VNX Solutions Specialist Exam for Implementation Engineers v9.0 (E20-390)

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Total 411 questions

What is the length of RSA keys used to encrypt and decrypt network traffic in a VNX environment?

  • A. 2048 bytes
  • B. 1024 bits
  • C. 1024 bytes
  • D. 2048 bits


Answer : D

If a source LUN is trespassed, what happens to a fractured clone LUN?

  • A. Neither the clone LUN nor the fracture logs will be acquired by the peer SP
  • B. The peer SP acquires the fracture logs.
  • C. The peer SP acquires both the clone LUN and the fracture logs.
  • D. The peer SP acquires the clone LUN.


Answer : A

What is the location of the host agent configuration file on a Linux host?

  • A. /etc/Unisphere/bin/agent config
  • B. /sbin/Unisphere/agent.config
  • C. /etc/init.d/agent.config
  • D. /etc/Unisphere/agent.config


Answer : D

Which operating system supports LUN shrink?

  • A. Windows Server 2003
  • B. Windows Server 2008
  • C. Linux
  • D. VMware ESX Server


Answer : B

When provisioning a new logical unit, which RAID group property is the basis for limiting the LUN capacity that can be specified?

  • A. Largest contiguous free space
  • B. Total formatted capacity
  • C. Largest user capacity
  • D. Total raw capacity


Answer : A

At which RAID level are FAST Cache drives configured for VNX arrays?

  • A. RAID 0
  • B. RAID 1
  • C. RAID 3
  • D. RAID 5


Answer : B

Explanation:
The FAST Cache consists of one or more pairs of mirrored disks (RAID 1) and provides both read and write caching. For a read caching, the FAST Cache copies data off the disks being accessed into the FAST Cache.
For protected-write applications, the FAST Cache effectively buffers the data waiting to be written to disk.

What is the preferred method for partition VNX FC LUNs attached to a Windows Server
2008 R2 host?

  • A. Disk Management
  • B. fdisk
  • C. vtoc
  • D. format


Answer : A

According to EMC best practices, how many Primary Usermappers are recommended in a multiple VNX array environment?

  • A. One per VNX frame
  • B. One per Data Mover
  • C. One per VNX environment
  • D. One per CIFS server


Answer : C

The preferred path to your VMware ESX host failed. Which native multi-pathing policy will revert to the preferred path when it is restored?

  • A. Fixed only
  • B. MRU only
  • C. Round-robin
  • D. Bath Fixed and MRU


Answer : A

Explanation:
Native ESX/ESXi Multipath is managed via the configuration of a failover policy. Policy options are:
MRU (Most Recently Used) uses last active path, and does not fail back when a path is restored
Fixed (Preferred path) reverts back to preferred path when it is restored to service
Round Robin rotates the path selection between all available paths and enables basic load balancing across the paths.
This algorithm is not adaptive, so it will flip from one channel to the other with no regard for the work load unlike PowerPath, nor is it responsive to queue depth.
NotE. Prior to vSphere, there was no way to load balance a LUN indigenously and customers needed to statically distribute LUNs across paths.

By default, what do you have to install on an ESX 4.x host to auto register with a VNX for

Block storage system -

  • A. Only Navisphere Secure CLI on the ESX host
  • B. Both Unisphere Host Agent and Navisphere CLI on the ESX host
  • C. Only Unisphere Host Agent on the ESX host
  • D. Nothing; the host will automatically register with the VNX storage system


Answer : D

What is the maximum number of LDAP service connections available when configuring
LDAP for VNX Block storage system?

  • A. 1
  • B. 2
  • C. 4
  • D. 8


Answer : B

What are the severity levels available with Unisphere event notifications?

  • A. Critical and Informational
  • B. High and Low
  • C. Critical and Low
  • D. High and Warning


Answer : A

Which VNX feature is used to reclaim unused storage space?

  • A. LUN migration
  • B. LUN shrink
  • C. Thin provisioning
  • D. RAID group defragment


Answer : B

Which Unisphere wizard can automatically allocate all available disk storage and present it as private LUNs?

  • A. Disk Provisioning Wizard for File
  • B. Celerra Setup Wizard
  • C. Backend Bus Reset Wizard
  • D. File System Wizard


Answer : A

Which tool is used to complete the initialization of only a VNX System for Block?

  • A. Unisphere Storage System Initialization Wizard
  • B. VNX Installation Assistant
  • C. Unisphere Server Utility
  • D. Unisphere Service Manager


Answer : A

Explanation:
Vnx installation assistant is used for the vnx unified (block and file)

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Total 411 questions