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DELL EMC D-MSS-DS-23 28% OFF Automatically For You Dell Midrange Storage Solutions Design 2023
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1.Which Dell PowerStore supported media devices carry a FIPS Type D certification? A. NVMe SCM, NVMe SSD, and SAS SSD B. SAS HDD, NVMe SSD NVMe SCM, and SAS SSD C. SAS SCM, NVMe SSD and NVRAM D. SAS SSD, NVMe SSD NVMe SCM, and NVRAM Answer: A Explanation: The Dell PowerStore supports a variety of media devices, including NVMe SCM, NVMe SSD, SAS SSD, SAS HDD, and NVRAM. Of these, NVMe SCM, NVMe SSD, and SAS SSD carry a FIPS Type D certification. This certification is a Federal Information Processing Standards (FIPS) certification that indicates that the device has passed a set of security standards established by the US government for use in sensitive, but unclassified data.
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2.Which SAS SSDs are supported by Dell EMC PowerStore? A. 960 GB, 1920 GB, 3840 GB, and 7680 GB B. 960 GB, 1920 GB, and 3840 GB only C. 1920 GB, 3840 GB, 7680 GB, and 15360 GB D. 1920 GB, 3840 GB, and 7680 GB only Answer: C Explanation:
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3.4.4 SAS SSD Reference: https://www.delltechnologies.com/asset/en-us/products/storage/industrymarket/h18149-dell-emc-powerstore-platform-introduction.pdf
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4.How many PCI-E lanes are provided for Slot 0 and Slot 1 in Dell EMC Unity XT arrays? A. 8 for Slot 0; 8 for Slot 1 B. 16 for Slot 0; 16 for Slot 1 C. 8 for Slot 0; 16 for Slot 1 D. 16 for Slot 0; 8 for Slot 1 Answer: D Explanation: Reference: https://www.delltechnologies.com/en-gb/collaterals/unauth/technicalguides-support-information/products/storage/docu94617.pdf
5.A customer has a Dell Unity XT 380F system with a single pool that is built from 24x 800 GB and 24x 1 6 TB SAS Rash 3 drives and 14x 400 SAS Flash 2 drives. How many drive partnership groups were used to build the dynamic pool?
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A. 3 B. 1 C. 2 D. 4 Answer: B Explanation: In Dell Unity XT storage systems, a dynamic pool is built using drive partnership groups. A drive partnership group is a group of drives that are combined to create a pool. A drive partnership group can be made up of SAS, NL-SAS, or Flash drives. In this case, the customer has a single pool built from 24x 800 GB SAS Rash 3 drives and 24x 1 6 TB SAS Rash 3 drives, and 14x 400 SAS Flash 2 drives. All drives are SAS type, and it's only one partnership group.
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6.From which storage platforms does a migration import data to a Dell PowerStore cluster? A. Dell EqualLogic PS series Unity, Dell Compellent SC Series, and PowerVault ME B. PowerMax. Dell EqualLogic PS senes Dell Compellent SC Series and Unity C. VNXe Unity Dell Compellent SC Series and Dell EqualLogic PS series D. Unity VNX2 Dell EqualLogic PS series and Dell Compellent SC Series Answer: D Explanation: A migration import allows data to be transferred from an existing storage platform to a Dell PowerStore cluster. The platforms that support migration import to a Dell PowerStore cluster include Unity, VNX2, Dell EqualLogic PS series and Dell Compellent SC Series. These platforms are EMC storage systems, which are now owned by Dell Technologies.
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7.A customer wants to expand their Dell EMC Unity Hybrid system, which includes a pool of 64 drives in a RAID 5 (4+1) configuration. What is the minimum number of drives needed to expand the pool? A. 1 B. 5 C. 6 D. 7 Answer: C Explanation: DELL PDF document about dynamic pools: h16289-dell_emc_unitydynamic_pools.pdf Page 20-21. The smallest RAID 5 stripe width the system supports is a 4+1. The smallest dynamic pool created with the RAID 5 4+1 configuration is 6 drives. The minimum drive count includes the number of drives specified in the stripe width, plus the hot spare capacity. The hot spare capacity is
selected by the user at pool creation, and can either be set to 1 or 2 drives for every 32 drives in the pool.
