Deck 4: Unity Solutions Specialist Exam for Implementation Engineers

Question 1

A company has the following available drive types in their Dell EMC Unity 500 storage array: 1.2 TB SAS 2 TB NL-SAS 100 GB SSD 1.6 TB SSD 3.8 TB SSD What combination of drives can the company use to create a storage pool?

A) 2 TB NL-SAS and 100 GB SSD
B) 1.6 TB SSD and 3.8 TB SSD
C) 1.2 TB SAS and 1.6 TB SSD
D) 2 TB NL-SAS and 3.8 TB SSD

Answer 1

2 TB NL-SAS and 3.8 TB SSD

Question 2

Which Unity feature benefits oracle OLTP environments by improving storage utilization?

A) 4 block formatting
B) Increased SP Cache size
C) Automatic storage tiering
D) VVOLS

Answer 2

Automatic storage tiering

Question 3

After performing the initial configuration of a new UnityVSA, when do alerts concerning license expiration first occur?

A) 7 days prior to expiration
B) 15 days prior to expiration
C) 1 month prior to expiration
D) 2 months prior to expiration

Answer 3

1 month prior to expiration

Question 4

Which Dell EMC UnityXT system user interface allows system administrators to create scripts for automating routine tasks?

A) Unisphere Central
B) UEMCLI
C) IPMI
D) Unisphere GUI

Question 5

What is used to create a Proxy NAS Server on a Dell EMC Unity array?

A) initCLI command
B) UEMCLI command
C) Unisphere GUI
D) Service command

Question 6

Which severity level alerts for a fault condition that has occurred, has minor impact on the system, and does not need to be fixed immediately?

A) Critical
B) Notice
C) Error
D) Warning

Question 7

A storage administrator wants to asynchronously replicate a compressed LUN from the primary site to a Unity at the secondary site. Which statement describes this operation?

A) Replication of compresses data is controlled by the bandwidth throttle setting.  
B) By default, replication compresses data sent to the destination.
C) The source data is uncompressed, then replicated to the destination.
D) The source data is replicated to the destination, then uncompressed.

Question 8

Which Dell EMC Unity XT storage resource allows modification of its block size during creation?

A) VVol file datastore
B) VMFS datastore
C) VVol block datastore
D) NFS datastore

Question 9

Which operation can be performed on the General tab of the LUN Properties page?

A) Extend the LUN
B) Grant Host access
C) Replicate the LUN  
D) Set Host I/O limits

Question 10

A company plans to add five drives to a 30 drive SAS Flash 4 All-Flash pool on a Dell EMC Unity XT 600 storage array. Which drive type(s) can be used for the expansion?

A) SAS Flash 2 and SAS Flash 3 only
B) SAS Flash 4 only
C) SAS Flash 3 and SAS Flash 4 only
D) Any SAS Flash drive type

Question 11

A Unity storage system is installed with 10 Gb optical SFPs in CNA ports 4 and 5 of both Storage Processors. The storage administrator has had a request from a user to connect to the storage system through Fibre Channel. How can the administrator reconfigure the CNA ports for 16Gb Fibre Channel SFPs?

A) Configure all CNA ports for 16Gb Fibre Channel
B) Configure CNA port 4 of SPA and SPB as 10Gb optical Configure CNA port 5 of SPA and SPB as 16 Gb Fibre Channel
C) Configure CNA port 4 and 5 of SPA as 10 Gb optical Configure CNA ports 4 and 5 of SPB as 16 Gb Fibre Channel
D) CNA ports cannot be reconfigured once they are committed

Question 12

The soft limit quota for a file system has just been exceeded. What would you expect to occur concerning data access?

A) Once the soft limit is reached, the grace period counts down until the hard limit is reached. New data can be written as long as the hard limit has not been reached.
B) Once the soft limit is reached, no new data can be added to the file system or directory.
C) If the soft limit remains exceeded and the grace period expires, no new data may be added to the particular file system or directory.
D) If the soft limit remains exceeded and the grace period expires, new data may be added to the particular directory. The system will alert the grace period expired.

Question 13

A company needs to expand their dynamic pool by 5 TB. The current dynamic pool consists of sixty-three 3.8 TB SSD that are configured for RAID5 4+1. What is the minimum number of drives needed for the pool expansion?

