EMC E20-655 Online Practice Questions and Exam Preparation

EMC E20-655 Online Questions & Answers

• Question 81:

  Which condition could make it necessary to reset the CELOG DB?

  A. /var partition is >95% full
  B. Always required as part of an upgrade from OneFS 6.0 to 7.x
  C. The LNN rebooted causing the master coalescer function to move
  D. The master coalescer nodes ext-2 interface was added to a different subnet.
  A. /var partition is >95% full

• Question 82:

  A customer has configured Failover on their cluster InfiniBand interfaces. Which InfiniBand interface will the Failover address be bound to?

  A. Neither Int-A nor Int-B
  B. Both Int-A and Int-B
  C. Only Int-A
  D. Only Int-B
  A. Neither Int-A nor Int-B

• Question 83:

  Your customer has reported that one of their FastEthernet clients is not getting the same throughput to their cluster as other FastEthernet clients. What would be the best troubleshooting step?

  A. Verify the link is operating in full duplex mode
  B. Verify the cable is plugged into the switch
  C. Check for a link light on the port
  D. Check for any sharp bends in the InfiniBand cable
  A. Verify the link is operating in full duplex mode

• Question 84:

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

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

• Question 85:

  You are monitoring your customer's cluster and find that almost all of the client activity is occurring on Logical Node Number 1. What is a potential cause of this?

  A. SmartConnect is not configured correctly.
  B. The AutoBalance job is not running.
  C. The CELOG coalescer service is hung.
  D. Only LNN 1 is configured in AIMA.
  A. SmartConnect is not configured correctly.

• Question 86:

  You are working on a nine node cluster with a protection policy of N+2:1.

  How many nodes must be able to communicate with each other across the internal network to maintain a quorum?

  A. 5
  B. 4
  C. 7
  D. 8
  A. 5

• Question 87:

  What would the "tracert" command help determine when troubleshooting client connection issues?

  A. Identify whether multiple paths exist and if one is down
  B. Can measure RTT and Whois information
  C. Tests IP connectivity and Dead Gateway Detection
  D. The current TCP/IP configuration from the client
  A. Identify whether multiple paths exist and if one is down

• Question 88:

  Where do you go to access AVP?

  A. IGS Tools Home Page
  B. Web administration interface, Diagnostics section
  C. Axeda SupportIQ site
  D. Command Line Interface
  A. IGS Tools Home Page

• Question 89:

  A customer has a cluster on which round robin link aggregation has been implemented. The customer reports that throughput has decreased since implementation. What is the likeliest explanation for the result?

  A. Packets may arrive out of order and need reordering at the client side.
  B. Packets are being lost on each node's second interface and need retransmission.
  C. The client side also needs to be configured to handle round robin link aggregation.
  D. The switch needs to reroute each alternating packet, introducing latency.
  A. Packets may arrive out of order and need reordering at the client side.

• Question 90:

  You are troubleshooting LDAP cluster integration.

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

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