EMC EMC Certifications DES-1D12 Questions & Answers

• Question 121:

  The last two drive slots in a Dell EMC PowerStore 3000 are reserved for which type of drive?

  A. SAS SSD

  B. NVMe NVRAM

  C. NVMe SSD

  D. NVMe SCM

  Correct Answer: B

  Reference: https://volumes.blog/2020/05/05/whats-is-powerstore-part-2-hardware/#:~:text=On%20the%20PowerStore%201000%20and,(2)%20NVMe%20NVRAM%20devices.andtext=PowerStore%20supports%20four%20types%20of,in% 20specific%20locations%20and%20enclosures

• Question 122:

  A Dell Unity XT 480F system ships with two embedded modules, one for each SP What does the embedded module provide?

  A. A Fiber Channel connectivity

  B. Field service only

  C. CNA connectivity

  D. Management

  Correct Answer: D

  The embedded module in a Dell Unity XT 480F system provides management functionality for the system, such as control of the storage array, monitoring of system health and performance, and management of storage resources. This embedded module allows you to manage the system through an intuitive web-based interface or via command-line interface.

• Question 123:

  Which describes the Dell Unity XT MetroSync replication topology?

  A. A source block resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to Site C

  B. A source file resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C

  C. A source file resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to SiteC

  D. A source block resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C

  Correct Answer: C

  Dell Unity XT MetroSync replication topology is a multi-site replication solution that allows you to replicate data synchronously between two or more Unity XT systems. In this topology, a source file resource is replicated synchronously from Site A to Site B, and also replicated synchronously from Site A to Site C. This means that data is written to the primary site and immediately replicated to the secondary site, ensuring that both sites have an exact copy of the data at all times. This type of topology is useful in cases where data loss is not acceptable and a zero RPO is needed. This topology ensures that the data is fully protected and that the environment is highly available, as in case of a primary site failure, the secondary site can take over.

• Question 124:

  A Dell PowerStore 9000X came online after being initially configured seven days ago. The manager Ul shows capacity but no forecasting metrics

  Why are forecasting metrics not being displayed?

  A. Forecasting was not turned on during configuration

  B. The capacity forecasting license must be installed

  C. There is not enough capacity in the appliance

  D. Forecasting will not display until 16 days after initial configuration

  Correct Answer: B

  Capacity forecasting requires the installation of a special license to display capacity forecasting metrics. If the license is not installed, then the forecasting metrics will not be displayed.

• Question 125:

  A Dell PowerStore administrator has been asked to create a NAS file sharing environment for several clients. The clients will be running either Linux (NFS) or Windows (SMB) and must have access to the same data simultaneously How can this be achieved using Dell PowerStore?

  A. Configure two NAS servers place all Linux data in one and all Windows data in the other

  B. Configure a snapshot rule and protection policy and apply it to the file system

  C. Configure multiprotocol access to required file system

  D. Configure file data to be replicated for access by different client types

  Correct Answer: C

  Dell PowerStore allows you to create a NAS file sharing environment for several clients by configuring multiprotocol access to the required file system. This means that the same file system can be accessed by both Linux and Windows clients using either the NFS or SMB protocols. This can be achieved by creating a file system, and configuring it to allow access using both the NFS and SMB protocols. Once the file system is set up, you can assign permissions and share the file system with the appropriate clients. This way, the clients will be able to access the same data simultaneously, regardless of whether they are running Linux or Windows and which protocol they are using. It's not necessary to replicate data for access by different client types, it would be an extra step that would consume more resources and would be unnecessary

• Question 126:

  Which are benefits of choosing the highest capacity flash drives when designing a Dell Unity XT All-Flash system?

  A. Enhances data security and system boot time

  B. Lowers physical space power and cooling requirements

  C. Decreases ware-leveling, performance and redundancy requirements

  D. Reduces maintenance and rebuild time

  Correct Answer: B

  Choosing the highest capacity flash drives when designing a Dell Unity XT All-Flash system can provide several benefits, including lower physical space, power and cooling requirements. Additionally, higher capacity drives can also improve system boot time, reduce maintenance and rebuild time, and decrease wear-leveling, performance, and redundancy requirements.

• Question 127:

  A customer has invested much time using the Dell PS Series Host Integration Toolkit (HIT) to integrate SAN snapshot protection with Microsoft SQL Server native snapshot technology. The customer expresses concern about whether Dell

  EMC SC Series cross-platform replication supports that capability.

  What should be your response?

  A. Recreate integration on the SC Series array and use only SC-to-SC replication for those volumes.

  B. Leverage the integration investment and use only PS-to-PS replication on those volumes.

  C. Cross-platform replication works with SC Series HIT integrations.

  D. Cross-platform replication works with PS Series HIT integrations.

  Correct Answer: B

• Question 128:

  A Dell PowerStore protection policy contains two snapshot rules and one replication rule Which storage resources will run only the snapshot rules?

  A. Virtual Machines and File Servers

  B. Volumes and Volume Groups

  C. Virtual Machines and File Systems

  D. Volume Groups and File Systems

  Correct Answer: B

  A Dell PowerStore protection policy contains two snapshot rules and one replication rule, and it applies to specific storage resources such as volumes and volume groups. These resources will run only the snapshot rules, not the replication rule. A snapshot rule allows you to create point-in-time copies of the data, which can be used to recover data in case of data loss or corruption. Snapshot rules are applied to specific volumes or volume groups, and only these resources will be backed up with the snapshot. A replication rule allows you to replicate data to a remote site for disaster recovery or data protection. Replication rules are applied to different resources such as Virtual Machines, File Servers, File Systems, etc. In this case, the snapshot rules will be applied to Volumes and Volume Groups, and the replication rule will be applied to other resources such as Virtual Machines, File Servers, File Systems.

• Question 129:

  Which describes cascade replication on a Dell Unity XT?

  A. Synchronous replication of a file resource from Sites A to B. then B to C then C to D

  B. Asynchronous replication of a block resource from Sites A to B then B to C then C to D

  C. Synchronous replication of a block resource from Sites A to B. then B to C. then C to D

  D. Asynchronous replication of a file resource from Sites A to B then B to C. then C to D

  Correct Answer: D

  Cascade replication refers to the replication of data from one site to another, in a sequential or cascading manner. In the case of Dell Unity XT, cascade replication refers to the asynchronous replication of a file resource from one site (site A) to another (site B), then from site B to another site (site C) and so on. This means that data is replicated from one site to another in an orderly fashion, and each site functions as both a source and a target for replication. This allows for multiple copies of the data to be kept in different locations, providing increased data availability and disaster recovery capabilities. It's important to note that cascade replication can also be used for block resources but is usually asynchronous.

• Question 130:

  How should Dell Unity XT storage pools be configured to minimize the chance of running out of space due to snapshot utilization?

  A. Set high and low watermarks to remove old snapshots

  B. Set retention to a particular date and time

  C. Change the number of days in the local retention policy

  D. Change the frequency period on the snapshot schedule

  Correct Answer: A

  Dell Unity XT storage pools can be configured to minimize the chance of running out of space due to snapshot utilization by setting high and low watermarks to remove old snapshots. A high watermark is set to specify the maximum amount of space that can be consumed by snapshots before the oldest snapshots are automatically removed. This is a good way to ensure that snapshots do not consume all available space, and helps to prevent the pool from running out of space.