Exam4Training

DELL EMC DES-1D11 Specialist, Technology Architect | Midrange Storage Solutions Online Training

Question #1

In a Dell EMC Unity environment, how many Disk Partnership Groups will be created using all the disks shown in the exhibit?

  • A . 1
  • B . 2
  • C . 3
  • D . 5

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Correct Answer: B
Question #2

You are designing a Dell EMC Unity solution for a customer. The customer requires protection against the loss of a site for an application that is sensitive to long response times.

Which Unity feature meets these requirements?

  • A . Incremental Attach
  • B . Asynchronous Replication
  • C . Native SANCopy Import
  • D . Synchronous Replication

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Correct Answer: B
Question #3

A customer has a Dell EMC SC9000 that supports transparent, non-disruptive volume movement among arrays. This allows the combined capacity and cache of the entire federated cluster to be seamlessly utilized for maximum performance and scalability in expanding data centers.

By leveraging the eight SC9000 arrays, what will be the total maximum raw capacity?

  • A . 5.3 PB
  • B . 8 PB
  • C . 16 PB
  • D . 24 PB

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Correct Answer: D
Question #4

You are designing a Dell EMC Unity solution that uses external key management to provide data security to an array at a remote site.

Which encryption key is held in the KMIP server and is required for the Unity boot?

  • A . Key Wrapping Key
  • B . Store Ignition Key
  • C . RSA Key
  • D . Data Encryption Key

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Correct Answer: B
Question #5

Which value should be used for back-end sizing when planning a Dell EMC SC Series solution?

  • A . 1x front-end throughput
  • B . 2x front-end throughput
  • C . 3x front-end throughput
  • D . 4x front-end throughput

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Correct Answer: B
Question #6

What is a benefit of cross-platform replication between Dell EMC SC Series and PS Series?

  • A . Active Snapshot Replication
  • B . Live Volume Replication
  • C . Compression of replicated data
  • D . Leverages existing interfaces

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Correct Answer: D
Question #7

Based on Dell EMC SC Series architecture and sizing best practices, how should the total amount of IOPS be distributed on a 2-tier solution?

  • A . Tier 1: 50% IOPSTier 2: 50% IOPS
  • B . Tier 1: 100% IOPSTier 2: 40% IOPS
  • C . Tier 1: 80% IOPSTier 3: 20% IOPS
  • D . Tier 1: 100% IOPSTier 3: 20% IOPS

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Correct Answer: C
Question #8

When designing a Dell EMC Unity 550F, what is the maximum number of enclosures and drive slots per bus?

  • A . 10 enclosures and 250 drive slots
  • B . 10 enclosures and 500 drive slots
  • C . 15 enclosures and 275 drive slots
  • D . 15 enclosures and 1000 drive slots

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Correct Answer: A
Question #9

You are designing a solution for a customer who is sensitive to capacity needs. In addition, the environment consists of large read request I/O characteristics.

Which Dell EMC midrange storage solution will meet the customer’s requirements?

  • A . Unity All-Flash: Striping RAID, Dynamic Pool, and Flash 2 drivesSC Series: Data Progression and write-intensive SSDs on Tier 1
  • B . Unity All-Flash: Parity RAID, FAST VP, and FAST CacheSC Series: FastTrack and read-intensive SSDs on Tier 1
  • C . Unity All-Flash: Parity RAID, Dynamic Pool, and Flash 3 drivesSC Series: Data Progression and read-intensive SSDs on Tier 1
  • D . Unity All-Flash: Striping RAID, FAST VP, and FAST CacheSC Series: FastTrack and read-intensive SSDs on Tier 1

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Correct Answer: C
Question #10

What is recommended to maximize system performance on Dell EMC Unity systems?

  • A . Avoid distributing host connections across front-end ports
  • B . Use LACP for iSCSI connectivity
  • C . Build storage pools with many drives
  • D . Build storage pools with fewer drives

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Correct Answer: C

Question #11

Which Dell EMC Unity function does the File Import feature provide?

  • A . Hydrates compressed Unity file systems when tiering to the Cloud with the Cloud Tiering Appliance
  • B . Migrates VNX NFSv3 configured VDMs and the associated file systems to a Unity NAS server
  • C . Replicates file-based VVols between two Unity systems for load balancing
  • D . Moves NFS datastores between two Unity systems during a VMware vMotion operation

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Correct Answer: B
Question #12

A Dell EMC SC Series customer has purchased the Storage Optimization bundle and wants to ensure that Data Progression works efficiently.

Which snapshot schedule conforms to best practice when using Data Progression?

  • A . Daily snapshot with an expiration of no more than 23 hours
  • B . Daily snapshot with an expiration of exactly 24 hours
  • C . Daily snapshot with an expiration of at least 25 hours
  • D . Daily snapshot configured with no expiration time

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Correct Answer: C
Question #13

A Dell EMC SC180 is currently populated with 4 SSDs and 24 HDDs, totaling 28 disks.

What is the minimum number of disks that can be licensed for expansion?

  • A . 10
  • B . 14
  • C . 20
  • D . 28

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Correct Answer: B
B

Explanation:

The SC180 enclosure can be connected to a SCv2080 to add additional storage beyond the base unit capacity.

• The maximum number of drives that can be part of a SCv2080 as of SCOS release 7.1 is 168.

• The SC180 enclosure contains 84 drive slots.

• The minimum number of spinning (HDDs) or solid state (SSD) drives in an SC180 is 28. Drives can only be added in increments of 14.

• The SC180 is only supported as an expansion unit with the SCv2080.