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8.Which onboard Dell PowerStore components does the LCC interface sit between? A. HDD drives and CPU board B. SCM drives and PCIe C. SCM drives and SCSI drives D. CPU board and NVMe drives Answer: D Explanation: The LCC interface sits between the CPU board and the NVMe drives onboard Dell PowerStore components. The LCC interface is responsible for controlling the PCIe links between the CPU board and NVMe drives and allows for communication between the two. It also provides additional features such as error correction and power management for the NVMe drives.
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9.A customer has a Dell EMC Unity 680F array with a single pool consisting of 10 drives configured with RAID 5 (4+1). What is the minimum number of drives required to expand the pool? A. 1 B. 5 C. 6 D. 7 Answer: A
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10.A storage administrator plans to complete a technology refresh from a Dell EqualLogic PS6100 to a Dell EMC PowerStore array. The affected hosts are running native MPIO. What is the recommended method to support an import to PowerStore? A. Install DSITV on the hosts B. Install EQL Hit Kit on the hosts C. Use Dell Storage Manager and select Online Import D. Install PowerStore ImportKit on the hosts Answer: D Explanation: An install of the PowerStore ImportKIT is required on the hosts to support import to PowerStore. Reference: https://docplayer.net/188347142-Dell-emc-powerstore-importing-externalstorage-to-powerstore-guide.html
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11.To which bus is the Dell EMC Unity 880F DPE connected? A. 0 B. 49 C. 89 D. 99 Answer: D Explanation: The DPE on 480/F, 680/F, and 880/F systems is internally connected to Bus 99 which is a separate bus than the first SAS expansion port that is connected to Bus 0. Therefore, the DPE is recognized by the system as Bus 99 Enclosure 0 while the first DAE connected to the first SAS expansion port would be Bus 0 Enclosure 0. This is different than X00/F, X50F, and 380/F systems. Furthermore, this means that the twenty-five drives in front of the DPE for 480/F, 680/F, and 880/F systems are internally recognized as Bus 99 Enclosure 0 Drive 0 C Bus 99 Enclosure 0 Drive 24. In Unisphere, the drives are seen DPE Drive 0 CDPE Drive 24
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12.What is the minimum recommended amount of Flash capacity in a Dell EMC Unity 480 Hybrid pool? A. 5% B. 8% C. 10% D. 15% Answer: A Explanation: The minimum recommended Flash capacity is at least 5% of the pool capacity. Reference: https://www.dell.com/support/kbdoc/en-pk/000010691/dell-emc-unitydifference-between-fast-cache-and-fast-vp-configurations-user-correctable
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13.How many hierarchical snapshots are supported by Dell EMC Unity? A. 32 levels deep for LUNs 16 levels deep for file systems B. 16 levels deep for LUNs 8 levels deep for file systems C. 16 levels deep for LUNs 16 levels deep for file systems D. 10 levels deep for LUNs 10 levels deep for file systems Answer: A
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14.At what granularity are blocks deduplicated on a Dell EMC PowerStore array? A. 4 KB B. 8 KB C. 32 KB D. 64 KB Answer: A Explanation: https://www.delltechnologies.com/resources/en-us/asset/whitepapers/products/storage/h18151-dell-emc-powerstore-data-efficiencies.pdf Deduplication uses algorithms to analyze, perform pattern detection, and attempts to store only a single instance of data. In general deduplication can work at the block, bitlevel, or file level. In PowerStore, deduplication works at the block level at 4 KB granularity.
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15.What is the purpose of the NVMe NVRAM drives in a Dell EMC PowerStore 9000 array? A. Read cache and vaulting B. Read cache and base OS C. Write cache and base OS D. Write cache and vaulting Answer: D Explanation: Reference: https://www.delltechnologies.com/en-us/collaterals/unauth/whitepapers/products/storage/h18149- dell-emc-powerstore-platform-introduction.pdf (12)
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16.A solutions architect must present two different Dell PowerStore options to a customer Both options must contain 90 TB raw in the smallest drive configuration possible A 3000T and a 9000T are the two models requested. The customer wants to know the minimum drive count necessary to perform a capacity upgrade Which solution should be recommended? A. A 6x 15 TB drives in the 3000T and 6x 15 TB drives in the 9000T both requiring upgrades in six drive increments B. 6x 15 TB drives in the 3000T and 12x 7 TB drives in the 9000T both supporting single drive upgrades C. 6x 15 TB drives in the 3000T and 6x 15 TB drives in the 9000T both supporting single drive upgrades D. 12x 7 TB drives in the 3000T and 6x 15 TB drives in the 9000T both requiring upgrades in six drive increments Answer: C Explanation: This option provides the smallest drive configuration possible for both the 3000T and
9000T models, and allows for single drive upgrades, which is more flexible for the customer.
