EMC E20-655 Online Practice Questions and Exam Preparation

EMC E20-655 Online Questions & Answers

• Question 71:

  You are troubleshooting LDAP cluster integration.

  What could you use to verify that the cluster can communicate to the configured LDAP server?

  A. isi auth
  B. dcpromo
  C. isi sync
  D. isi job
  A. isi auth

• Question 72:

  Which element of the command syntax: "isi sync policies modify exam_policy1 --log-level error" is "modify"?

  A. Action
  B. Option
  C. Command
  D. Subcommand
  A. Action

• Question 73:

  You run the command "isi get -DD /ifs/data/foo.txt" on a 4 node cluster. The displayed results indicate a protection level of 6+2/2. What statement best describes 6+2/2?

  A. Protection level of N+2:1; Contains 6 data stripes units and 2 FEC stripe units; Written to 2 drives per node
  B. Protection level of N+2:1; Contains 8 data stripe units and 2 FEC stripe units; Written to 2 drives per node
  C. Protection level of N+2: Contains 8 data stripe units and 2 FEC stripe units; Written to 1 drive per node
  D. Protection level of N+1: Contains 6 data stripe units and 1 FEC stripe unit; Written to 1 drive per node
  A. Protection level of N+2:1; Contains 6 data stripes units and 2 FEC stripe units; Written to 2 drives per node

• Question 74:

  In a 4-node cluster using N+3:1 protection, how much is the overhead?

  A. 25%
  B. 50%
  C. 300%
  D. 100%
  A. 25%

• Question 75:

  What will be displayed after running the netstat -r command on the cluster?

  A. Content of the routing table
  B. Network utilization of a node
  C. Network traffic received by the cluster
  D. Network utilization of the cluster
  A. Content of the routing table

• Question 76:

  What description best fits sysctl on Isilon nodes?

  A. It is a dangerous tool that can severely affect cluster operations and should only be used with great care.
  B. It has no chance of harming the cluster, so it can be used freely by any operator.
  C. It is dangerous, but parameters do not change from version to version and are safe to modify based on prior knowledge.
  D. It can be safely used as long as only local node parameters are altered, rather than network parameters.
  A. It is a dangerous tool that can severely affect cluster operations and should only be used with great care.

• Question 77:

  Which job engine v2.0 component runs on a node, communicates with the job coordinator and coordinates tasks with the three managers on the cluster?

  A. Director
  B. Coordinator
  C. Managers
  D. Workers
  A. Director

• Question 78:

  Referring to the data protection formula N+M, what does the N stand for?

  A. Number of data stripe units
  B. Number of protection stripe units
  C. Number of nodes in the node pool
  D. Number of nodes the file is striped across
  A. Number of data stripe units

• Question 79:

  What statement best describes the "isi devices" command?

  A. Displays drive status, serial number and bay number
  B. Displays device firmware information including NVRAM
  C. Node level health check command
  D. Cluster level health check command
  A. Displays drive status, serial number and bay number

• Question 80:

  Which two isi_ prefix commands are allowed for use by a customer?

  A. isi_gather_info and isi_for_array
  B. isi_gather_info and isi_radish
  C. isi_for_array and isi_inventory_tool
  D. isi_gather_info and isi_hw_status
  A. isi_gather_info and isi_for_array