• They are not sold separately.

• If you are familiar with the SC280 enclosure, the SC180 is similar but the enclosures are not interchangeable.

• The SC280 can be sold separately but only works with an SC4020, SC8000 or SC9000.

• It will not work on a SCv2080.

Question #14

Which Dell EMC Unity feature provides file data isolation by using VLAN tagging?

  • A . Access Logix
  • B . LUN Masking
  • C . IP Multi-tenancy
  • D . IP Packet Reflect

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Correct Answer: C
Question #15

A customer wants to provide file systems for two performance-intensive database applications on a Dell EMC Unity 500.

What is the recommended File storage configuration to balance the system performance?

  • A . Multiple file systems for each applicationAccess-based enumeration enabled on file system shares
  • B . Single NAS server with multiple interfacesDefine a preferred interface for outgoing communications
  • C . File systems created from different storage poolsClient-side caching of offline files enabled on file system shares
  • D . Separate NAS servers on each Storage ProcessorProvide storage for each application from separate NAS servers

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Correct Answer: D
Question #16

Which Dell EMC Unity component holds the contents of write cache upon the loss of AC power?

  • A . M.2 SSD drive
  • B . SP memory
  • C . Vault disk 0
  • D . Vault disks 0_3

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Correct Answer: A
Question #17

What is a benefit of using single-tier Flash with Dell EMC SC Series?

  • A . Support for write-intensive and read-intensive SSDs in the same tier
  • B . RAID 5/RAID 6 is converted to RAID 10 for increased efficiency
  • C . Snapshot data is sent to RAID 10 write-intensive SSDs to optimize capacity
  • D . Writes are sent to RAID 10 write-intensive SSDs for better performance

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Correct Answer: D
Question #18

Which feature controls the access to Dell EMC Unity storage resources using policies with throughput and bandwidth thresholds?

  • A . Quality of Service
  • B . Data Progression
  • C . Quotas
  • D . FAST VP

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Correct Answer: A
Question #19

You are designing a Dell EMC Unity storage system for a customer who is concerned about power requirements.

How much primary power is provided by each DPE power supply?

  • A . 200 Watts
  • B . 400 Watts
  • C . 800 Watts
  • D . 1100 Watts

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Correct Answer: B
Question #20

In a Dell EMC SC Series environment, what can be examined to determine a customer’s data

change rate?

  • A . Event logs
  • B . Volume properties
  • C . Incremental backups
  • D . DPACK reports

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Correct Answer: C

Question #21

A customer is using High Consistency mode for replication with a Dell EMC SC9000.

What will happen if the remote DR volume is unavailable?

  • A . Writes will stop to the source volume if the connection to the remote DR volume is unavailable
  • B . All access to the source volume will be prohibited, replication will need to be reconfigured
  • C . Writes will continue to the source volume and synchronize once the remote DR volume is available
  • D . Automated failover will occur, reconnecting the replication from the surviving controller

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Correct Answer: A
Question #22

A DPACK report shows that a customer needs a design to handle 21,000 IOPS from all servers with a read/write percentage of 70/30.

What will be the target back-end IOPS for a Dell EMC SC Series array design?

  • A . 21,000 IOPS
  • B . 25,200 IOPS
  • C . 27,300 IOPS
  • D . 35,700 IOPS

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Correct Answer: C
Question #23

How many Dell EMC SC9000 slots, per controller, are available for PCle cards?

  • A . 3 full height and 3 half-height card slots
  • B . 3 full height and 4 half-height card slots
  • C . 3 full height (one reserved for write cache) and 3 half-height card slots
  • D . 4 full height (one reserved for write cache) and 3 half-height card slots

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Correct Answer: D
Question #24

At which point is the Dell EMC Unity FAST Cache capacity reclaimed when a FAST Cache shrink operation is performed?

  • A . When the shrink operation is started
  • B . After all FAST Cache drives are deleted
  • C . After all dirty pages are cleaned within a set of drives
  • D . After the contents of FAST Cache are written to memory

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Correct Answer: A
Question #25

Which supported network configuration in Dell EMC Unity NAS servers provide network high availability and redundancy when provisioning File storage for a NAS client?

  • A . Preferred interfaces
  • B . Production and backup interfaces
  • C . Fail-safe networking
  • D . Link Aggregation

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Correct Answer: D
Question #26

A customer is considering a Dell EMC SC Series storage solution for their business.

Which tool can be used to help determine the IOPS target for the solution?

  • A . Microsoft Disk Manager
  • B . Fibre Channel or Ethernet Switch Logs
  • C . Dell Performance Analysis Collection Kit
  • D . Wireshark Protocol Analyzer

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Correct Answer: C
Question #27

A customer has an OLTP application running on a host accessing Dell EMC Unity Block storage. The application performance is experiencing CPU bottlenecks caused by iSCSI workloads. As a result, you are recommending the addition of an expansion module with an iSCSI Offload engine to the Unity system.

Which Unity expansion module is recommended?

  • A . 2-port 10 GB/s iSCSI module with SFP
  • B . 4-port 1 GB/s GbaseT module RJ45
  • C . 4-port 10 GB/s iSCSI module with SFP
  • D . 4-port 10 GB/s GbaseT module RJ45

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Correct Answer: A
Question #28

What can be the result of having too few drives in Tier 3 of a Dell EMC SC Series solution?

  • A . DSM Automated Reports may not update
  • B . Cache will be automatically disabled
  • C . Back-end cross-connect may become saturated
  • D . Poor Data Progression performance

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Correct Answer: D
Question #29

You are designing a solution for a customer who is sensitive to capacity needs. In addition, they require low latency for large write I/Os.