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17.A customer requests a proposal for a new Dell EMC SC Series storage system with the following specifications: ? IO type: Random ? Existing data: 100 TB ? Rate of change: 2 TB per day ? Growth rate: 100 GB per day ? Snapshot retention: 1 week What storage capacity should be specified to scope the system with Tier 1 RAID 10 protection? A. 2.5 TB B. 4.5 TB C. 6.5 TB D. 8.5 TB Answer: B
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18.Which feature helps to enable file service High Availability on Dell EMC PowerStore? A. NAS Network Heartbeat B. RAID protected disk drives C. Multiple redundant network ports with system bond D. Redundant nodes with Live Volume enabled Answer: A Explanation: Reference: https://www.delltechnologies.com/resources/en-us/asset/whitepapers/products/storage/h18157-dell-emc-powerstore-clustering-high-availability.pdf
19.A customer has two Dell S4148FON switches which are not connected to each other. The customer wants to use SMB to present NAS data directly from the array to their users. The solution must have resilience in case a switch outage occurs Which solution should the technical architect recommend? A. Dell PowerStore100X B. Dell PowerVault ME4 C. Dell PowerStore 1000T D. Dell Unity XT 480 Answer: D
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20.A systems administrator has deployed a DellUnity XT 380F with 90x 1.92 TB SSDs in a dynamic pool How many drives are allocated as spare space? A. 0 B. 4 C. 3 D. 2 Answer: B Explanation: The Dell Unity XT 380F has a default spare space allocation of 4% of the total number of drives in a dynamic pool. So with 90x 1.92 TB SSDs, 4 drives will be allocated as spare space. These spare drives are used to automatically replace a failed drive, ensuring data availability and protection.
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21.CORRECT TEXT A customer has two Dell Unity arrays a Dell Unity 550F and a Dell Unity XT 480 They are undergoing a network refresh and would like to modernize to a 25 GbE network. The customer has asked the technical architect about adding 25 GbE network cards to the Unity systems Both systems have free slots Which option should the technical architect recommend? A All Unity and Unity XT systems support 25 GbE. B. The Unity XT 480 supports a 25 GbE card but the Unity 550F does not support a 25 GbE card C. The Unity 550F supports a 25 GbE card but the Unity XT 480 does not support a 25 GbE card D. 25 GbE is not supported on Unity or Unity XT systems Answer: B Explanation: The Unity XT 480 can be upgraded with the 25 GbE network cards, but the Unity 550F will not be able to support them and the customer will have to consider upgrading the Unity 550F to a newer model that supports 25 GbE.
22.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 Answer: D
Explanation: 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.
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23.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 Answer: A Explanation: 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.
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24.DRAG DROP Match each Dell EMC Unity feature with its destination.
Answer: cascade replication: Asynchronous replication NAS Server mobility: move host MetroSync: native synchro Fan-out replication: one to many asynchronous
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25.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. Answer: C
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26.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 Answer: C Explanation: 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
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27.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 Answer: B Explanation: 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.
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28.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 Answer: D
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29.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 Answer: C Explanation: 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.
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30.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 Answer: B Explanation: Reference: https://volumes.blog/2020/05/05/whats-is-powerstorepart-2-hardware/#:~:text=On the PowerStore 1000 and,(2) NVMe NVRAM devices.&text=PowerStore supports four types of,in specific locations and enclosures
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31.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 Answer: D Explanation: 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.
