Free E20-555 Exam Braindumps

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 between the sites using SyncIQ.
You have been reviewing their disaster recovery plan and found the following:
The policies specify that SyncIQ runs a replication job every four hours and that the job finishes within one 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?

1. A. 3 hours
2. B. 4 hours
3. C. 5 hours
4. D. 6 hours

Correct Answer: B

You have had several discussions with your customer in the processor design industry. They have stated that they want a Scale-Out NAS platform for their design environment. Their most significant responses were "We have 125 design engineers accessing large diagrams and we need high throughput to support them. Can we also get the highest performance available? We need to stay ahead of our competitors." Other areas you discussed were their data retention policies and workflow after the chip design is completed. They plan to archive the design files but the files must stay on line.
What is your initial node recommendation?

1. A. S-Series nodes for the active diagrams and NL Series nodes for the archives
2. B. A-Series nodes for the active diagrams and X-Series nodes for the archives.
3. C. X-Series nodes for the active diagrams and NL 400 nodes for the archives
4. D. X-Series nodes with SSD for the active diagrams and NL nodes for the archives

Correct Answer: A

Refer to the exhibit.

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

1. A. nfsstat and write-intensive access
2. B. iostat and write-intensive access
3. C. Read-intensive access and nfsstat
4. D. isi_netlogger and moderate metadata read operations

Correct Answer: A

Refer to the exhibit.

A customer calls you and asks if you could come by and interpret their InsightIQ data. You see that namespace reads are 63% of the work load.
What would you recommend to help this cluster's namespace performance?

1. A. Add SSDs
2. B. Add A-Series nodes
3. C. Add S-Series nodes
4. D. Turn off write cache

Correct Answer: A

Your customer has an existing Isilon cluster comprised of five NL-Series nodes. They have a new project that will quadruple their current throughput requirements. Upon reviewing reports in InsightIQ, you see that the aggregate external network throughput is peaking at 600MB/s. The customer states that data is only active for the first 7 days, but they keep it indefinitely.
Which recommendation best supports their growth requirements?

1. A. Add X-Series nodes to the cluster, and use SmartPools to migrate inactive data to the NL-Series nodes.
2. B. Use the Isilon Sizing Tool to determine GNA requirements, and add NL-Series nodes with SSD to the cluster.
3. C. Add a VNX Unified array for the new project, and use rsync to migrate data to the Isilon cluster for archiving.
4. D. Add A-Series nodes to the cluster to boost combined network performance.

Correct Answer: A