Which Dell EMC midrange storage solution will meet the customer’s requirements?

  • A . Unity Hybrid: Striping RAID, All-Flash Pool, and FAST CacheSC Series: FastTrack and read-intensive SSDs on Tier 1
  • B . Unity Hybrid: Parity RAID, All-Flash Pool, and FAST CacheSC Series: FastTrack and write-intensive SSDs on Tier 1
  • C . Unity Hybrid: Striping RAID, Dedicated Pool, and Flash 2 drives on Tier 1SC Series: Data Progression and write-intensive SSDs on Tier 1
  • D . Unity Hybrid: Parity RAID, Dedicated Pool, and Flash 3 drives on Tier 1SC Series: Data Progression and read-intensive SSDs on Tier 1

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Correct Answer: C
Question #30

A customer plans to purchase a Dell EMC Unity storage system for their file storage needs. The solution must provide a way to limit the storage capacity offered to the users.

Which Unity feature will provide this functionality?

  • A . Host I/O Limits
  • B . Thin Clones
  • C . File System Shrink
  • D . File System Quotas

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Correct Answer: D
D

Explanation:

Unity supports the File System Quotas which will enable a storage administrator to track and/or limit usage of a file system. Limiting usage is not the only application of quotas. The quota tracking capability can be useful for tracking and reporting usage by simply setting the quota limits to zero. Quota limits can be designated for users, or a directory tree. Limits are stored in quota records for each user and quota tree. Limits are also stored for users within a quota tree. The usage is determined by “File Size” (which is the default) or “Blocks”. The File Size quota policy calculates the disk usage based on logical file sizes in 1K increments. The block quota policy calculates the disk usage in file system blocks at 8KB file system blocks. Hard and soft limits are set on the amount of disk space allowed to be used.

Question #31

A customer wants to replace a PowerVault MD that has SAS-connected rack-mount 13G PowerEdge servers. The servers need to remain unmodified.

Which Dell EMC SC Series solution is recommended?

  • A . SCv2000 and SC8000
  • B . SC4020 and SCv2000
  • C . SC4020 and SC8000
  • D . SC9000 and SC8000

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Correct Answer: B
Question #32

A customer wants to add self-encrypting SSDs to a Dell EMC SC8000 system running SCOS version 6.5. They have deployed a SafeNet Key Management server in the network.

Does the customer need to do anything else?

  • A . No. Add and manage the SSDs in the disk folder.
  • B . Yes. Upgrade the hardware to SC9000 and SC220 enclosures.
  • C . Yes. Upgrade to SCOS 6.7 release or newer.
  • D . Yes. Add a new enclosure exclusively for the SSDs.

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Correct Answer: C
Question #33

Which Dell EMC tool uses an HTML5 interface and best practices to predict storage performance?

  • A . Unity Sizer
  • B . Unity Designer
  • C . MiTrend
  • D . Analyzer Helper

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Correct Answer: A
Question #34

Why is the drive size a threshold in Dell EMC SC Series for Dual Redundancy?

  • A . RAID protection level during a disk allocation failure
  • B . RAID stripe reconstruction time during a disk failure
  • C . Data Progression run times are longer with larger drives
  • D . Cost per GB on larger drives is less

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Correct Answer: B
Question #35

Which Dell EMC Unity technology is the Local LUN Move feature architecture built upon?

  • A . Inband Migration Tool
  • B . Copy on First Write
  • C . SanCopy Push
  • D . Transparent Data Transfer

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Correct Answer: D
Question #36

Using customer-supplied information, you have designed a solution using a Dell EMC Unity 400F with 250 drives. The customer now wants to increase the drive count to 340 drives at the lowest cost.

Which Unity model configuration should be recommended?

  • A . Keep the Unity 400F and add two 80-drive DAEs
  • B . Keep the Unity 400F and add four 25-drive DAEs
  • C . Upgrade to a Unity 500F and add two 80-drive DAEs
  • D . Upgrade to a Unity 500F and add two 25-drive DAEs

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Correct Answer: C
Question #37

What are the Dell EMC midrange storage offerings for capacity efficiency?

  • A . Unity: Compression and Post-Process DeduplicationSC Series: Inline Compression
  • B . Unity: Intelligent Compression and DeduplicationSC Series: Inline Compression and Deduplication
  • C . Unity: Post-Process Compression and DeduplicationSC Series: Inline Compression and Deduplication
  • D . Unity: Compression for BlockSC Series: Intelligent Compression and Deduplication

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Correct Answer: D
Question #38

Which logical drives are reserved for the Dell EMC Unity operating system?

  • A . Drives 0 C 3 on 12-drive and 25-drive DPE models
  • B . Drives 0 C 3 on only a 12-drive DPE modelDrives 1 C 4 on only a 25-drive DPE model
  • C . Drives 0 C 3 on only a 25-drive DPE modelDrives 1 C 4 on only a 12-drive DPE model
  • D . Drives 1 C 4 on 12-drive and 25-drive DPE models

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Correct Answer: A
Question #39

A Dell EMC SC7020 contains the following drives:

-Tier 1: Write-intensive SSDs

-Tier 2: Read-intensive SSDs

-Tier 3: 7K HDDs

Which tier(s) will qualify for deduplication and compression?

  • A . Tier 1 only
  • B . Tier 1 and Tier 3 only
  • C . Tier 1, Tier 2, and Tier 3
  • D . Tier 2 and Tier 3 only

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Correct Answer: D
Question #40

To maximize system performance on Dell EMC Unity systems, what is recommended?