32.What is a feature of Dell EMC Unity unified snapshots? A. Delta set extension B. Copy on First Access C. Redirect on Write D. Copy on First Write Answer: C
Explanation: Reference; https://www.delltechnologies.com/en-ba/collaterals/unauth/whitepapers/products/storage/h15089- dell_emc_unity-snapshots_and_thin_clones.pdf (7)
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33.What are characteristics of D@RE on a Dell EMC Unity array? A. Impacts array only during implementation Has minimal impact on performance B. Does not impact array during implementation Has some impact on performance for a moment C. Impacts array for a moment after implementation Has no impact on performance D. Does not impact array during implementation Has minimal impact on performance Answer: D
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34.A customer site has four NAS servers participating in MetroSync replication. Which Dell EMC Unity feature could reduce failover times? A. QoS Failover Policy B. Cabinet Failover C. SRDF Metro D. Consistency Groups Answer: B
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35.A Dell EMC PowerStore customer plans to migrate storage volumes across appliances within a cluster. They want to use minimal effort to ensure that the appliance avoids reaching full capacity. Which method is recommended? A. Live Migrate B. Assisted Migration C. Resource Balance D. Volume Placement Answer: B Explanation: Assisted migration - In the background, the system periodically monitors storage resource utilization across the appliances. Migration recommendations are generated based on factors such as drive wear, appliance capacity, and health. If you accept a migration recommendation, a migration session gets automatically created. Reference: https://www.dell.com/support/manuals/en-pk/powerstore-1000t/pwrstr-cfgvols/migrate-storage-resources-to-anotherappliance?guid=guid-2c5f6014-60e4-43ee-928f-b537c59da869&lang=en-us
36.A customer is managing a Dell EMC SC7020 array running SCOS 7.2. The array
is running out of capacity. The customer asks you to begin scoping the system for additional drives. What disk drive redundancy rule applies to 3.84 TB SSDs? A. Forced Dual Redundancy B. Default Dual Redundancy C. Default Single Redundancy D. Forced Non-Redundancy Answer: B
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37.What is the minimum RPO that can be configured on a Dell Unity XT blockasynchronous replication session? A. 5 minutes B. 60 minutes C. 1 minute D. 20 minutes Answer: A Explanation: The minimum RPO (Recovery Point Objective) that can be configured on a Dell Unity XT block-asynchronous replication session is 5 minutes. RPO is a measure of how much data can be lost in the event of a disaster, and it's typically measured in minutes. The lower the RPO, the less data can be lost. Block-asynchronous replication is a replication method that copies data blocks, rather than files, between the source and the target. The data is copied at regular intervals, and if a disaster occurs at any point in time, the data on the target will be no more than 5 minutes old. The shorter the RPO, the more frequently data is copied and the less data is at risk of being lost in case of a disaster. It's important to note that this is the minimum RPO for block-asynchronous replication, it can be set to a higher value if needed.
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38.A Windows client using the SMB protocol is trying to access a multiprotocol file system from a Dell Unity XT NAS server. The local group database was checked and no mapping was found. What is the next step in the SID to UID resolution process? A. The Windows user access is removed B. The domain controller is checked C. The Windows user is mapped to the default UNIX account D. Secmap is checked Answer: B Explanation: When a Windows client uses the SMB protocol to access a multiprotocol file system from a Dell Unity XT NAS server, the SID (Security Identifier) of the Windows user is mapped to a UID (User Identifier) on the UNIX file system. If no mapping is found in
the local group database, the domain controller is checked to see if the SID is present there. The domain controller can provide the information needed to map the SID to the corresponding UID on the file system, allowing the Windows user to access the files. If the SID is not present in the domain controller, the Windows user's access would be removed.
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39.What component or feature is provided by both the Dell EMC PowerStore 1000T array and the Dell EMC Unity XT 380 Series array? A. Container Integration B. Configured Block with Hypervisor C. Unified System D. NVMe disks Answer: C Explanation: "When positioning the 380 and 380F, keep in mind that they are not NVMe-ready and will not be upgradeable to support NMVe in the future.".
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40.Which Dell EMC Unity feature provides network high availability with activepassive ports when provisioning File storage for a NAS client? A. Redundant Interfaces B. Preferred Interfaces C. Link Aggregation D. Fail-safe Networking Answer: D Explanation: Document: docu71319_dell-emc-unity-high-availability-a-detailed-review.pdf Page: 20 FAIL SAFE NETWORKING (FSN) Dell EMC Unity OE version 4.2.1 introduces Fail Safe Networking (FSN). FSN is a high availability feature that extends link failover into the network by providing switch-level redundancy. FSN appears as a single link with a single MAC address and potentially multiple IP addresses. FSN can consists of Ethernet ports, link aggregations, or any combination of the two. FSN adds an extra layer of availability to link aggregations alone as link aggregations provide availability in the event of a port failure while FSN provides availability in the event of a switch failure. Each port or Link aggregation is considered as a single connection and only the primary port or link aggregation in an FSN is active at a time. All ports in an FSN must have the same MTU size, but the speed and duplex settings can vary.
41.A customer wants to provision a file system while creating a NAS server in a Dell EMC PowerStore T system.