A) 1
B) 6
C) 7
D) 8

Question 14

A storage administrator is tasked with creating a DR solution for block and file storage resources. The company has multiple regional and international sites containing a mix of physical and virtual Dell EMC Unity systems. What are considerations for the storage administrator in creating the DR solution?

A) Synchronous remote replication should be restricted to within 100 km between sites to keep latency below 10 ms Block storage resources can be replicated synchronously and asynchronously
B) Asynchronous replication ensures zero data loss the remote replica in disaster conditions
C) Asynchronous replication over long-distance does not impact latency Asynchronous replication ensures zero data loss to the remote replica in disaster conditions
D) File and block storage resources can be replicated synchronously and asynchronously

Question 15

Which disk format is recommended for Dell EMC Unity's OVA?

A) Thick Provision Lazy Zeroed
B) raw
C) Thick Provision Eager Zeroed
D) Thin Provision

Question 16

What is the maximum number of file system snapshots that are supported by Unity?

A) 16
B) 96
C) 256
D) 512

Question 17

What is a characteristic of FAST VP?

A) User can enable or disable FAST VP at the LUN level
B) FAST VP optimizes data placement by moving 1GB slices between disk tiers
C) Once enabled, FAST VP data relocation runs in background runs in background at all times
D) User can set the FAST VP data relocation rate

Question 18

Which Dell EMC Unity model(s) supports the 12 Gb/s SAS I/O module?

A) All Dell EMC Unity models
B) Dell EMC Unity 600/650F only
C) Dell EMC Unity 500/550F and Dell EMC Unity 600/650F only
D) Dell EMC Unity 400/450F, Dell EMC Unity 500/550F, and Dell EMC Unity 600/650F only

Question 19

A system administrator has placed the Storage Processor (SP) in Service Mode for maintenance. Using Unisphere, they notice the mode field for the SP still displays both SPs as normal. What is another indicator the administrator can check to verify that the SP is in Service mode?

A) SP Fault LED is solid blue  
B) Unsafe to remove LED is lit
C) SP Fault LED blinks alternating amber and blue
D) DPE Chassis Fault LED is solid amber

Question 20

What is the default NFS host access option?

A) No Access
B) Read/Write, Allow Root
C) Read-Only
D) Read/Write

Question 21

According to best practices, what is the maximum latency of the link between local and remote systems when using synchronous replication?

A) 5 ms
B) 10 ms
C) 20 ms
D) 40 ms

Question 22

When creating a new LUN on a Dell EMC Unity array using Unisphere, what is the default setting of the Data Reduction feature?

A) OFF for thick LUNs and ON for thin LUNs
B) ON for thick LUNs and OFF for thin LUNs
C) ON for thin LUNs in an All-Flash pool
D) OFF for thin LUNs in an All-Flash pool

Question 23

What is a characteristic of the IP Packet Reflect feature running on a Dell EMC Unity NAS Server?

A) SP must be rebooted after the feature is enabled on the NAS Server
B) Outbound packets use the same interface as the inbound packets
C) Communications initiated by the array do not require route table lookups
D) Feature can only be enabled when the NAS Server is created via UEMCLI.

Question 24

The preferred production interface is active. What does the Dell EMC Unity XT system do once a NAS Server starts outbound traffic to an external service?

A) Selects interfaces based on advanced static routes
B) Uses Packet Reflect for outbound communication
C) Uses the active production interface
D) Selects the shortest path available

Question 25

What is the minimum requirement for a server to boot from a Dell EMC Unity XT storage system via iSCSI?

A) Hardware iSCSI HBA
B) TOE NIC
C) Software iSCSI
D) iSCSI Initiator

Question 26

A company has a VMware host installed with FC HBAs that is connected to a Dell EMC Unity XT storage array. A 500 GB LUN is provisioned to this host from the Unity array and is in production. The VMware administrator has configured a new vSwitch with the NICs on the server intended for iSCSI traffic. The storage administrator is asked to configure software iSCSI and provision a new 1 TB LUN from the storage array via iSCSI. What is a consideration when satisfying this request?