  • A . Distribute Flash drives across back-end buses
  • B . Use a 12-drive DPE with only Hybrid systems
  • C . Build storage pools with only a minimum number of drives
  • D . Distribute host connections across as few front-end ports as possible

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Correct Answer: A

Question #41

You are designing a Dell EMC Unity solution for a customer. The customer wants to store top secret government file and block data. This data needs to be protected even in the event of physical theft of the Unity disks.

Which feature should be included in the design?

  • A . LACP
  • B . IP Multi-tenancy
  • C . Host I/O Limits
  • D . D@RE

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Correct Answer: D
Question #42

What are the characteristics of RAID Extents on a Dell EMC Unity system?

  • A . RAID extents contain at least two drive extents from the same drive.RAID extents always include drive extents from two different Drive Partnership Groups.
  • B . Number of drive extents within a RAID extent is determined by the drive capacity.RAID extents will not include drive extents from two different Drive Partnership Groups.
  • C . No RAID extents contain two drive extents from the same drive.RAID extents will not include drive extents from two different Drive Partnership Groups.
  • D . No extents contain two drive extents from the same drive.RAID extents are always 256 MB in size.

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Correct Answer: C
Question #43

When implementing FAST VP, which Dell EMC best practices should be followed?

  • A . Use the “Lowest Available Tier” during normal operationsSchedule relocations after nightly backups
  • B . Use the “Auto Tier” policySchedule relocations continually during normal operations
  • C . Use the “Start High then Auto Tier” policyMaintain at least 10 percent of the pool capacity
  • D . Use the “Start High then Auto Tier” policyMaintain at least 5 percent pool capacity

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Correct Answer: C
Question #44

Which feature is supported with cross-platform replication between Dell EMC PS and SC Series arrays?

  • A . Replication of volume collections
  • B . Cascade mode with an EQL PS Group
  • C . Compression of replicated data
  • D . Asynchronous Replication

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Correct Answer: D
Question #45

What is a consideration when sizing a Dell EMC SC Series system for capacity?

  • A . Thin provisioning
  • B . Raid overhead
  • C . Virtual volumes
  • D . Compression and deduplication

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Correct Answer: B
Question #46

Which Dell EMC Unity and SC Series features provide post-processing for placing data on appropriate storage tiers?

  • A . Unity: Host I/O LimitsSC Series: Volume QoS
  • B . Unity: FAST VPSC Series: Data Progression
  • C . Unity: Compression for BlockSC Series: Deduplication and Compression
  • D . Unity: Synchronous ReplicationSC Series: Live Volume

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Correct Answer: B
Question #47

A system administrator needs to migrate data from a PS Series Group with version 8 firmware to a new Dell EMC SC Series array with SCOS version 7. Both systems are currently managed from the same Dell Storage Manager 2016 R1.

In order to complete a successful migration, what is the correct sequence of tasks that must occur?

  • A . Upgrade the PS Group firmware to version 9Configure iSCSI connectivity between the PS Group and SC arrayConfigure Asynchronous Replication between the PS Group and SC array
  • B . Configure iSCSI connectivity between the PS Group and SC arrayConfigure Synchronous Replication between the PS Group and SC arrayUpgrade the PS Group firmware to version 9
  • C . Upgrade the PS Group firmware to version 9Configure HIT on the PS GroupConfigure Asynchronous Replication between the PS Group and SC array
  • D . Upgrade the PS Group firmware to version 9Configure iSCSI connectivity between the PS Group and SC arrayConfigure Cascade mode between the PS Group and SC array

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Correct Answer: A
Question #48

What is the main advantage of sizing a Dell EMC SC Series array focusing on IOPS when using the 95th percentile instead of peak values?

  • A . Provides a properly sized and accurately priced solution
  • B . Reduces complexity in preparing a properly sized solution
  • C . Provides a secure solution with data efficiency
  • D . Demonstrates a clear relationship between customer needs and offerings

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Correct Answer: A
Question #49

An analysis of a customer’s requirements reveals that the daily throughput peak is approximately 1750 MB/s.

Which Dell EMC SC Series solution provides sufficient back-end performance?

  • A . SCv2000 with 1 SAS chain
  • B . SCv4020 with 1 SAS chain
  • C . SCv8000 with 1 SAS chain
  • D . SCv9000 with 1 SAS chain

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Correct Answer: A
Question #50

Which Dell EMC Unity feature is beneficial for data protection designs but has a negative impact on performance designs?

  • A . Unity Compression for Block
  • B . Synchronous remote replication
  • C . Unity Compression for File
  • D . Data at Rest Encryption

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Correct Answer: B

Question #51

What is the minimum SCOS version required to implement Storage QoS in a Dell EMC SC Series storage?

  • A . SCOS version 6.5
  • B . SCOS version 6.7
  • C . SCOS version 7.0
  • D . SCOS version 7.1

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Correct Answer: C
Question #52

You are designing a solution that will provide integration of a Dell EMC Unity storage array with a virtualized environment by provisioning VMFS datastores accessed through Fibre Channel. The customer uses the infrastructure for VDI deployment and provisioning of regular VMs. The host access is balanced by Quality of Service (QoS).

Which Unity QoS feature will address the expected Boot storm caused by powering up the virtual desktops at a certain time of the day?