What information is needed to create the NAS server? A. FQDN B. Subnet C. DNS details D. WWPN Answer: B
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42.Which front-end protocol card in Dell Unity XT 380 offloads processing to save CPU cycles for other operations? A. Fibre Channel B. CNA fonSCSI C. SAS D. CNA for Fibre Channel Answer: B Explanation: (Converged Network Adapter for iSCSI) is the front-end protocol card in Dell Unity XT 380 that offloads processing to save CPU cycles for other operations. It enables the Unity XT 380 to handle iSCSI traffic, which reduces the workload on the host server's CPU and improves overall system performance.
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43.When designing a Dell EMC Unity 480F solution, what is the maximum number of enclosures and drive slots, per bus? A. 10 enclosures and 250 drive slots B. 10 enclosures and 750 drive slots C. 3 enclosures and 240 drive slots D. 10 enclosures and 500 drive slots Answer: A Explanation: Table 3. Dell EMC Unity X80/F Model Comparison Reference: https://www.delltechnologies.com/asset/en-us/products/storage/industrymarket/h17782-dell-emc-unity-xt-introduction-to-the-platform.pdf
44.How are vVol datastores mounted in Dell EMC PowerStore storage during the creation of vVol datastores in the vSphere environment shared by ESXi hosts? A. Volume Groups B. Storage containers C. Storage Groups D. VMFS datastores Answer: B Explanation:
A storage container is used to present vVol storage from a PowerStore cluster to vSphere. vSphere mounts the storage container as a vVol datastore and makes it available for VM storage. When a PowerStore cluster is used to provide VM storage, user VMs should be provisioned on the vVol datastores. The default storage container is mounted automatically on the nodes of the cluster.
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45.A database volume on a Dell PowerStore cluster has a Protection Policy that is applied with a single snapshot rule. The policy takes a snapshot every hour and retains them for 48 hours. The storage administrator must present a copy of the database volume to a test environment Which action does the storage administrator take to meet this requirement? A. Restore the snapshot to a new test volume B. Create a thin clone of the database volume and map it to the test host C. Create a new snapshot policy for the test volume D. Create a snapshot of the database volume and map it to the test host Answer: B Explanation: A thin clone is a writeable copy of a volume, which shares the same data blocks as the parent volume. This allows the administrator to provide a copy of the production database volume to the test environment without affecting the production data. It also allows to test the data without affecting the production data, and also it doesn't require additional storage space.
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46.What is a benefit of restoring data from a Dell EMC Unity snapshot? A. Can select which Consistency Group members have data restored B. Supports replication to up to 32 remote systems C. Enables efficient storage usage with 8 KB block granularity D. Does not require additional pool storage Answer: A
47.What storage resources are affected with a refresh option on a Dell EMC PowerStore array? A. Thin clones and volumes only B. Snapshots, thin clones, and volumes C. Thin clones, volumes, and replicas D. Thin clones and snapshots only Answer: D
48.A technical architect is designing a Dell Unity storage solution. The customer has a
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monthly data access profile where block data is accessed infrequently. The data is accessed frequently for a few days during month-end reporting. Based on best practices which solution should the technical architect recommend? A. A single-tier solution using 10k drives B. An All-Flash solution using FAST VP and FAST Cache C. A hybrid solution using FAST VP and FAST Cache D. A hybrid solution using data progression Answer: C Explanation: Based on the customer's monthly data access profile, where block data is accessed infrequently but frequently during month-end reporting, the technical architect should recommend a hybrid solution using FAST VP and FAST Cache. FAST VP (Fully Automated Storage Tiering for Virtual Pools) is a feature that automatically tiers data across different types of storage media based on access patterns. With FAST VP, frequently accessed data will be automatically moved to faster storage media such as flash, while infrequently accessed data will be moved to slower, less expensive storage media such as disk. FAST Cache is a feature that increases the performance of Unity storage systems by caching frequently accessed data on flash storage. With this hybrid solution, the customer will have the best of both worlds: high-performance flash storage for frequently accessed data, and lower-cost disk storage for infrequently accessed data. This will help the customer to improve performance during month-end reporting and save costs for infrequently accessed data. It's important to note that this design should be evaluated based on the specific requirements, workloads and expected growth of the customer.
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49.What is a benefit of using a performance assessment tool? A. Retrieves workload metrics from all storage systems B. Provides performance statistics in a structured postgres database C. Retrieves the performance archives using the Unity Data Collection D. Provides automated performance statistics in chart and table format Answer: D Explanation: A performance assessment tool is used to evaluate the performance of storage systems and provide statistics that can be used to identify and troubleshoot performance issues. One of the benefits of using a performance assessment tool is that it provides automated performance statistics in chart and table format, making it easy to understand performance metrics and identify any potential issues. This allows the user to quickly identify and address any bottlenecks in the system, and make adjustments to improve performance.
