EMC Isilon Solutions and Design Specialist Exam for Technology Architects - E20-555 Exam Questions

QUESTION NO: 1
A company currently has numerous file servers providing home directories for its employees. Some departments have their own file servers. All corporate users authenticate using Active Directory. The engineering department has their own untrusted AD domain for their file servers.
The company is looking for a consolidated solution that requires minimal changes to the environment, and that creates a single namespace for the home directories.
What is the recommended solution that will meet this company's requirements?

QUESTION NO: 2
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?

QUESTION NO: 3
-- Exhibit --
We have been engaged by a research hospital to help upgrade their Isilon installation. They currently have 12 previous generation Isilon nodes with 200TB of capacity and run on a 1Gbps network. They currently have 6 Illumina Hi-Seq Sequencers and an HPC cluster to process dat a. They would like to expand Isilon to 2PB of active data and 1PB of archive data. They use a third party data and metadata management service (IRODs) to stage data for analysis. The Isilon cluster is mainly used for analysis work with the HPC cluster.
-- Exhibit --
The customer will add two more Illumina Hi-Seq Sequencers in the next 6 months.
Once these are added, what is the total amount of data from all the sequencers they can expect to add per month?

QUESTION NO: 4
You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs.
What would be a good prequalifying question to ask?

QUESTION NO: 5
A company currently has multiple fileservers to provide home directories for its employees. Each department has a separate fileserver. Most corporate users are on Windows clients and utilize Active Directory, except for the Engineering department, which uses Linux and NIS for authentication. The company is looking for a solution with minimal administrative overhead and a single namespace for the home directories.
What is the recommended solution that will meet this company's requirements?

QUESTION NO: 6
A customer is considering the use of RBAC to centrally administer user accounts that can log into multiple Isilon clusters. What is a potential capability for the customer?

QUESTION NO: 7
A potential customer uses a solution from an EMC competitor for NFS storage in their main data center. The existing arrays are five years old, and the customer would like to consolidate them into a single new system. The entire workload is generated by eight Linux hosts connected to the arrays that process video files. The customer informs you they are not able to collect performance information from the existing arrays.
Which tools can capture the workload requirements?

QUESTION NO: 8
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?

QUESTION NO: 9
A new customer is interested in an Isilon Gen 6 solution to replace their sprawling and outdated Linux environment. Which client tool should you use to establish an estimate of the workload and pattern as an input to the sizing process?

QUESTION NO: 10
An Isilon customer wants a job to periodically check disk sectors to ensure they can be read. What should be recommended to the customer?

QUESTION NO: 11
An Isilon customer needs to grant a specific administrator on RBAC privilege. What does the customer need to do?

QUESTION NO: 12
What determines the number of job engine workers assigned to a task?

QUESTION NO: 13
A customer is evaluating Isilon and Pure FlashBlade solutions. Which protocol is available for both solutions?

QUESTION NO: 14
Your customer is looking for a storage solution that will be able to store seven million 3 MB files which are written and seldom accessed. Read and write operations are both completed by a web-based application, which requires 1.3 Gbps throughput. The customer's network has not been upgraded in many years, so the network interfaces are 1 Gbps.
What would be the best solution for this network configuration?

QUESTION NO: 15
You are asked to size a cluster for a file sharing environment. nfsstat indicates that 75% of the requests are namespace operations (e.g., GETADDR, SETADDR). There will be 8,000 active Linux users, connecting over NFS.
Which cluster configuration would you recommend?