  • A . Quotas
  • B . Density-based Policy
  • C . Burst Policy
  • D . Host I/O Limit Pause

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Correct Answer: C
Question #53

A customer has a Dell EMC Unity 500 at their headquarters location. They want to deploy a UnityVSA in a remote/branch office environment to run an instance of a mission-critical financial application. In addition, they want to ensure that headquarters and the branch offices share the same information by using asynchronous replication. Finally, the customer wants to add 10 TB of capacity in the next 6 months.

Since a Professional Edition subscription with the lowest storage capacity was purchased, what is the minimum upgrade subscription required?

  • A . 4 TB to 10 TB
  • B . 10 TB to 25 TB
  • C . 10 TB to 50 TB
  • D . 25 TB to 50 TB

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Correct Answer: B
Question #54

A customer wants you to design a Dell EMC Unity solution for a complex network design for their file storage users. The users must connect to Unity file storage over only specific networks.

Which Unity feature provides the flexibility for controlling client connectivity from different isolated networks?

  • A . Link Aggregation Control Protocol
  • B . IP Packet Reflect
  • C . Advanced Static Routing
  • D . IP Multi-tenancy

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Correct Answer: D
Question #55

A customer wants a power requirements comparison between their current Dell EMC PS Series storage and the proposed SC Series solution.

Which tool can be used to build the comparison?

  • A . TechCenter
  • B . Internet Search Engine
  • C . DPACK
  • D . SC Series Sizing Tool

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Correct Answer: A
Question #56

Which front-end options are available for each Dell EMC SC4020 controller?

  • A . 2 FC 16 Gb, 2 FC 8 Gb4 iSCSI 10 Gb, 4 SAS 12 Gb
  • B . 2 FC 16 Gb, 4 FC 8 Gb4 iSCSI 10 Gb, 4 SAS 12 Gb
  • C . 4 FC 16 Gb, 2 FC 8 Gb4 iSCSI 10 Gb, 4 SAS 12 Gb
  • D . 4 FC 16 Gb, 4 FC 8 Gb4 iSCSI 10 Gb, 4 SAS 12 Gb

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Correct Answer: B
Question #57

A customer has a Dell EMC SC9000 with six SC420 enclosures.

The enclosure configuration is as follow:

– Two enclosures have write-intensive SSD drives

– Four enclosures have read-intensive SSD drives

As a general guideline, what is recommended for spare drive assignment?

  • A . 1 spare per shelf
  • B . 1 spare per drive type
  • C . 2 spares per drive type
  • D . 3 spares per drive type

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Correct Answer: A
Question #58

A customer wants a solution that uses SAS Flash 3 drives with RAID 5 protection on a Dell EMC Unity 650F.

What is the minimum number of drives and RAID width allowed when the pool is sized?

  • A . 5 drives with a RAID width of 4+1
  • B . 6 drives with a RAID width of 4+1
  • C . 10 drives with a RAID width of 8+1
  • D . 14 drives with a RAID width of 12+1

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Correct Answer: A
Question #59

When designing a Dell EMC SC Series system, which factors are important to understand regarding performance?

  • A . I/O Size and Read Size
  • B . Write Size and Latency
  • C . Latency and Queue Depth
  • D . Transport and Queue Depth

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Correct Answer: C
Question #60

A customer requires a minimum of 6 PB of raw capacity and six back-end SAS connections.

Which Dell EMC Unity model meets these requirements?

  • A . Unity 350F
  • B . Unity 400
  • C . Unity 450F
  • D . Unity 500

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Correct Answer: D

Question #61

Which Dell EMC SC Series model presents an all-in-one format, including dual-controllers and disks enclosures in a single chassis?

  • A . SC40
  • B . SC4020
  • C . SC8000
  • D . SC9000

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Correct Answer: B
Question #62

Which Dell EMC Unity design consideration must be accounted for if the Native SANCopy Import feature is to be used?

  • A . Failover mode 4 needs to be enabled for all Unity LUNs
  • B . A Fibre Channel port from each Storage Processor is required
  • C . Capacity must be allocated for SANCopy Reserved LUN Pool LUNs
  • D . Hot access of data will require PowerPath Multipathing software

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Correct Answer: C
Question #63

You are designing a Dell EMC Unity solution for a customer who requires space efficiency. In addition, they want a local form of protection from data loss or corruption accidently caused by a user.

Which Unity feature meets these requirements?

  • A . Local LUN Move
  • B . Replication
  • C . Snapshots
  • D . D@RE

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Correct Answer: C
Question #64

A customer has a Dell EMC Unity 550F with a single pool consisting of 10 drives configured as a RAID 5 (4+1) configuration.

What is the minimum amount of drives required to expand the pool?

  • A . 1
  • B . 5
  • C . 6
  • D . 10

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Correct Answer: A
Question #65

What is the reason for using mirrored cache in Dell EMC Unity storage systems?

  • A . Provide a secondary copy of write data for the same Storage Processor
  • B . Provide a secondary copy of read cached data for the peer Storage Processor
  • C . Provide the only copy of read data for each Storage Processor
  • D . Provide a secondary copy of write cached data for the peer Storage Processor

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Correct Answer: D
Question #66

What is the purpose of the M.2 SSD in a Dell EMC Unity storage system?

  • A . Provides a de-staging area for write cache
  • B . Holds the Unity operating system and configuration
  • C . Allows for an orderly shutdown and cache de-staging
  • D . Provides a location to cache active data for fast retrieval

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Correct Answer: D
D

Explanation:

, the memory contents of the SP’s cache is written to the M.2 SSD device so it can be recovered once the SP is restored.

Question #67

You are designing a Dell EMC Unity solution for a customer who wants to accommodate multiple database instances on block storage. In addition, they want to protect the data with snapshots and AppSync using a Consistency Group.

