data/media/video.
Directory quota can be any size up to 2 TB and each user can only store 75 GB for
/ifs/data/media/temp. - B. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.
Directory quota cannot exceed 900 GB for /ifs/data/media/video.
Directory quota can be any size up to 900 GB and each user can only store 75 GB for
/ifs/data/media/temp. - C. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.
Directory quota cannot exceed 900 GB for /ifs/data/media/video.
Directory quota can be any size up to 2 TB and each user can only store 75 GB for
/ifs/data/media/temp. - D. Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.
Directory quota cannot exceed 900 GB for /ifs/data/media/video.
Directory quota can be any size up to 2 TB for /ifs/data/media/temp.
Correct Answer: C 🗳️
How does Isilon SnapshotIQ use storage for snapshots?
- A. Uses Changed Block Tracking but always uses a 4 KiB block, even if the data changed is less than that amount
- B. Works with 4 KiB blocks and will always use that amount of storage, no matter what has changed
- C. Works on the file level and saves the entire file no matter what has changed
- D. Uses Changed Block Tracking and only saves the changed data blocks
Correct Answer: D 🗳️
A customer's Isilon storage administrator is concerned about capacity after recently ingesting 200 TB of file data. The customer has recently added more nodes to the cluster and wants to auto-balance the cluster as soon as possible. The cluster utilization percentages for an average 24hour period are:
-45% during 00:00 - 08:59 -60% during 09:00 - 17:00 -% during 17:01 - 23:59
While keeping cluster utilization at a minimum, which Impact Policy settings will allow the job to complete quickly without impacting the production workload?
- A. Medium, Low, Low
- B. Medium, Medium, Low
- C. High, Medium, Paused
- D. High, High, Low
Correct Answer: B 🗳️
A customer plans to consolidate 200 TB of digital images and video content. Performance is important for recently created files. However, the customer wants any content that has not been accessed within 30 days to be stored in the cluster at a much lower cost because performance is no longer critical. Which Isilon configuration should be recommended?
- A. S-Series nodes, X-Series nodes, and SmartPools
- B. X-Series nodes and SmartQuotas
- C. X-Series nodes, NL-Series nodes, and SmartPools
- D. NL-Series nodes and SmartLock
Correct Answer: C 🗳️
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. Delete the primary clusters' snapshot of this data
- B. Initiate a failover revert on the primary cluster
- C. Initiate a failover revert on the secondary cluster
- D. Nothing; this is an automatic process
Correct Answer: C 🗳️
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