EMC E20-555 Online Practice Questions and Exam Preparation

EMC E20-555 Online Questions & Answers

• Question 141:

  You are designing a backup solution using an NDMP redirector and throttler. What is the default threshold percentage of CPU resources that the throttler limits NDMP to?

  A. 25
  B. 45
  C. 50
  D. 60
  C. 50

• Question 142:

  In an Isilon cluster for N+2 protection, what is the minimum number of nodes?

  A. 3
  B. 5
  C. 6
  D. 9
  B. 5

• Question 143:

  In a multi-tenant environment, which OneFS feature can be used to isolate and secure data from each tenant?

  A. Groupnets
  B. ZRBAC
  C. Access Zones
  D. RBAC
  C. Access Zones

• Question 144:

  When an Isilon SyncIQ replication job completes, how many SnapshotIQ policies can be created on a target cluster directory?

  A. 1
  B. 2
  C. 3
  D. 4
  D. 4

• Question 145:

  What is the sector size of an Isilon 8 TB drive?

  A. 512 bytes
  B. 1024 bytes
  C. 2048 bytes
  D. 4096 bytes
  A. 512 bytes

• Question 146:

  Your customer uses an existing Isilon cluster consisting of five NL-Series nodes to source broadcast media files for playback and streaming.The customer reports that the playback pauses and stutters regularly. It has been confirmed that there are no network or playback system issues.

  Which of the choices listed is the appropriate choice to address the playback issues?

  A. Add three or more S-Series Nodes
  B. Upgrade OneFS to the latest version
  C. Enable SmartConnect Advanced
  D. Enable Level 2 Caching
  A. Add three or more S-Series Nodes

• Question 147:

  An Isilon customer has two 5-node clusters; one for production and one for disaster recovery (DR). The customer's workflows are replicated to the DR cluster through SyncIQ on individual schedules. They shutdown their production cluster for a scheduled DR test, failed over to the DR cluster, and continue their DR testing.

  Assume both clusters have identical shares, exports, and user authentication and that the client applications have been stopped and the DNS re-pointed. What is the correct method to continue production operations?

  A. Revert the SyncIQ Policy
  B. Initiate Manual Failback of the SyncIQ Policy
  C. Initiate Automated Failback of the SyncIQ Policy
  D. No change to the SyncIQ Policy
  A. Revert the SyncIQ Policy

• Question 148:

  Refer to the exhibit.

  

  You want to add redundancy to your network configuration, rather than performance. You have configured all interfaces into the default SmartConnect zone. How should you configure the switches and Isilon networking to provide your desired network redundancy?

  A. Configure the switch ports for LACP and use LACP aggregation for subnet0:pool0.
  B. Configure the switch ports as access points and use LACP aggregation for subnet0:pool0.
  C. Configure the switch ports for LACP and use FEC aggregation for subnet0:pool0.
  D. Configure the switch ports as access points, bond ext-0 and ext-1 on all nodes and use Active/Passive aggregation for subnet0:pool0.
  A. Configure the switch ports for LACP and use LACP aggregation for subnet0:pool0.

• Question 149:

  An Isilon has 3 NL410 nodes with 36 2 TB HDDs each. VHS is specified as 3 virtual drives or 15 percent of the node pool. Which configuration would be used as reserved space for VHS?

  A. 15% of the total space in the node pool
  B. 3 virtual drives for each node in the cluster
  C. 15% in the node pool plus 3 virtual drives
  D. 3 virtual drives in the cluster
  A. 15% of the total space in the node pool

• Question 150:

  You have 1000 users for an application that reads and writes files averaging between one and four MB in size. Each user requires 24 MB of RAM. You want to add another 1000 users for this application, and in preparation for them, you run the isi statistics command. You discover that the average CPU utilization is 20%; aggregate throughput averages 700 MB/s and the disk QueueD average is 1.5. Your cluster currently has five X200 (12 GB RAM, 1 TB drive) nodes, uses N +2:1 protection and 1 GigE networking.

  What should you do to accommodate the next 1000 users?

  A. Add five additional X200 (12 GB, 1 TB drive) nodes
  B. Upgrade each X200 node to a total of 24 GB of RAM.
  C. Upgrade two of the 1 GigE NICs to 10 GigE on each node.
  D. Add five A100 (24 GB RAM) accelerator nodes.
  A. Add five additional X200 (12 GB, 1 TB drive) nodes