What is the maximum number of LUNs that can be associated with the Consistency Group?

  • A . 10
  • B . 40
  • C . 35
  • D . 50

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Correct Answer: D
D

Explanation:

An addressable instance of LUN storage that can contain one or more LUNs (up to 50) and is associated with one or more attached hosts. References:

Question #68

A customer wants to integrate a Dell EMC Unity Hybrid system with a Linux OS host running on Oracle application. The Oracle application requires that the database files are deployed on a large amount of spindles to meet a low I/O latency requirement. In addition, the customer wants to use the available Unity drives and deploy the database on 10K RPM SAS or NL-SAS, reducing the number of required spindles.

Which Unity feature will enable the proposed solution to provide effective storage utilization and optimized performance?

  • A . Dynamic Pools
  • B . FAST Cache
  • C . Traditional Pools
  • D . FAST VP

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Correct Answer: D
Question #69

Which Dell EMC Unity design consideration must be accounted for if the Native SANCopy Import feature is used?

  • A . Capacity must be allocated for SANCopy Reserved LUN Pool LUNs
  • B . An iSCSI port from each Storage Processor is required
  • C . Failover mode 4 needs to be enabled for all Unity LUNs
  • D . Hot access of data requires PowerPath Multipathing software

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Correct Answer: A
Question #70

You are designing a solution for a customer who is sensitive to capacity needs. In addition, the environment consists of large read request I/O characteristics.

Which Dell EMC midrange storage solution will meet the customer’s requirements?

  • A . Unity Hybrid: Parity RAID, FAST VP, and Flash 2 drives on Tier 1SC Series: Data Progression and read-intensive SSDs on Tier 1
  • B . Unity Hybrid: Striping RAID, All-Flash Pool, and FAST CacheSC Series: FastTrack and read-intensive SSDs on Tier 1
  • C . Unity Hybrid: Parity RAID, All-Flash Pool, and FAST CacheSC Series: FastTrack and read-intensive SSDs on Tier 1
  • D . Unity Hybrid: Striping RAID, Dedicated Pool, and Flash 2 drives on Tier 1SC Series: Data Progression and write-intensive SSDs on Tier 1

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Correct Answer: A

Question #71

A customer wants to expand their Dell EMC Unity system that includes a pool of 64 drives in a RAID 5 (4+1) configuration.

What is the minimum amount of drives needed to expand the pool?

  • A . 1
  • B . 5
  • C . 6
  • D . 10

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Correct Answer: C
Question #72

A customer wants a solution to support a virtual desktop infrastructure that requires faster storage at the lowest cost. In addition, they want to limit the maximum number of drives to 450.

Which Dell EMC Unity model should be recommended?

  • A . Unity 350F
  • B . Unity 450F
  • C . Unity 550F
  • D . Unity 650F

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Correct Answer: C
Question #73

A Dell EMC SC Series customer has purchased the Storage Optimization bundle and wants to ensure that Data Progression works efficiently.

Which snapshot schedule conforms to best practice when using Data Progression?

  • A . Daily snapshot with an expiration of exactly 24 hours
  • B . Daily snapshot with an expiration of at least 25 hours
  • C . Weekly snapshot with an expiration of exactly 7 days
  • D . Weekly snapshot with an expiration of at least 8 days

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Correct Answer: B
Question #74

What is the recommended procedure to capture data with the Dell Performance Analysis Collection Kit (DPACK)?

  • A . Save customer environment data on the array that is running DPACK
  • B . Send data in near real-time to the DPACK server over a secure encrypted connection
  • C . Save customer environment data on the host that is running DPACK
  • D . Send data in real-time to the DPACK server over an FTP connection

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Correct Answer: B
Question #75

Which supported configuration in Dell EMC Unity NAS servers provide link transmission optimization for File storage to NAS clients?

  • A . VLAN Tagging
  • B . Jumbo Frames
  • C . Fail-safe networking
  • D . Link Aggregation

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Correct Answer: B
Question #76

Which Dell EMC Unity feature provides improved system performance by identifying a chunk of Block data that is accessed frequently?

  • A . Quality of Service
  • B . Data Progression
  • C . FAST Cache
  • D . FastTrack

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Correct Answer: C
Question #77

What is a benefit of a Dell EMC SC Series Flash-optimized solution?

  • A . Writes are sent to Tier 1 write-intensive SSDs for better performance
  • B . Snapshot data is sent to RAID 10 write-intensive SSDs to optimize capacity
  • C . Support for write-intensive and read-intensive SSDs in the same tier
  • D . RAID 5 /RAID 6 is converted to RAID 10 for increased efficiency

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Correct Answer: A
Question #78

A company wants to improve high availability for their corporate VMware vSphere cluster. They want to implement a stretched cluster over two separate data centers.

Currently they have one vSphere cluster in a single data center connected to one Dell EMC SCv2020 over iSCSI.

Which SC Series solution addresses the customer’s requirements?

  • A . One SC4020 at one site replicating synchronously with the current SCv2020
  • B . Two SCv2020s; one at each data center and one configured for asynchronous replication between them
  • C . Two SCv2080s; one at each data center and one configured Live Volume between them
  • D . Two SCv4020s; one at each data center and one configured Live Volume between them

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Correct Answer: D
Question #79

Which technology is the Dell EMC Unity File Import feature architecture built upon?

