E20-555 Free Practice Test

Three jobs are running, all with a priority of 5. A new job with a priority of 6 needs to be run. What happens?

1. A. The job engine pauses a priority 5 job and runs the new job until completion, then restarts the paused job from the point at which it was interrupted.
2. B. The job engine runs the new job in parallel with the other jobs.
3. C. The job engine pauses a priority 5 job and runs the new job until completion, then restarts the paused job from the beginning.
4. D. The job engine queues the new job until one of the currently running jobs completes.

Correct Answer: D

A customer experiences a system failure on an Isilon storage node.However, the disk drives in the node are not affected.
What is the preferred method for restoring cluster integrity?

1. A. Engage EMC support to perform a Disk Tango process to move drives, journal, and boot volumes to a replacement chassis
2. B. Allow OneFS to proceed with its automatic SmartFail process to re-protect the failed node
3. C. Migrate the disks from the failed node into spare drive bays on other nodes
4. D. Initiate a manual SmartFail process on the node as it is not started automatically

Correct Answer: A

You have been working with a customer to size a new Isilon cluster for their environment. You recently determined that a cluster with three X400 nodes with 1TB drives and 48 GB RAM would be a perfect starting point for their workflow, but will have extra capacity. The customer just informed you that they have decided to also use the cluster for a small home directory environment and implement SmartQuotas.
Which configuration changes should you consider?

1. A. Increase the memory and add SSDs to the configuration.
2. B. Add an additional X400-Series node to the configuration.
3. C. Add three NL-Series nodes with 1 TB drives with 48GB RAM, and use SmartPools.
4. D. Add three S-Series nodes with 300GB drives with 48GB RAM, and use SmartPools.

Correct Answer: A

An Isilon has two ports configured per node. Each port is on a different VLAN. Although incoming traffic is evenly distributed, transmitted data from the Isilon uses one port more than the other port. What could be the cause of this imbalance?

1. A. Static routes are configured on the less-used port
2. B. A default gateway was not configured on both ports
3. C. Source Based Routing is not enabled on the cluster
4. D. Priority of the gateway in the less-used port set too low

Correct Answer: B

-- 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 data. 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?

1. A. 9.6 TB
2. B. 4.8 TB
3. C. 1.2 TB
4. D. 14.4 TB

Correct Answer: A