A) A connection must be established between the host iSCSI initiators and Unity iSCSI targets before provisioning the new LUN
B) Any single host should connect to any single array using one protocol only
C) The iSCSI configuration must use all the NIC connections to the host
D) Two iSCSI target interfaces must be configured with IP addresses from separate subnets

Question 27

A company with multiple remote offices has decided to use synchronous replication. What systems support this capability?

A) Dell EMC Unity XT and Dell EMC UnityVSA
B) Dell EMC UnityVSA only
C) Dell EMC UnityVSA and VNXe
D) Dell EMC Unity XT only

Question 28

In Unisphere, a storage administrator has inadvertently disabled Data Reduction on an existing LUN. What would result from this action?

A) A background LUN migration occurs, moving the data to a new LUN where it is inflated. New data is neither deduplicated nor compressed.
B) Existing data is left in its current state.
C) Existing data is dynamically inflated to its full size, undoing the impact of deduplication and compression.
D) Data Reduction, once enabled, cannot be disabled. New data is deduplicated or compressed.

Question 29

What is the default setting of Advanced Deduplication when Data Reduction is selected within Unisphere?

A) Disabled for thick LUNs and enabled for thin LUNs
B) Disabled for thin LUNs in an All-Flash pool
C) Enabled for thin LUNs in an All-Flash pool
D) Enabled for both thick and thin LUNs

Question 30

What is a consideration when specifying a Dial Home suppression time for a Dell EMC Unity XT storage array?

A) Can be lengthened or shortened
B) The time zone where the array is located
C) Should be set between 1 and 32 hours
D) Can be enabled at any time

Question 31

Which UEM/CLI command is used to verify the FC ports designated as synchronous on the SPs?

A) /remote/sys show -lc
B) /remote/sys show -detail
C) /remote/sys show -summary
D) /remote/sys show -sp

Question 32

What is a connectivity rule for a host that connects to multiple Dell EMC Unity systems?

A) Host must connect to all the arrays using a single protocol
B) Host can connect to different arrays with different protocols
C) iSCSI protocol is required to connect a host to multiple arrays
D) CNA connections to host must be used with alternating protocols

Question 33

What is the recommended configuration for iSCSI connections to ensure continuous access to the Dell EMC Unity XT storage system in the event of a failover?

A) Create iSCSI interfaces on different network ports on the same SP that are combined into a link aggregation
B) Set up iSCSI interfaces on the same port of each SP and leverage the host-based multi-pathing software
C) Set up iSCSI interfaces on the same port of each SP and configure advanced static routes for the interfaces
D) Create iSCSI interfaces on network ports on different SPs that are combined into a FSN logical device

Question 34

What is an example of a NAS Server replication session grouped operation?

A) Delete
B) Resume
C) Sync
D) Create

Question 35

A storage administrator configured a Hybrid Dell EMC Unity XT storage system using one default port containing three disk types. They need additional Flash capacity. What is the correct way to expand the pool?

A) Add a RAID Group of SAS Flash 4 drives to the pool
B) Add 2 SAS Flash drives to the FAST Cache
C) Add 1 SAS Flash drive to the pool
D) Add a RAID Group of SAS Flash drives to the pool

Question 36

How does Dell EMC Unity XT differ from Dell EMC UnityVSA?

A) Unity XT supports FAST VP only UnityVSA supports FAST VP and FAST Cache
B) Unity XT supports host I/O limits and monitoring and reporting UnityVSA supports monitoring and reporting only
C) UnityXT supports FAST VP and FAST Cache. UnityVSA supports FAST VP only
D) UnityXT supports monitoring and reporting only UnityVSA supports host I/O limits and monitoring and reporting

Question 37

A storage administrator is replicating a NAS Server from one Dell EMC Unity to another. The destination system has a different network scheme than their source system. What operation must be done on the destination system NAS Server to ensure data is accessible after failover?

A) No changes required
B) Change the Override properties
C) Create a new interface
D) Modify DNS Cache

Question 38

What storage resources can be provisioned to a host that is connected to a Dell EMC Unity XT storage system via Fibre Channel?

A) LUNs, CIFS shares, and Consistency Group LUNs
B) VMFS datastores, NFS datastores, and VVol(file) datastores
C) LUNs, Consistency Group LUNs, and NFS datastores
D) Consistency Group LUNs, VMFS datastores, and VVol (block) datastores

Question 39

A Storage administrator needs to expand their FAST Cache by 400 GB. The current configuration consists of two 400 GB SAS Flash 2 drives. What can be used to expand the FAST Cache?