  • A . Inband Migration Tool
  • B . SANCopy Push
  • C . Transparent Data Transfer
  • D . Redirect on Write

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Correct Answer: A
Question #80

When a customer has sustained peak values for critical workloads, what is the main advantage of sizing a Dell EMC SC Series array for IOPS using 99th percentile instead peak values?

  • A . Demonstrates a clear relationship between customer needs and offerings
  • B . Provides a properly sized and accurately priced solution
  • C . Reduces complexity in preparing a properly sized solution
  • D . Provides a secure solution with data efficiency

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Correct Answer: B

Question #81

A customer needs to take point in time copies of a Microsoft SQL Server database. They want to minimize the impact of critical applications accessing this server, including in flight data. All LUNs are stored on a Dell EMC SC7020 licensed with the Storage Optimization bundle.

Which bundle will address the customer’s requirements?

  • A . Data Progression bundle
  • B . Performance bundle
  • C . Enterprise Capacity bundle
  • D . Storage Protection bundle

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Correct Answer: D
Question #82

A customer with a large test/dev environment needs a Dell EMC Unity solution. The solution must be capacity efficient to address the customer’s cost concerns.

Which Unity feature meets this requirement?

  • A . File System Quotas
  • B . Unity Host I/O Limits
  • C . Unity Local Replication
  • D . Unity Snapshots

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Correct Answer: B
Question #83

Which Dell EMC Unity and SC Series features benefit efficient use of capacity?

  • A . Unity: FAST CacheSC Series: FastTrack
  • B . Unity: FAST VPSC Series: Data Progression
  • C . Unity: FAST CacheSC Series: Data Progression
  • D . Unity: FAST VPSC Series: FastTrack

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Correct Answer: B
Question #84

What is the Dell EMC best practice for sizing and designing an SC Series solution?

  • A . Size for capacity, Data Progression should always meet performance needs
  • B . Size for performance first and capacity second
  • C . Drive amount for capacity should meet performance needs
  • D . Drive amount required for performance should always meet capacity needs

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Correct Answer: C
Question #85

You are designing a Dell EMC Unity solution for a customer requiring file storage. They need to control capacity assigned to different development projects.

Which feature meets the customer’s requirements?

  • A . File System Tree Quotas
  • B . Unity Compression for File
  • C . Host I/O Limits
  • D . IP Multi-tenancy

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Correct Answer: A
Question #86

When using the Dell EMC SC Series “rule of thumb” for IOPS per drive numbers, what will deliver 7,500 back-end IOPS?

  • A . 36, 2.5’’ 10K drives
  • B . 36, 2.5’’ 15K drives
  • C . 36, 3.5’’ 7.2K drives
  • D . 36, 3.5’’ 15K drives

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Correct Answer: B
Question #87

An analysis of a customer’s current environment reveals a peak of 6,600 IOPS with 4,500 writes and 2,100 reads. The sample was gathered at 10-minute intervals.

Given this information, what is a reasonable IOPS target for the Tier 1 drives in a Dell EMC SC Series solution?

  • A . 7,000 IOPS
  • B . 9,000 IOPS
  • C . 12,000 IOPS
  • D . 15,000 IOPS

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Correct Answer: C
Question #88

A customer wants a solution that includes a single 12-drive DPE and six 25-drive DAEs.

Which Dell EMC Unity model should be recommended?

  • A . Unity 300
  • B . Unity 400
  • C . Unity 450F
  • D . Unity 500F

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Correct Answer: B
Question #89

How does the Dell EMC SCv2000 differ from the other SC Series offerings regarding Data Progression?

  • A . Data Progression is not automated in the system
  • B . RAID tiering is the only functionality of the SCv2000
  • C . Storage profiles must be created for each volume upon creation
  • D . No storage profiles are available in the SCv2000

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Correct Answer: B
Question #90

A customer needs to test applications with real workloads and all data services associated with the production LUNs.

Which Dell EMC Unity advanced storage feature provides this capability without interfering with the production storage resources?

  • A . Thin Clones
  • B . Consistency Groups
  • C . Local Replication
  • D . SnapView

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Correct Answer: A
A

Explanation:

Thin clones allow development and test personnel to work with real workloads and use all data services associated with production storage resources without interfering with production. References:

Question #91

Which benefit is available with cross-platform replication between Dell EMC SC Series and PS Series?

  • A . Compression of replicated data
  • B . Active Snapshot Replication
  • C . Multiple recovery points
  • D . Live Volume Replication

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Correct Answer: C
Question #92

A Dell EMC SC7020 contains the following drives:

-Tier 1: Write-intensive SSDs

-Tier 2: 10K HDDs

-Tier 3: 7K HDDs

Which tiers will qualify for deduplication and compression?

  • A . Tier 1 and Tier 2 only
  • B . Tier 1 and Tier 3 only
  • C . Tier 1, Tier 2, and Tier 3
  • D . Tier 2 and Tier 3 only

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Correct Answer: B
Question #93

Which controllers support Dell EMC SC200, SC220, and SC280 enclosures?

  • A . SCv2020, SC4020, and SC7020
  • B . SCv2020, SC7020, and SC9000
  • C . SC4020, SC7020, and SC9000
  • D . SC4020, SC8000, and SC9000

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Correct Answer: D
Question #94

What is a capability of the Dell EMC Unity Compression for File feature?

  • A . Compression of data is performed in a post-processing manner
  • B . Compression of data can be scheduled for non-production times
  • C . Can be enabled at any time on pools that support the feature
  • D . Can only be enabled on newly created pools without user data

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Correct Answer: C
Question #95

A customer is creating their business continuity plan and wants the RTO and RPO as low as feasibly possible.

