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WorksheetsUnity Storage System Multiple Choice Questions
Total questions: 51
Worksheet time: 26mins
What is used by the Native SAN Copy Import data mobility feature?
SAN Copy funning on VNX
Common base Snapshots
SAN Copy running on Unity
Transparent Data Transfer
What block size do Dell EMC Unity systems use to copy highly accessed blocks of data from spinning drives into FAST Cache?
128 KB
32 KB
16 KB
64 KB
After installing a new Unity VSA, when do alerts concerning license expiration first occur?
7 days prior to expiration
15 days prior to expiration
1 month prior to expiration
2 months prior to expiration
What is the granularity of FAST VP when relocating data in the pool?
512 MB
1024 MB
256 MB
128 MB
What can be used by advanced users to create scripts for automating routine Unity tasks?
Unisphere GUI
Service CLI commands
CloudIQ
UEMCLI commands
Which Unity feature benefits oracle OLTP environments by improving storage utilization?
4 block formatting
increased SP Cache size
Automatic Storage tiering
VVOLS
What term refers to the link between a host initiator and a target port on a Dell EMC Unity XT storage system?
Initiator Path
Logical Path
Physical Path
Target Path
When connecting hosts to a Unity storage array, which protocols are supported?
FICON and iSCSIsss
Fibre Channel and FCoE
iSCSI and FCoE
iSCSI and Fibre Channel
Which Unity features use supported SAS Flash 2 drives to improve system performance?
Compression and FAST Cache
FAST Cache and FAST VP
QoS and FAST VP
QoS and Compression
A storage administrator wants to create a series of daily snapshots for an existing critical LUN. How can the snapshots be created?
Snapshot schedules can only be configured within the LUN Creation wizard
From the Pool Properties page configure the Snapshot schedule
only manually taken snapshots are supported on existing LUNs
From the LUN Properties page, configure the Snapshot schedule
Which disk format is recommended for Dell EMC Unity's OVA?
Thick Provision Lazy Zeroed
raw
Thick Provision Eager Zeroed
Thin Provision
What is the correct sequence of steps taken by the storage array during the synchronous replication process? Match the steps to their correct order:
Create destination resource and create write intent logs
STEP 1
Perform initial copy of source data to destination
STEP 2
Host writes to source then writes are replicated to destination
STEP 3
Destination acknowledges the write to the source
STEP 4
Source acknowledges the write to the host
STEP 5
Which Dell EMC Unity service task is used to reinstall the root operating system while leaving the existing data intact?
Restart the Management Software
Reimage the Storage Processor
Restart the Management Server
Reinitialize the Storage System
What is a consideration when designing a replication solution using the native Dell EMC Unity XT Replication feature?
Asynchronous remote replication supports replication to only one remote Dell EMC Unity XT system
Synchronous remote replication supports replication to only one remote Dell EMC Unity XT system
Synchronous remote replication supports replication to up to two remote Dell EMC Unity XT systems
Asynchronous remote replication supports replication to up to two remote Dell EMC Unity XT systems
What is the significance of the best practices recommendation to maintain 10% free capacity on a storage pool?
Provides enough space for drive failures
Allows enough capacity for Snapshots
Improves FAST Cache warmup times
Reduces cache flush times
What is the maximum number of SAS ports available on a Dell EMC Unity XT 680?
4
6
7
8
A storage administrator has set a soft quota of 20 GB and a hard quota of 25 GB on a die system. At what usage capacity will the administrator receive the first quota alert?
17 GB
18 GB
20 GB
22 GB
What is a characteristic of the iSCSI interface on Dell EMC Unity storage arrays?
Only one iSCSI interface can exist on a physical network port at a time.
IQN aliases are automatically generated.
A VLAN can only be assigned during the creation of the iSCSI interface.
IQNs are associated with an iSCSI interface.
A storage administrator has added multiple resources to a single density-based Host I/O Limit policy for the following storage resources: - LUN A: 100 GB - LUN B: 100 GB - LUN C: 600 GB - Density-Based Limit 10 IOPS What is the total IOPS set by this policy?
80
800
810
8,000
Under what conditions should fully provisioned storage be recommended?
Workloads requiring high throughput
Storage objects subject to snapshots
Storage objects subject to replication
Workloads requiring high bandwidth
Which UnityVSA storage resource can be configured with Host I/O limits?
NAS Server
Pool
File System
LUN
Dell EMC Unity 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?
