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

QUESTION NO: 1
In what order does an Isilon Gen 6 cluster respond to a client file read request?
Correct Answer:
QUESTION NO: 2
When an Isilon SyncIQ replication job completes, how many SnapshotIQ policies can be created on a target cluster directory?

Correct Answer: A
QUESTION NO: 3
You have gathered information from your customer about their current NAS environment. They indicated they are having performance and time-out issues with their clients accessing the storage. Currently over 5000 clients are simultaneously accessing the NAS; however, this will double in the next year.
Based on this information, what recommendations for a new Isilon cluster would you give to the customer based on this information?

Correct Answer: C
QUESTION NO: 4
In an Isilon cluster, what is the largest number of nodes that a single file can be striped across?

Correct Answer: C
QUESTION NO: 5
Traditional NAS storage architecture deploys simple two-way failover between two controllers in their storage systems, such as highly-available configurations. How is the Isilon architecture different in terms of system resiliency and availability?

Correct Answer: A
QUESTION NO: 6
An Isilon customer has set up a replication policy between a primary cluster and a secondary cluster. After the initial synchronization of the clusters, the primary cluster starts to display some issues. The customer initiates a failover operation between the two clusters.
During the failover, the primary cluster becomes fully operational again. The customer wants 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?

Correct Answer: C
QUESTION NO: 7
A 6 F800 node Isilon cluster has one subnet with two IP pools with LACP aggregated 10GigE interfaces from all the nodes in the 'Data-Zone' Access Zone. The 'NFS-Pool' with dynamic IP Allocation schema and 'SMBPool' with static IP Allocation schema are being used.
All the Linux clients are accessing Isilon exports using NFSv3 via the 'NFS_Pool'. All the Windows clients are accessing Isilon shares using SMBv3 via the 'SMB_Pool'.
While deploying Isilon, the customer reserves the whole network subnet for Isilon. The customer is facing performance issues with a new workload that is accessing the Isilon via Kerberized NFSv4.
What is recommended when creating a new IP pool for NFSv4 clients?

Correct Answer: A
QUESTION NO: 8
Where is caching for disk blocks staged on an Isilon node?

Correct Answer: A
QUESTION NO: 9
What is the relative latency of a cache hit to L1 cache compared to a hit to L2 cache in an Isilon cluster?

Correct Answer: C
QUESTION NO: 10
You have scheduled a meeting with a prospective customer in the Life Sciences vertical market. Which Isilon features should be presented to them?

Correct Answer: C
QUESTION NO: 11
Which Isilon OneFS protection level allows you to withstand two drive failures but no more than one complete node failure?

Correct Answer: D
QUESTION NO: 12
Your customer has several departments that want separate access to the cluster so they can use their individual authentication methods. Two of the departments will use NFS and two will use SMB to access the cluster.
What would you recommend?

Correct Answer: C
QUESTION NO: 13
Which Isilon product is recommended where low-latency and maximum performance is a critical factor?

Correct Answer: A
QUESTION NO: 14
In an Isilon cluster for N+2 protection, what is the minimum number of nodes?

Correct Answer: C
QUESTION NO: 15
Which level of control does RBAC provide for cluster administration roles?

Correct Answer: C
QUESTION NO: 16
You have received a critical task that requires immediate analysis of system performance. Captured data will later be processed by MiTrend, but a current assessment is not available.
Which utility will quickly provide IOPS associated with reads and writes, CPU utilization, and I/O scheduler wait time?

Correct Answer: D
QUESTION NO: 17
Using Isilon SnapshotIQ, how many snapshots can be created at the directory level?

Correct Answer: B
QUESTION NO: 18
A customer is looking for a new storage solution to handle their growing storage requirements. The system should be able to cover storage needs for the next three years. The environment consists of 100 TBs of file system data spread across five file systems. On average, the file systems grow 1 TB a month. In addition, they have a large VMware cluster supporting 200 VMs and a highly transactional database.
The customer is looking for a solution that would provide good performance, scalability, manageability, and be cost-effective. The sales team is looking to you to recommend a solution.
Which recommendation will meet the customer's requirements?

Correct Answer: A
QUESTION NO: 19
If snapshots are configured for the InsightIQ datastore on Isilon and the datastore is reverted to a previous snapshot, what might be the result?

Correct Answer: C
QUESTION NO: 20
A NetApp customer is considering Isilon. They use their filers for UNIX home directories, and would like to see a suggested configuration that would meet their needs.
What would you do to help size this cluster?

Correct Answer: B
QUESTION NO: 21
What determines how a user is directed to the correct secure multi-tenancy access zones?

Correct Answer: B
QUESTION NO: 22
A customer plans to replace an existing array that is supported by the MiTrend Workload Profile Assessment (WPA) service. You receive performance data from the customer and run a WPA report that shows the array has 50TB of usable capacity.
In discussions with the customer, you learn the content is comprised of four million 6MB files and 400 million 64KB files. The customer explains they have a small budget and very limited rack space available in their datacenter. Performance is not a concern because the files are rarely accessed.
Which configuration provides the needed usable capacity using N+2:1 protection, and requires the least amount of rack space?

Correct Answer: A
QUESTION NO: 23
A customer wishes to back up their Isilon cluster via NDMP using a software package that supports NDMP connectivity. The backup process will require the cluster to create a point-in-time copy of the directory to be backed up.
Which OneFS feature(s) will need to be licensed?

Correct Answer: B
Explanation: (Only visible to Actual4test members)
QUESTION NO: 24
An Isilon cluster component has the following characteristics:
* Spans 3 - 40 nodes
* Logical grouping of drives
* Automatically assigned
* Intelligently distributes disks to manage performance
Which cluster component is described?

Correct Answer: A
QUESTION NO: 25
Refer to the exhibit.

Which tool was used to create this output and what is the most telling characteristic?

Correct Answer: D
QUESTION NO: 26
What is the minimum number of connected and available nodes required to maintain quorum in a 25-node Isilon cluster?

Correct Answer: D
QUESTION NO: 27
At a minimum, how many connected and available nodes are required to maintain quorum in a 25-node cluster?

Correct Answer: D
QUESTION NO: 28
A four node F800 Isilon cluster running OneFS 8.2.1 has a dedicated subnet and IP pool for SMB data traffic.
SmartConnect Advanced license is applied. The SMB IP pool consists of LACP aggregated. 10GigE interfaces from all the nodes.
What is the maximum number of SmartConnect Service IPs recommended for the SMB subnet?

Correct Answer: C
Explanation: (Only visible to Actual4test members)
QUESTION NO: 29
How much space is consumed by a 4 KB file when the file data is written to the Isilon cluster?

Correct Answer: B

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