A) Two 200 GB SAS Flash 2 drives
B) Two 400 GB SAS Flash 2 drives
C) Four 200 GB SAS Flash 3 drives
D) One 400 GB SAS Flash 2 drive

Question 40

What is maximum amount of time allowed when saving a configuration from the Collect Service Information menu from Unsphere in order to avoid a time-out?

A) 45 minutes
B) 60 minutes
C) 90 minutes
D) 120 minutes

Question 41

When the LUN Snapshot Restore operation is performed, what does the Unity system automatically do before beginning the restoration process?

A) Detaches the hosts from the snapshot
B) Creates a copy of the snapshot
C) Detaches the host from the LUN
D) Creates a snapshot of the LUN

Question 42

How is the Dell EMC Unity XT Data Reduction Ratio calculated?

A) Divide the predate-reduction size of all storage resources and their snapshots by the postdata-reduction size of all storage resources and their snapshots.
B) Add up the efficiencies gained from thin provisioning, Deduplication, and Compression.
C) Divide the predate-reduction size of all storage resources excluding their snapshots by the postdata-reduction size of all storage resources excluding their snapshots.
D) Add up the efficiencies gained from thin provisioning, Snapshots, and Compression.

Question 43

Which layer of the Dell EMC Unity XT storage architecture provides access to both the virtual storage pool and configured LUN resources?

A) Enclosure Services Interface
B) Common software
C) SCSI Enclosure Services
D) Communications Management interface

Question 44

What is a feature of Dell EMC UnityVSA systems?

A) All storage pools are hybrid
B) Data at Rest Encryption
C) All storage pools are dynamic
D) Asynchronous Replication

Question 45

How is a Local LUN Move initiated?

A) Select the LUN, then select the Pool to move the LUN into, then choose the Move operation
B) Choose the Move operation, then select a LUN, then select the Pool to move the LUN into
C) Select a LUN, then choose the Move operation, then select the Pool to move the LUN into
D) Select the Pool to move the LUN into, then choose the Move operation, then select a LUN

Question 46

Which IO modules are supported on the Unity 380/380F?

A) 25 GbE optical 12 Gb's SAS
B) 12 GB's SAS 10 GbE Base-T
C) 16 Gb's Fibre Channel
D) 6 Gb's SAS

Question 47

Which quota policy calculates disk usage in 8 KB units?

A) File Size
B) Block
C) User
D) Directory Tree

Question 48

What is the first step to configure asynchronous replication for a storage resource?

A) Set up management channel
B) Configure replication session
C) Verify replication connection
D) Create replication interfaces

Question 49

Which operation can be performed from the FAST VP settings section in the Unisphere Settings window?

A) Enable scheduled data relocation for a specific pool
B) Exclude pool from the data relocation schedule
C) Enable scheduled data relocation at the system level
D) View the data relocation progress between tiers

Question 50

What is the correct method to initiate a Dell EMC Unity XT power down sequence?

A) Use the uemcli halt command Use the uemcli halt command
B) Switch both Standby Power Supplies to OFF
C) Execute Shut Down Storage System in Unisphere Service Tasks
D) Click the Shut Down button in Unisphere system view

Question 51

What is an advantage for selecting Centralized ESRS over Integrated ESRS?

A) CloudIQ can be configured
B) Centralized ESRS is easier to configure
C) Deploying an external virtual machine is not required
D) Internet connectivity is not required for every Dell EMC Unity system

Question 52

Assuming that there are 240 snapshots created for the Base LUN on a Dell EMC Unity XT array, what is the maximum number of Thin Clones that can be created from that Base LUN?

A) 8
B) 16
C) 32
D) 64

Question 53

By default, the storage system transfers log information on which network port?

A) 138
B) 464
C) 514
D) 2049

Question 54

What is a consideration when expanding a dynamic pool?

A) Maximum number of drives is 16 in a RAID Group
B) Maximum number of slices in a private LUN is 256
C) Maximum number of drives is 64 in a drive partnership group
D) Minimum of drives in a RAID5 (4+1) RAID Group is 5

Question 55

Which Dell EMC Unity XT storage resource allows the modification of its block size during creation?