Which Dell EMC SC Series operating system (SCOS) feature can deliver an RTO of minutes with an RPO of zero?

  • A . Consistency Group Snapshots
  • B . Replay Manager with VSS
  • C . Synchronous Live Volume
  • D . High Availability Replication

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Correct Answer: C
Question #96

When designing front-end connectivity for a Dell EMC SC Series solution, what must be considered?

  • A . Data Progression
  • B . Management
  • C . Cache synchronization
  • D . Replication

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Correct Answer: D
Question #97

What is a capability of the Dell EMC Unity D@RE feature?

  • A . Uses the hardware SAS controller to encrypt data as it is written to the disks
  • B . Encrypts the data in read requests delivered back to the host
  • C . Uses self-encrypting drives to encrypt data as it is written to the disks
  • D . Encrypts data written to the disks in a post-processing manner

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Correct Answer: A
Question #98

In Dell Unity systems, which Flash drive types can be used in both FAST Cache and FAST VP?

  • A . 200 GB and 400 GB SAS Flash 2 drives
  • B . 400 GB, 800 GB, and 1.6 TB SAS Flash 3 drives
  • C . 1.6 TB and 3.2 TB SAS Flash 2 drives
  • D . 3.84 TB and 7.68 TB SAS Flash 4 drives

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Correct Answer: A
Question #99

What is the guideline when sizing for IOPS on a Dell EMC SC Series solution with two tiers?

  • A . Tier 1 = 20% of ADJUSTED IOPSTier 3 = 100% of ADJUSTED IOPS
  • B . Tier 1 = 50% of ADJUSTED IOPSTier 3 = 50% of ADJUSTED IOPS
  • C . Tier 1 = 100% of ADJUSTED IOPSTier 3 = 20% of ADJUSTED IOPS
  • D . Tier 2 = 95% of ADJUSTED IOPSTier 3 = 95% of ADJUSTED IOPS

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Correct Answer: C
Question #100

Which feature is supported with cross-platform replication between Dell EMC PS and SC Series arrays?

  • A . Active Snapshot Replication
  • B . Encryption of replicated data
  • C . Application integration with replicas
  • D . Asynchronous Replication

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Correct Answer: D

Question #101

When designing a Dell EMC SC Series solution, where can be found technical documents regarding specific applications?

  • A . Partner portal
  • B . TechCenter
  • C . Dell Support site
  • D . SC Series Deployment guides

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Correct Answer: B
Question #102

You are designing a Dell EMC Unity Block storage solution for use in a customer’s virtual desktop environment (VDI). In addition, the array will store several critical database applications for hosts that are sensitive to long response times.

What should be used to prevent the VDI environment from disrupting the database application response times?

  • A . Thin clones for VDI storage and Flash pools for database applications
  • B . Host I/O Limits for the database application storage
  • C . IP Multi-tenancy, configuring tenants for the VDI and database applications
  • D . Host I/O Limits for the VDI storage, configured for bursts

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Correct Answer: D
Question #103

In a Dell EMC Unity environment, which design configuration will support synchronous replication?

  • A . Consistency Groups on a UnityVSA system
  • B . Consistency Groups on a Unity 450F system
  • C . NFS datastores on a UnityVSA system
  • D . NFS datastores on a Unity 450F system

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Correct Answer: B
Question #104

You are designing a Dell EMC Unity solution that will be used by an ISP. The ISP will share the system with several different customers for file storage. For security reasons, each customer must be segregated from each other?

Which feature provides this functionality?

  • A . IPSec
  • B . IP Multi-tenancy
  • C . File System Quotas
  • D . D@RE

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Correct Answer: B
Question #105

Which Dell EMC Unity function does the File Import feature provide?

  • A . Migrates VNX CIFS-configured VDMs and the associated file systems to a Unity SMB NAS server
  • B . Moves SMB shared file systems between two Unity systems during a Hyper-V cluster failover
  • C . Replicates file-based Vvols between two Unity systems for load balancing
  • D . Hydrates compressed Unity file systems when tiering to the Cloud with the Cloud Tiering Appliance

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Correct Answer: A
Question #106

You are designing a solution for a customer who is sensitive to capacity needs. In addition, they require low latency for large write I/Os.

Which Dell EMC midrange storage solution will meet the customer’s requirements?

  • A . Unity All-Flash: Parity RAID, Dynamic Pool, and Flash 2 drivesSC Series: Data Progression and write-intensive SSDs on Tier 1
  • B . Unity All-Flash: Parity RAID, FAST VP, and FAST CacheSC Series: FastTrack and write-intensive SSDs on Tier 1
  • C . Unity All-Flash: Parity RAID, Dynamic Pool, and Flash 3 drivesSC Series: Data Progression and read-intensive SSDs on Tier 1
  • D . Unity All-Flash: Striping RAID, FAST VP, and FAST CacheSC Series: FastTrack and read-intensive SSDs on Tier 1

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Correct Answer: A
Question #107

Which Dell EMC SC Series model presents an all-in-one format, including dual-controllers and disks enclosures in a single chassis?

  • A . SC40
  • B . SC7020
  • C . SC8000
  • D . SC9000

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Correct Answer: B
Question #108

You are designing a Dell EMC Unity solution for a customer. The customer requires protection

against the loss of a site. In addition, they need the shortest RPO.

Which Unity feature meets these requirements?

  • A . Incremental Attach
  • B . Asynchronous Replication
  • C . Native SANCopy Import
  • D . Synchronous Replication

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Correct Answer: D
D

Explanation:

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