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Isilon E20-553 : Isilon Infrastructure Specialist Exam for Technology Architects

E20-553

Exam Code: E20-553

Exam Name: Isilon Infrastructure Specialist Exam for Technology Architects

Updated: Aug 29, 2026

Q & A: 82 Questions and Answers

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Isilon E20-553 Exam Syllabus Topics:

SectionObjectives
Data Protection and Availability- Snapshots and snapshot schedules
- Backup integration (NDMP)
- SyncIQ replication and disaster recovery
Isilon Cluster Architecture (OneFS)- Cluster nodes, roles, and architecture components
- Data layout and protection mechanisms (erasure coding, mirroring)
- OneFS distributed file system fundamentals
Troubleshooting and Maintenance- Log analysis and diagnostics
- Common cluster issues and resolution
- System monitoring and alerts
Data Access and Protocols- Authentication and identity management integration
- NFS and SMB configuration and optimization
- Multiprotocol environments
Performance and Scalability- SmartConnect load balancing
- Cluster scaling strategies
- Performance monitoring and tuning
Cluster Configuration and Administration- Initial cluster setup and configuration
- SmartPools policy management
- Storage provisioning and management

Isilon Infrastructure Specialist Exam for Technology Architects Sample Questions:

Question 1

A customer has two data centers (Site A and Site B) and in each data center there is an Isilon cluster. They are replicating data using SyncIQ between the two data centers. You have been reviewing their disaster recovery plan and found the following:
-The policies specify that SyncIQ runs a replication job every 2 hours and that the job finishes within 1 hour. -Three additional hours will be needed to get servers and the network redirected to work from Site B.
What is the Recovery Point Objective in this plan?

A. 3 Hours
B. 4 Hours
C. 5 hours
D. 2 Hours


Question 2

A customer is planning an Isilon deployment for use with their Hadoop environment. What is one advantage of using Isilon as the HDFS layer in this instance?

A. Integrates storage into Hadoop compute for more flexibility
B. Facilitates independent scaling of compute and storage nodes
C. Provides single protocol access to data
D. Allows the compute nodes to apply data protection


Question 3

How does Isilon SnapshotIQ use storage for snapshots?

A. Works with 4 KiB blocks and will always use that amount of storage, no matter what has changed
B. Uses Changed Block Tracking but always uses a 4 KiB block, even if the data changed is less than that amount
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


Question 4

An Isilon customer would like to have different snapshot policies and schedules on the same directory. Why is this possible on an Isilon cluster?

A. All snapshots are scheduled through the CLI
B. SnapshotIQ snaps at the directory level not the volume level
C. SnapshotIQ uses a third-party product to create different schedules and policies on a directory
D. SnapshotIQ snaps at the volume level not the directory level


Question 5

Which protocol does Isilon OneFS integrate with to provide on-access file scan functionality?

A. REST
B. IANA
C. HTTPS
D. ICAP


Solutions:

Question 1
Answer: A
Question 2
Answer: B
Question 3
Answer: D
Question 4
Answer: B
Question 5
Answer: D

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