EMC EMC Certifications DES-6321 Questions & Answers

• Question 121:

  During a VxRail deployment validation check it is discovered that the Top of Rack (ToR) switches have Spanning Tree Protocol enabled. What should be done before the implementation can proceed?

  A. Confirm that ToR switchports connected to VxRail nodes are configured to get into "forwarding" mode quickly.

  B. Confirm that ToR switch ports connected to VxRail nodes have fabric-trunk enabled.

  C. Disable STP on the ToR switches

  D. Confirm that isolated VLANs exist on the ToRswitches for each of the VxRail networks.

  Correct Answer: A

• Question 122:

  When preparing for a VxRail deployment, which components require forward and reserve DNS records?

  A. ESXi hosts, vRealize Log Insight, and Platform Services Controller

  B. Platform Services Controller. vCenter, and ESRS/VE

  C. ESXi hosts, vCenter, and vRealize Operations

  D. ESXi Hosts, vCenter, and ESRS/VE

  Correct Answer: A

  https://www.emc.com/collateral/guide/vxrail-quickstart-guide.pdf

• Question 123:

  What is a characteristic of vSAN Erasure Coding?

  A. Used for Garbage Collectionon all-flash VxRail clusters

  B. Is a DoD certified individual drive cleaning tool to facilitate drive replacement

  C. Used to securely erase vSAN storage to facilitate node replacement

  D. Is a Raid 5/6-like storage policy

  Correct Answer: D

  https://blogs.vmware.com/virtualblocks/2016/02/12/the-use-of-erasure-coding-in- virtual-san-6-2/

• Question 124:

  View the Exhibit.

  

  Based on the exhibit, which interfaces should be used to reset the node through the Mobile Build Server?

  A. 1 and 3

  B. 1 and 2

  C. 2 and 3

  D. 1, 2 and 3

  Correct Answer: A

• Question 125:

  What accurately describes VxRail scale-out rules?

  A. Only the first 3 cluster nodes must be identical

  B. Mixing hybrid and all-flash nodes is permitted when scaling greater than 32nodes with an RPQ

  C. All G series models in a cluster must be identical

  D. Only the first 4 cluster nodes must be identical

  Correct Answer: C

  http://www.snsltd.co.uk/Presentations/Dell_EMC_VxRail_Overview.pptx

• Question 126:

  A company has a simple, 3 node VxRail cluster. The VxRail is running version 3.5 and utilizes a vSphere Enterprise Plus license. The company has asked for a VxRail software upgrade. What are the steps for the upgrade?

  A. Log in to VxRail Manager, select "Internet Upgrade", then follow the prompts.

  B. Log in to support.emc.com and download the upgrade packages.Next, open VxRail Manager, select "Off-line Upgrade", then follow the prompts.

  C. Contact Dell EMC support to request the upgrade to the VxRail cluster.

  D. Placeall four nodes into maintenance mode.Next, log in to VxRail Manager, select "Internet Upgrade", then follow the prompts.

  Correct Answer: A

  https://wuchikin.wordpress.com/2017/03/25/demo-upgrade-to-vxrail-4-0/

• Question 127:

  What is the recommended way to power up VxRail E, V, P, and S Series nodes?

  A. Ensure the System Health indicatorblinks amber for 10 minutes after power on

  B. Use the power button on the rear panel to power on each node

  C. Wait at least 30 seconds between powering up each node

  D. Use the iDRAC interface to power on each node

  Correct Answer: A

• Question 128:

  During VxRail initial deployment the build fails. Support requests that logs be downloaded manually. Which logs should be collected?

  A. /var/log/vmware-installer

  B. All files and folders under /var/log/vmware

  C. /var/log/vmware/marvin/tomcat/logs/marvin.log only

  D. /var/log/mystic/web.log

  Correct Answer: D

  https://www.google.com/url?sa=tandrct=jandq=andesrc=sandsource=webandcd=1andcad=rja anduact=8andved=0ahUKEwjA7rnpv9LWAhUkB8AKHQaxAXkQFggsMAAandurl=https%3A%2F %2Fcommunity.emc.com%2Fthread% 2F237521andusg=AOvVaw2X3ZW_W6B6mmZpNdm3 aaMf

• Question 129:

  A company has indicated that they do not want to change the native VLAN for their entire switch. Based on best practice, how should the Top of Rack (ToR) switch be configured?

  A. Set the native VLAN on the switch ISL ports

  B. The native VLAN for the switch must be set

  C. Set the native VLAN only at the VxRail trunk ports

  D. Do not configure ToR switch native VLAN and instead tag the VLAN on VxRail

  Correct Answer: A

• Question 130:

  During the deployment of VxRail, you import a JSON file and attempt a validation. An error indicates that node 1 cannot access the other nodes. When you look at the Nexus switchport configuration, you see the following on all VxRail ports: interface TenGigabitEthernet 1/x

  switchport

  switchport trunk switchport trunk allow vlan all What is a possible reason for this situation?

  A. "switchport trunk native vlan x" is notconfigured

  B. "switchport access vlan x" is not configured

  C. "switchport trunk vlan x" is not configured

  D. "switchport vlan x" is not configured

  Correct Answer: B