Dell Dell Certifications DES-1721 Questions & Answers

• Question 71:

  Which best practices should be followed when using iSCSI to connect SC Series arrays and hosts?

  A. Use dedicated switches for iSCSI. Two separate VLANS for multipathed iSCSI using separate IP subnets. Gigabit full duplex between Storage Center and all local servers.

  B. Use separate IP subnets for multipathed iSCSI separated by VLANS when using the same switch. Gigabit full duplex between Storage Center and all local servers

  C. Use separate switches for iSCSI. Two separate VLANs for multipathed iSCSI using separate IP subnets. Unicast and multicast storm control enabled on all iSCSI switches.

  D. Use separate VLANs for multipathed iSCSI using separate IP subnets when using the same switch. Bi-directional flow control disabled between Storage Center and servers.

  Correct Answer: D

• Question 72:

  A file server using an SC7020 storage array was impacted by ransomware in the morning and a majority of the files need to be recovered. The backup from the previous night did not run. Is there anything that can be done on the SC7020 array to help recover these files?

  A. Yes, if there is a snapshot from before the ransomware on the volume(s) were impacted. Volume(s) can be rolled back to this snapshot.

  B. Nothing can be done on the SC7020 to assist with this recovery.

  C. Yes, if there is a snapshot from before the ransomware on the volume(s) were impacted. A Replay can be created from this snapshot and the files recovered.

  D. Yes, if there is a snapshot from before the ransomware on the volume(s) were impacted. A View volume can be created from this snapshot and the files recovered.

  Correct Answer: A

• Question 73:

  Refer to the Exhibit.

  

  You are testing failover from a host perspective. The host has been configured in a "Failover Only MPIO" configuration. When running IOmeter if the Data Path 2 cable from the host is disconnected, will the host survive the failover?

  A. No; Failover MPIO is configured for only Data Path 1

  B. No; IOmeter is sending I/O only on one path

  C. Yes; the server has Data Path 1 connected to both controllers

  D. Yes; Failover MPIO should failover

  Correct Answer: D

• Question 74:

  Which feature is included on SC9000 storage arrays?

  A. SED/FIPS Secure Data

  B. Data Reduction

  C. Data Progression

  D. Asynchronous Replication

  Correct Answer: C

  Reference: https://www.dell.com/en-us/work/shop/povw/storage-sc9000

• Question 75:

  A customer has two production sites with one storage administrator at each site. The customer wants to replicate data between their SC9000 storage arrays. Each administrator uses a workstation with the Dell Storage Manager Client to manage their respective system. Now, the CEO wants data replicated between both sites.

  What is the first step to configure replication between sites?

  A. Configure an iSCSI network over WAN

  B. Install Dell Storage Manager Data Collector

  C. Create a QoS node in Dell Storage Manager Client

  D. Initially sync data with USB hard drives

  Correct Answer: B

• Question 76:

  You just installed two SC7020 storage arrays with plans to bring them into production shortly. What is recommended for deploying the Dell Storage Manager (DSM) Data Collector?

  A. Install and use the DSM Virtual Appliance

  B. Use the embedded database

  C. Dedicate 2 GB of RAM to the Data Collector

  D. Use an external SQL database

  Correct Answer: D

• Question 77:

  Based on the exhibit, a customer is using a Virtual Port Mode configuration. If the cable for Domain 1 on Controller 1 is disconnected during failover testing, will the SC Series array port failover work?

  

  A. No, the configuration contains only a single port per domain and will not provide port failover.

  B. Yes, the configuration will provide port failover as the system is configured for Virtual Port Mode.

  C. No, port failover only works in Legacy Port Mode.

  D. Yes, the configuration will provide port failover regardless of domains or mode.

  Correct Answer: B

• Question 78:

  How many SC220 enclosures can be supported by an SC4020 storage array?

  A. 7

  B. 9

  C. 14

  D. 15

  Correct Answer: A

  Reference https://usermanual.wiki/Dell/dellcompellentsc4020.2121632308.pdf

• Question 79:

  Where are Dell Storage Manager (DSM) automated reports stored for later access?

  A. DSM database

  B. DSM file system

  C. First created volume

  D. External document management system

  Correct Answer: B

• Question 80:

  Which utility is used to discover and configure an uninitialized SCv2000 array?

  A. Remote Client

  B. DSM Client

  C. PuTTy

  D. DSM Collector

  Correct Answer: B