EMC E20-555 Online Practice Questions and Exam Preparation

EMC E20-555 Online Questions & Answers

• Question 181:

  An administrator recently installed InsightIQ to gather cluster statistics, and wants to look at file system usage (such as the number of files in a directory). However, currently no file system statistics are displayed in InsightIQ after 24 hours. Use of the cluster is moderate, and occurs 24 hours per day.

  What job for InsightIQ should the administrator modify to successfully report these statistics?

  A. Change priority to 1 and job impact to High for Collect
  B. Change priority to 4 and job impact to Medium for FSAnalyze
  C. Change priority to 7 and job impact to Medium for SmartPools
  D. Change priority to 3 and job impact to Low for MultiScan
  B. Change priority to 4 and job impact to Medium for FSAnalyze

• Question 182:

  DRAG DROP

  What is the correct order of steps taken during the file striping process?

  Select and Place:

  

  

• Question 183:

  An Isilon customer's administrator created the nested directory structure, shown in the exhibit, using SmartQuotas. However, a user needs to write an additional 650 GB of data to "/ifs/data/acct/recv".

  

  Which steps will enable the user to complete this task?

  A. Directory1 QuotA. Increase to 1400 GB User QuotA.Increase to 1000 GB on Subdirectory2
  B. User QuotA. Decrease to 650 GB on Subdirectory2 Directory1 QuotA.Decrease to 1650 GB
  C. User QuotA. Decrease to 400 GB on Subdirectory1 Directory1 QuotA.Increase to 1650 GB
  D. Directory1 QuotA. Increase to 1350 GB User QuotA.Decrease to 1000 GB on Subdirectory1
  A. Directory1 QuotA. Increase to 1400 GB User QuotA.Increase to 1000 GB on Subdirectory2

• Question 184:

  While configuring Isilon SmartConnect, a customer determined that their workload primarily consists of long-lived NFS and SMB connections. Which load-balancing policy will provide the most efficient client distribution?

  A. Random Selection
  B. CPU Utilization
  C. Network Throughput
  D. Connection Count
  C. Network Throughput

• Question 185:

  Which tool measures actual throughput and produces sophisticated graphs?

  A. MiTrend
  B. WireShark
  C. Perfmon
  D. IOZone
  B. WireShark

• Question 186:

  A telecommunications company has a substantial amount of data. This data is being created by network elements within their environment.

  The company wants to change the way the network elements Call Detail Records (CDR) are stored and analyzed. The existing infrastructure consolidates all of the CDRs into a table structure, and then ingests them into a large database. Once ingested, a query engine accesses the database and performs analysis on these files. The system is functional; however, since the amount of CDRs generated will increase exponentially over the next year, the company is open to alternatives for storing and analyzing these records.

  In evaluating alternatives, the key requirements are to reduce cost, the amount of storage, and the amount of time to analyze the data. The customer would like to use Hadoop to analyze the CDRs.

  After you have conducted an assessment of the workflow, you have recommended an Isilon Cluster to work within the Hadoop environment.

  What would be the best recommendation to the customer for the workflow of Hadoop with Isilon?

  A. Copy the CDRs from the source to an Isilon cluster with NFS, then use Hadoop to analyze the information directly over HDFS
  B. Write the CDRs directly to an Isilon cluster with an NFS mount, then use Hadoop to analyze the information directly over HDFS
  C. Copy the CDRs from the source to an Isilon cluster with NFS, then ingest the information into Hadoop for analysis
  D. Write the CDRs directly to an Isilon cluster with an NFS mount, then ingest the information into Hadoop with NFS then analyze
  C. Copy the CDRs from the source to an Isilon cluster with NFS, then ingest the information into Hadoop for analysis

• Question 187:

  Which type of link aggregation is supported with Isilon nodes?

  A. Aggregation of up to eight similar ports in the same cluster
  B. Aggregation across Ethernet ports in a node
  C. Aggregation of 10 GbE and 40 GbE ports
  D. Aggregation across two or four nodes
  B. Aggregation across Ethernet ports in a node

• Question 188:

  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?

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

• Question 189:

  A cluster has user quotas configured for user's home directories with hard limits and advisory limits set. What would the default setting be for calculating user quotas on the cluster?

  A. User data and data protection overhead only
  B. User data only
  C. User data, snapshot data, and data protection overhead
  D. User data and snapshot data only
  C. User data, snapshot data, and data protection overhead

• Question 190:

  An Isilon customer created a scheduled SyncIQ policy to replicate data from an Enterprise-mode SmartLock directory. The source cluster is now unusable and the target cluster does not automatically allow writes to the data in the replicated SmartLock directory.

  What is the reason why the target cluster did not automatically allow writes of the data?

  A. SyncIQ Automated failover is not supported for SmartLock directories; however, manual failover is allowed.
  B. Automated failover and manual failover are not allowed on SmartLock directories on the target cluster.
  C. A SyncIQ job was running while the source cluster became unusable, thereby removing all data on the target directory.
  D. SnapshotIQ was not licensed on the target cluster; the snapshot of the directory is not available for use by SyncIQ.
  A. SyncIQ Automated failover is not supported for SmartLock directories; however, manual failover is allowed.