E20-555 EMC Isilon Solutions and Design Specialist Exam for Technology Architects Free Practice Exam Questions (2025 Updated)

What determines the number of job engine workers assigned to a task?

Which block size does Isilon SyncIQ use to transfer data?

An Isilon customer expressed an interest in more effectively managing their storage. Specifically, they would like to plan for future growth.

Which tool would allow the customer to forecast capacity requirements?

Which level of control does RBAC provide for cluster administration roles?

Which Isilon job periodically checks disk sectors to ensure they can be read?

Refer to the Exhibit.

What is represented by the information shown?

You are sizing an Isilon Cluster for a new customer. Analyzing their workflow, you determine that they have a small block random read workload.

What is the most important factor to consider when sizing this solution?

A customer requires a backup to tape of their Isilon cluster. They want advice on whether to implement a two-way NDMP solution or a three-way solution. The front-end network must be used to stream data to the backup solution. Which cost-effective solution will meet their needs?

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 have shut down their production cluster for scheduled maintenance, failed over to the DR cluster, and are currently operating from the DR site.

Assume both clusters have identical shares, exports, user authentication. In addition, assume the client applications have been stopped and the DNS re-pointed. What is the easiest SyncIQ Policy method to continue operations on production?

A customer has grown 2 PB in the last year. The cluster performs well most times of the day, but occasionally during the day, the customer notices a decrease in performance. You have been told that ‘tree-deletes’ are taking too long and can only be run on weekends.

What would you recommend to speed up the ‘tree-deletes’?

How many impact policy levels are available when configuring Isilon jobs?

At which level can retention periods be applied with Isilon SmartLock?

Which operational consideration is used in the Isilon Sizing Tool to determine the recommended data

protection?

You are asked to size a cluster for a file sharing environment. nfsstat indicates that no more than 10% of the requests are namespace operations (e.g. GETADDR, SETADDR). There will be 10,000 active Linux users, connecting over NFS.

Which cluster configuration would you recommend?

In an Isilon environment, how is InsightIQ installed?

If a customer experiences a node failure while at 90% capacity, what is the fastest way of replacing the node in an Isilon cluster?

You have been invited to meet with the Social Media and Marketing Department and gather requirements for a potential File System Project. They primarily use CIFS and are considering deploying a Hadoop cluster to analyze customer demographic data. The Senior Systems Engineer thinks they will need 2PB of usable capacity.

What would you do to gain an understanding of the customer’s environment to qualify and develop the opportunity?

Which data access pattern uses moderate prefetching?

Which OneFS feature enables you to host multiple tenants from mutually untrusting AD authentication environments from the same DNS namespace?