50.What is a characteristic of single-tier Flash on Dell EMC SC Series arrays?
A. Supports both write-intensive and read-intensive SSDs in the same tier B. Snapshot data is kept on Tier1 in RAID 10 to optimize performance C. Read only data is migrated to lower tiers when a snapshot is taken D. Supports either write-intensive or read-intensive SSDs in the same tier Answer: D Explanation: Reference: https://downloads.dell.com/manuals/common/sc-series-performanceavailability-best-practices-dell-emc-4024-bp-sc_en-us.pdf (15)
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51.For Dell EMC SC Series arrays, what is the minimum percentage of total system IOPS that should be applied to Tier 3 drives? A. 15% B. 20% C. 25% D. 100% Answer: B Explanation: "As a standard, tier 3 drives should encompass a minimum of 20% system IOPS potential."
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52.What tabs are available on the Dell EMC PowerStore Manager Dashboard? A. Health. Overview. Performance, and Capacity B. Health, Efficiency. Performance, and Summary C. Performance. Efficiency, and Capacity only D. Performance. Overview, and Capacity only Answer: A Explanation: These categories are divided in tabs: Overview, Capacity, and Performance. Reference: https://volumes.blog/2020/05/07/what-is-powerstore-part-6-powerstoreuser-interface/
53.When implementing FAST VP, which Dell EMC best practices should be followed? A. Use the Start High then Auto Tier policy Maintain at least 15 percent pool capacity B. Use the Auto Tier policy Schedule relocations continually during normal operations C. Use the Start High then Auto Tier policy Maintain at least 10 percent pool capacity D. Use the Start High then Auto Tier policy Maintain at least 5 percent pool capacity
Answer: D Explanation: https://www.dell.com/community/VNX/FAST-VP/td-p/6953079
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54.A storage administrator is deploying a new Dell Unity XT 880F system. The system will be used over FC by several hosts running production databases. The system will also be used over iSCSI to several hosts running tesVdev workloads. The administrator wants to prevent the test/dev hosts from using more than 5000 IOPS What Unity XT feature can be used for this configuration? A. Thin clones B. LUN masking C. Host I/O limits D. FASTVP Answer: C Explanation: Dell Unity XT's Host I/O limits feature allows you to set limits on IOPS for individual hosts connected over iSCSI. This can be used to restrict the test/dev hosts to a maximum of 5000 IOPS
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55.Which tool can be used to migrate file data for Windows hosts form a legacy VNX array to a new Dell Unity XT array? A. Rsync B. SANCopy C. DataDobi Answer: C
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56.What is a consequence of using a 1.6 TB drive and five 400 GB drives in a Dell EMC Unity XT dynamic pool? A. Extents 9 C 19 are used to create the RAID Group B. Unisphere short strokes the 1.6 TB drive to 8 extents C. Extents 9 C 19 are marked unavailable until more 1.6 TB drives are added D. Extents 9 C 19 are marked unavailable and can never be recovered Answer: C Explanation: Reference: https://www.delltechnologies.com/asset/en-us/products/storage/industrymarket/h16289-dell_emc_unity-dynamic_pools.pdf
57.A customer asks you about the maximum load of their new Dell EMC SC Series array. Which term should you use in response?
