EMC E20-807 Online Practice Questions and Exam Preparation

EMC E20-807 Online Questions & Answers

• Question 51:

  What is a characteristic of sequential read I/Os on a VMAX3 array?

  A. Prefetch task will stop when sequential I/O stops
  B. Higher priority than the host I/O
  C. DA will start the prefetch task
  D. tracks are red into cache by the frontend director
  C. DA will start the prefetch task

• Question 52:

  An organization plans to implement a VMAX3 solution using a two tier configuration. They are sensitive to data loss. the array will include:

  10 x Flash drives 144 x 10k drives Based on Dell EMC recommended best practices, how should the 10K drives be configured?

  A. 1 group RAID 6 (14+2)
  B. 2 groups RAID 6 (6+2)
  C. 2 groups RAID 5 (7+1)
  D. 4 groups RAID 5 (3+1)
  B. 2 groups RAID 6 (6+2)

• Question 53:

  Which feature does the embedded eDPM server support on a VMAX3?

  A. eNAS
  B. FAST.X
  C. D@RE
  D. ESRS
  C. D@RE

• Question 54:

  Based on business requirements, Concurrent SRDF/Star has been implemented with host infrastructure at the Workload and Asynchronous sites. A disaster fault has occurred. Star query shows:

  

  Which site should the workload be moved to and which site's data should be kept?

  A. Switch to the Synchronous site Keep the Synchronous site data
  B. Switch to the Asynchronous site Keep the Asynchronous site data
  C. Switch to the Synchronous site Keep the Asynchronous site data
  D. Switch to the Asynchronous site Keep the Synchronous site data
  D. Switch to the Asynchronous site Keep the Synchronous site data

• Question 55:

  Refer to the Exhibit.

  

  Migration of data from a VMAX to a VMAX All Flash array is planned. the target array has been installed and RDF connectivity between the two arrays has been established. In addition, the application host is accessing data on the source array.

  What is the result when the Non-Disruptive Migration Setup operation is performed?

  A. Creates RDF pairs and places them in pass-through mode
  B. Replicates the storage configuration from the source to the target array
  C. Creates an empty Dynamic RDF group on the source and target arrays
  D. Zones the application host initiators to the target array
  C. Creates an empty Dynamic RDF group on the source and target arrays

• Question 56:

  While analyzing performance of a VMAX3 array, the following details are observed?

  High host response time Low FE response time High host CPU utilization

  What should be investigated further?

  A. SAN connectivity
  B. Disk delays
  C. I/O queuing on the host
  D. I/O queuing on the frontend
  C. I/O queuing on the host

• Question 57:

  SRDF/Metro has been deployed between two data centers. SRDF/Metro is operating normally. Maintenance tasks at the R1 data center require the array to be offline. Which SRDF operation should be executed on the Metro RDF pairs to facilitate the planned outage without affecting application I/O?

  A. Failover
  B. Split with bias set to R2
  C. Suspend with bias set to R2
  D. Swap
  A. Failover

• Question 58:

  Which role does the Unisphere for VMAX initial setup user have after the creation of a new user with the "Admin" role?

  A. SecurityAdmin
  B. None
  C. Admin
  D. Auditor
  B. None

• Question 59:

  SRDF/Metro has been deployed in a non-Witness configuration. Each data center has one VMAX3 array. What is the SRDF pair state under normal operating conditions?

  A. Consistent
  B. Synchronized
  C. ActiveActive
  D. ActiveBias
  A. Consistent

• Question 60:

  A server is hosting an online application and is experiencing performance issues. Which component of the architectural layer has the lowest probability of impacting performance?

  A. Operating System
  B. Server
  C. Application
  D. Disk
  A. Operating System