A) VVol (file) datastore
B) VMFS datastore
C) VVol (block) datastore
D) NFS datastore

Question 56

What determines the fault characteristics of a disk group?

A) Drive speed
B) Stripe width
C) Drive type
D) D@RE

Question 57

A storage administrator attempts to restart the Management Server to resolve Unsphere issues, but is unable to do so. What is a possible reason for this issue?

A) SP is in Reset and Hold mode
B) SP is in Maintenance mode
C) Both SPs are in Service mode
D) Only one SIP is in Service mode

Question 58

Refer to the exhibit. Where is the management port located on the Unity Storage Processor?

A) 1
B) 2
C) 3
D) 4

Question 59

What is an advantage of selecting Centralized ESRS over Integrated ESRS?

A) CloudIQ can be configured
B) Deploying an external virtual machine is not required
C) Centralized ESRS is easier to configure
D) Internet connectivity is not required for every Dell EMC Unity XT system

Question 60

The preferred production interface is active. What does the Dell EMC Unity XT system do once a NAS Server starts outbound traffic to an external service?

A) Uses the backup interface
B) Initiates NAS Server failover
C) Uses the active production interface
D) Enables Packet Reflect

Question 61

Which Dell EMC Unity XT model(s) supports the 12 Gb/s SAS I/O module?

A) All Dell EMC Unity XT models
B) Dell EMC Unity XT 600/650F only
C) Dell EMC Unity XT 500/550F and Dell EMC Unity XT 600/650F only
D) Dell EMC Unity XT 400/450F, Dell EMC Unity XT 500/550F, and Dell EMC Unity XT 600/650F only

Question 62

On a physical Dell EMC Unity XT system, what is the maximum size to which a UFS64 file system can be extended?

A) 32 TB
B) 64 TB
C) 128 TB
D) 256 TB

Question 63

A storage administrator is replicating a NAS Server from one Dell EMC Unity XT to another. The destination system has a different network scheme than their source system. What operation must be done on the destination system NAS Server to ensure data is accessible after failover?

A) No changes required
B) Change the Override properties
C) Create a new interface
D) Modify DNS Cache

Question 64

What is a consideration when designing a replication solution using the native Dell EMC Unity XT replication feature?

A) Asynchronous remote replication supports replication to up to two remote Dell EMC Unity XT systems
B) Synchronous remote replication supports replication to up to two remote Dell EMC Unity XT systems
C) Synchronous remote replication supports replication to up to one remote Dell EMC Unity XT systems
D) Asynchronous remote replication supports replication to up to one remote Dell EMC Unity XT systems

Question 65

A company has the following available drive types in their Dell EMC Unity XT 500 storage array: 1.2 TB SAS 2 TB NL-SAS 100 GB SSD 1.6 TB SSD 3.8 TB SSD What combination of drives can the company use to create a storage pool?

A) 2 TB NL-SAS and 100 GB SSD
B) 1.6 TB SSD and 3.8 TB SSD
C) 1.2 TB SAS and 1.6 TB SSD
D) 2 TB NL-SAS and 3.8 TB SSD

Question 66

What is a characteristic of the iSCSI interface on Dell EMC Unity XT storage arrays?

A) IQN aliases can be created optionally after the iSCSI interface is created.
B) IQN aliases are associated with an iSCSI interface.
C) IQNs are associated with a network port.
D) An iSCSI interface can be created with both an IPv4 and IPv6 IP address.

Question 67

A storage administrator is tasked with creating a DR solution for block and file storage resources. The company has multiple regional and international sites containing a mix of Dell EMC Unity XT and Dell EMC UnityVSA systems. What are considerations for the storage administrator in creating the DR solution?

A) Synchronous remote replication should be restricted to within 100 miles between sites to keep latency below 10 ms Block storage resources can be replicated synchronously and asynchronously
B) Asynchronous replication ensures zero data loss the remote replica in disaster conditions
C) Asynchronous replication over long-distance does not impact latency Asynchronous replication ensures zero data loss to the remote replica in disaster conditions
D) File and block storage resources can be replicated synchronously and asynchronously

Question 68

Dell EMC Unity XT systems collect several metrics at various time intervals and use ESRS to send the information to CloudIQ. What are those metrics and their time intervals?