A. MB B. IOPS C. CPU Cycles D. Latency Answer: B Explanation: Reference: https://downloads.dell.com/manuals/common/sc-series-performanceavailability-best-practices- dell-emc-4024-bp-sc_en-us.pdf
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58.In Dell EMC PowerStore storage, if the remote cluster has multiple appliances, then what automatically chooses the destination appliance for the resource? A. Performance Policy B. Resource Balancer C. Master appliance D. Source array Answer: B Explanation: From the POWERSTORE ADMINISTRATION PARTICIPANT GUIDE, " Resource balancer also considers the the following when placing volumes: Whether the appliance is offline Appliance failure status Capacity utilization
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59.How many hierarchical snapshots are supported by Dell EMC PowerStore 9000X array? A. 0 levels deep for LUNs 0 levels deep for file systems B. 32 levels deep for LUNs 16 levels deep for file systems C. 10 levels deep for LUNs 10 levels deep for file systems D. 16 levels deep for LUNs 16 levels deep for file systems Answer: C
60.A customer asks you about adding 4-port 1 GbE BaseT connectivity to their Dell EMC Unity XT series array. What should be your response? A. 4-port 1GbE BaseT module is supported on Unity XT with the latest Enginuity code B. 4-port 1GbE BaseT module is provided by the Mezz card on Unity 80 series models C. 4-port 1GbE BaseT module is not available on Unity XT
D. 4-port 1GbE BaseT module is supported across all Unity models Answer: C
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61.A customer has a mixed environment consisting of Dell Unity 350F Dell Unity XT 680F. and Dell PowerStore 5000X They want to have a single interface to monitor and report on all the arrays. Which software tool should the technical architect recommend? A. CloudlQ B. Unisphere Analyzer C. Unisphere Central D. PowerStore Manager Answer: C Explanation: Unisphere Central is the recommended software tool for the customer as it allows for the monitoring and reporting of multiple Dell Unity and Dell PowerStore arrays through a single interface. It provides a unified management experience and allows for efficient monitoring and troubleshooting of the storage environment.
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62.A customer wants to asynchronously replicate file data from a production Dell Unity 550F to a remote office in the same city with a UnityVSA When attempting to replicate one of the file systems the replication option is not available. What should a technical architect advise the customer? A. Asynchronous replication is not supported to a UnityVSA B. The NAS server for the file system must be replicated C. Asynchronous replication requires a greater replication distance D. Only synchronous replication is supported on file systems Answer: B
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63.Which QoS option is NOT supported by Dell EMC Unity XT? A. Attached Snapshot B. Individual or Group LUN C. VMFS Datastore D. iSCSI Answer: C Explanation: Reference: https://muj.autocont.cz/Content/dellweb/pdf/Dell-EMX-Unity-XTprezentace.pdf?AspxAutoDetectCookieSupport=1
64.You are designing a Dell EMC PowerStore solution with a customer. They ask if
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they can populate Slots 0 to 10 with NVMe SSD drives. What should be your response? A. Any drive type can be populated in the remaining slots B. NVMe SSDs must be populated in the remaining empty slots C. NVMe SCM drives are required in Slots 0 through 10 D. NVMe SCM drives must be populated in the remaining empty slots Answer: B Explanation: Reference: https://www.dell.com/support/manuals/en-pk/powerstore/pwrstr-hwg/baseenclosure-component- overview?guid=guid-7914a554-6943-402ebd38-3e893163657e&lang=en-us
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65.A customer must protect file storage resources through asynchronous replication to other Dell Unity XT systems in different locations. What is the maximum number of remote systems that can be configured? A. 4 B. 24 C. 16 D. 8 Answer: C
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66.A customer has a fully scaled-out Dell PowerStore T cluster and wants to ensure that PowerStore Manager is in a highly available configuration How many instances of PowerStore Manager should be installed, and why? A. Four A customer should install one instance per appliance in the cluster B. Zero PowerStore Manager runs highly available by default C. Eight A customer should install one instance per node in the cluster D. Two PowerStore Manager needs at least two instances for a highly available configuration Answer: B
67.A storage administrator wants to do a tech refresh from a legacy EQL system to a new Dell EMC SC Series array. What is needed to correctly size the new array? A. Latency B. Peak IOPS information C. Storage tiers D. Contract support end date Answer: B
68.How many replication rules can be applied to a cluster in Dell EMC PowerStore? A. 16 B. 24 C. 32 D. 64 Answer: C
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69. What is the minimum number of IP addresses for optimal performance of PowerStore X ? A. 7 B. 4 C. 6 D. 9 Answer: C
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70.You are sizing a new Dell EMC SC Series array. Upon analyzing the Live Optics report, you find the current system has a peak throughput of 4687 MB. What is the minimum number of 10Gb iSCSI front-end ports required to meet the throughput needs? A. 8 B. 10 C. 12 D. 16 Answer: D
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71.What is achieved by adding a top tier of SSDs when designing a Dell Unity XT hybrid solution with FAST VP and FAST Cache? A. Isolates file top-talkers I/O from block data I/O B. Improves compression space efficiencies C. Provides an additional data redundancy layer D. Helps keep paged metadata on FLASH media Answer: D Explanation: FAST VP (Fully Automated Storage Tiering for Virtual Pools) and FAST Cache (Fully Automated Storage Tiering for Cache) are features that allow you to optimize the performance of your storage by automatically moving data between different storage tiers based on usage patterns. The SSD tier is used to store frequently accessed metadata, such as file system structures, directories, and inode tables, which are accessed frequently and are small enough to fit in the SSD cache. Keeping paged
metadata on flash media improves the overall system performance, as it allows for faster access to the metadata, reducing the latency and the number of I/O operations needed to access it.
