EMC E20-807 Online Practice Questions and Exam Preparation

EMC E20-807 Online Questions & Answers

• Question 61:

  With a response time of 2 ms, the utilization is at 50%. Based on Little's Law, what is the new service time if the utilization increases to 80%?

  A. 1ms
  B. 2 ms
  C. 4 ms
  D. 5 ms
  D. 5 ms

• Question 62:

  If an XtremIO external tier is placed in its own Storage Resource Pool, which SLO is associated with the external tier?

  A. Platinum
  B. Silver
  C. Gold
  D. Optimized
  D. Optimized

• Question 63:

  What is in accurate statement about Unisphere for VMAX and Solutions Enabler permission management?

  A. Authorization checking is disabled by default for Unisphere and Solutions Enabler and must be enabled before configuring permissions
  B. Solutions Enabler can assign up to four roles per user and Unisphere can only assign up to two roles per user
  C. Unisphere and Solutions Enabler permission information is maintained in separate symauth databases
  D. Unisphere has a more explicit authentication mechanism for users while Solutions Enabler uses the operating system user credentials
  C. Unisphere and Solutions Enabler permission information is maintained in separate symauth databases

• Question 64:

  Which parameter values will result in a Static Cache Partition in a VMAX All Flash array?

  A. Min=30%, Target=30%, Max=30%
  B. Min=30%, Target=30%, Max=80%
  C. Min=30%, Target=60%, Max=60%
  D. Min=30%, Target=60%, Max=80%
  C. Min=30%, Target=60%, Max=60%

• Question 65:

  On a VMAX3 array, under which type of workload will Selective Cache Mirroring provide significant performance optimization?

  A. Large block Write Miss I/Os
  B. Small block Write Hit I/Os
  C. Large block Read Miss I/Os
  D. Large block Read Hit I/Os
  A. Large block Write Miss I/Os

• Question 66:

  Concurrent SRDF/Star has been implemented and Star protection has been enabled. The storage administrator wants to perform a planned switch of the workload to the Synchronous site. Which actions should the administrator perform before the switch?

  A. halt Star and then Disconnect both target sites
  B. Stop application I/O at the Workload site and then Halt Star
  C. Stop application I/O at the Workload site and then Disable Star
  D. Disable Star and then Halt Star
  B. Stop application I/O at the Workload site and then Halt Star

• Question 67:

  A company has two VMAX3 arrays located 100 km apart. The arrays are configured with SRDF/S over Fibre Channel. Which Dell EMC technology will improve FC replication between sites?

  A. Fast Write
  B. Deduplication
  C. SiRT
  D. Write Acceleration
  B. Deduplication

• Question 68:

  Refer to the Exhibit.

  

  Cascaded SRDF has been deployed on VMAX3 has been deployed on VMAX3 arrays. The SRDF mode has been set to Asynchronous between Sites A and B. Which SRDF mode is permitted between Sites B and C?

  A. Adaptive Copy Write Pending
  B. Synchronous
  C. Adaptive Copy Disk
  D. Asynchronous
  C. Adaptive Copy Disk

• Question 69:

  Based on the Array Utilization Dashboard shown in the exhibit, a frontend port is showing higher utilization on Director 1. How can this situation be corrected?

  

  A. Add another engine to provide for Frontend Emulation CPUs
  B. Redistribute the workload onto other available ports
  C. Increase cache on the engine
  D. Add additional capacity to support the frontend workload
  B. Redistribute the workload onto other available ports

• Question 70:

  Which special considerations are required for non-ALUA arrays and FAST.X?

  A. Non-ALUA Controllers are not supported
  B. Remote Controllers can only be connected to a single port on the VMAX3 array
  C. Remote Controllers must be zoned to ports on different directors
  D. Remote Controllers must be zoned to ports on a single director
  B. Remote Controllers can only be connected to a single port on the VMAX3 array