A) Alerts = 5 min Performance = 5 min Capacity = 1 hr Configuration = 1 hr
B) Alerts = 2 min Performance = 1 hr Capacity = 1 hour
C) Capacity = 2 hour
D) Performance = 30 min

Question 69

A storage administrator is planning to move a NAS Server to the peer SP on a Dell EMC Unity XT system. The NAS Server and two of its associated file systems have active asynchronous replication sessions to a remote Dell EMC Unity XT system. How should the storage administrator proceed?

A) Manually pause the replication sessions for the NAS Server and file systems.
B) Set the RPO value to 1440 for the NAS Server and file system replication sessions
C) Set the RPO value to 0 for the NAS Server and file system replication sessions
D) Failover the replication sessions for the NAS Server and file systems

Question 70

A storage administrator is tasked with creating a DR solution for block and file storage resources on a Dell EMC Unity XT 650F system at a primary production site. The company has two other campus locations. Campus A is located 50 km away and has a Dell EMC Unity XT 400 Hybrid system. Campus B is located 200 km away and has a Dell EMC UnityVSA system. What should the storage administrator do to provide the best protection of storage resources while meeting recommended latency levels?

A) Replicate block storage resources synchronously to Campus A Replicate file storage resources asynchronously to Campus B
B) Replicate file storage resources synchronously to Campus A
C) Replicate block storage resources asynchronously to Campus A
D) Replicate block storage resources asynchronously to Campus B Replicate file storage resources asynchronously to Campus A

Question 71

What is a characteristic of the IP Packet Reflect feature running on a Dell EMC Unity XT NAS Server?

A) SP must be rebooted after the feature is enabled on the NAS Server
B) Outbound packets use the same interface as the inbound packets
C) Communications initiated by the array do not require route table lookups
D) Feature can only be enabled when the NAS Server is created via UEMCLI.

Question 72

Which Dell EMC Unity XT service task is used to reinstall the root operating system while leaving the existing data intact?

A) Restart the Management Software
B) Restart the Management Server
C) Reinitialize the Storage System
D) Reimage the Storage Processor

Question 73

Which Dell EMC Unity XT service task would most quickly resolve connection problems between the storage system and Unisphere?

A) Reinitialize the Storage System
B) Reimage the Storage Processors
C) Reboot the Storage Processors
D) restart the Management Software

Question 74

What is a consideration when implementing a Thin Clone on a Dell EMC Unity XT array?

A) Thin Clone is only supported on physical Dell EMC Unity systems.
B) Thin Clone can be expanded independently from the base LUN
C) Thin Clone can be created directly from the base LUN
D) Data Reduction can be enabled independently on source LUN and on Thin Clone

Question 75

Which feature is only supported on physical Dell EMC Unity XT systems?

A) Asynchronous Replication
B) Synchronous Replication
C) Host I/O Limits (QoS)
D) VVols

Question 76

On a Dell EMC Unity XT system, all hosts can be required to use which authentication method for iSCSI interfaces?

A) PAP
B) Kerberos
C) EAP
D) CHAP

Question 77

A user is setting up Dell EMC Unity XT network ports for connectivity between the NAS clients and NAS Servers. Which settings can be modified from the Ethernet Port Properties window in Unisphere?

A) Speed and MTU only
B) Speed, MTU, and port aggregation
C) Speed, MTU, and name of port
D) Speed and port aggregation only

Question 78

What is a connectivity rule for a host that connects to multiple Dell EMC Unity XT systems?

A) Host must connect to all the arrays using a single protocol
B) Host can connect to different arrays with different protocols
C) iSCSI protocol uses mixed host HBA and NIC connections
D) CNA connections to host must be used with alternating protocols

Question 79

On a Dell EMC Unity XT file system asynchronous replication session, how many system Snapshots, in total, are required to support replication?

A) 1
B) 2
C) 4
D) 8

Question 80

Two fans have failed on the SPE. How much time does the Dell EMC Unity XT system allow before the SP is shut down?

A) 2 min
B) 3 min
C) 4 min
D) 5 min