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72.A storage administrator is trying to create a new hybrid pool on their Dell Unity XT 680. They want to add • 18x3.84 TBSSD drives • 72x 1200 GB 10K SAS drives • 64x 12 TBNLSAS drives However, this action is not being permitted by the Unity software. What is the reason for this? A. 3.84 TB SSD are only supported in all flash pools B. There are too many disks in the SAS tier C. 12 TB NLSAS drives are only permitted in archive pools D. The pool must be created with only a single drive type Answer: A Explanation: The storage administrator is not able to create a new hybrid pool on their Dell Unity XT 680 because the 3.84 TB SSD drives are only supported in all flash pools. Dell Unity XT supports the use of SSDs in all-flash pools, where the entire pool is built from SSD drives, to provide high performance for I/O-intensive workloads.
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73.Which parameters can be selected when sizing a Dell Unity XT 480F using the System Design method? A. Drive count and RAID level Percentage of random writes and reads B. Data reduction ratio Percentage of sequential writes and reads C. One of four workload types Drive count and RAID level D. One of two block sizes Application type Answer: C Explanation: When sizing a Dell Unity XT 480F using the System Design method, you can select one of four workload types and Drive count and RAID level. This workload type selection will take into account the specific IOPS and capacity requirements of the environment. The drive count and RAID level will determine the overall capacity and level of data protection required.
74.DRAG DROP drag to right to correct sep.
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Answer:
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Explanation: Diagram Description automatically generated
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75.Which NAS protocols does Dell PowerStore support? A. FTP, SMB, NFSv2, NFSv3, and FTPS B. FTPS, SMB, NFSv3, NFSv4, and FTP C. SMB, NFSv3, NFSv4p, FTP, and SFTP D. NFSv4, SMB, S3, FTP, and SFTP Answer: C Explanation: Dell PowerStore supports a variety of NAS protocols to provide file access to clients. These protocols include: ? SMB (Server Message Block): This protocol is used to provide file and printer sharing on Windows-based systems. ? NFSv3 (Network File System version 3): This is a standard protocol used to provide file access on UNIX-based systems.
? NFSv4 (Network File System version 4): This is the latest version of the NFS protocol and it provides enhanced security and improved performance over previous versions. ? FTP (File Transfer Protocol): This is a standard protocol used to transfer files between computers over a network. ? SFTP (Secure File Transfer Protocol): This is an extension of the FTP protocol that provides secure file transfer using SSH (Secure Shell) encryption.
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76.How many fans in a Dell EMC PowerStore node can fail before it shuts down? A. 1 B. 2 C. 3 D. 4 Answer: A Explanation: A node can tolerate a single fan module fault, and the surviving fans increase their speed to compensate for the faulted module. If two fan modules fault within the same node, the node performs a protective thermal shutdown. A protective thermal shutdown gracefully powers off the node, and any resource fails over to the surviving node Reference: https://www.delltechnologies.com/asset/en-us/products/storage/industrymarket/h18149-dell-emc-powerstore-platform-introduction.pdf
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77.Which Dell PowerStore migration method is recommended to remediate an out of space condition? A. Assisted Migration B. Migrate C. Live Migrate D. Auto Placement Answer: A Explanation: The assisted migration allows you to move data to a new storage pool with more capacity. This process can be done while the data is still online and accessible to hosts, and it allows you to add or replace drives, expand pools, and move data to a new array without any disruption.
78.Which Dell EMC tool uses an HTML5 interface and best practices to predict storage performance? A. Unity Sizer B. UniSphere
C. Midrange Sizer D. MiTrend Answer: C Explanation: Reference: https://wuchikin.wordpress.com/2016/11/14/emc-unity-sizer/
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79.Which file resources are supported with Dell EMC Unity asynchronous replication? A. File systems and LUNs B. LUNs and VMFS datastores C. NAS servers and NFS datastores D. Consistency Groups and file systems Answer: C Explanation: Reference: https://www.delltechnologies.com/en-us/documentation/unity-family/unityp-replication-config/02- unity-rep-br-workflow.htm
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