Alerts = 5 min Performance = 5 min Capacity = 1 hr Configuration = 1 hr
Alerts = 2 min Performance = 1 hr Capacity = 1 hour Configuration = 1 hr
Alerts = 5 min Performance = 1 hr Capacity = 2 hour Configuration = 1 hr
Alerts = 2 min Performance = 30 min Capacity = 1 hr Configuration = 1 hr
A system administrator experienced a power failure in their environment. To which device will cache de-stage?
2 SSD on each Storage Processor
First four disks in the Disk Processor Enclosure
Cache does not need to de-stage as it is now non-volatile
Backup Battery Unit will keep the data alive in cache
What is the maximum storage capacity supported by a Dell EMC UnityVSA with the Community Edition subscription?
4 TB
10 TB
25 TB
50 TB
What describes multiple LUN snapshots?
Captures multiple point-in-time data states. Snapshot data state is marked "unmodified" from its source when attached. Snapshot tree supports multiple simultaneous attaches.
Captures multiple point-in-time data states. Snapshot data state is marked "unmodified" from its source when attached. Snapshot tree supports only one attach at a time.
Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports multiple simultaneous attaches.
Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports only one attach at a time.
Which storage pool object is created for every RAID group in a traditional pool?
Stripe Volume
MetaLUN
Pool Slice
Private LUN
A system administrator has deployed a Dell UnityVSA to their vSphere
environment. They did not add the management IP to the UnityVSA during the
installation.
What two actions can be taken to apply the management IP from the vSphere
console? (Select 2)
- Use the svc_network command to apply the IP address.
- Use the svc_inject command to apply the IP address.
- Use the svc_initial_config command with the Connection Utility.
- Use the svc_diag command with the Connection Utility.
- Use the svc_initial_config command to apply the IP address.
Which VVol object stores a copy of a VM's memory pages when the VM is powered on?
Config
Memory
Swap
Data
What storage resources can be provisioned to a host that is connected to a Dell EMC Unity XT storage system via Fibre Channel?
LUNs, CIFS shares, and Consistency Group LUNs
VMFS datastores, NFS datastores, and VVol(file) datastores
LUNs, Consistency Group LUNs, and NFS datastores
Consistency Group LUNs, VMFS datastores, and VVol (block) datastores
Which step must be completed prior to performing the initial configuration of a UnityVSA system and creating the first storage pool?
Create an ESXi host profile
License the system for NFS and SMB support
Add vDisks to the storage appliance
Install license keys for thin provisioning
A storage administrator is tasked with configuring a density-based Host I/O policy based on the following requirements: - Resource Size: 400 GB LUN - Density Limit: 15 IOPS What is the total IOPS set by this policy?
4000
6000
6500
8000
In which CloudIQ proactive health score category is CPU utilization monitored?
Capacity
System Health
Configuration
Performance
Which types of quota policies are used to calculate disk usage when implementing file system quotas?
Disk capacity, block
File size, disk capacity
Block, inode
File size, block
What is an example of a NAS Server replication session grouped operation?
Create
Sync
Resume
Delete
What can be used to initially configure a static management IPv6 address on a Dell EMC Unity array?
symcli
navisecCLI
uemcli
initCLI
A storage administrator wants to configure a system to join the list of arrays remotely monitoring for activity and system status using Central. The security policy on the Unisphere server is set to "automatic". What additional security information must be specified in the Unispered Settings window to enable communication with Unisphere Central?
Unisphere Central IP address and Central Hash
Unisphere Central IP address and login credentials Hash
Unisphere Central Hash and challenge phrase
Unisphere Central Hash and login credentials
What is one method that is used to verify an ESRS configuration?
Proxy server authentication
RSA authentication
Trigger an SNMP trap test
Send an e-mail verification
A system administrator has installed the Units' Connection Unity on a Microsoft Windows host. The Windows host is connected to the same physical subnet as a newly installed Unity storage system. When the utility is run, it does not discover any Unity storage systems. What should be checked on the host that may be preventing the utility from discovering any Unity storage systems?
Java SE version
Ethernet adapter flow control
Network Access Filter Driver
Host firewall services
What should be done prior to a Unity software upgrade to ensure that no underlying problems exist that may prevent a successful upgrade?
Check for ETAs
Perform a Health Check
Check for FCOs
Enable Service mode
When a storage resource has a snapshot taken of it, where are writes to the storage resource written?
New space allocated from the storage resource parent pool
New space allocated in 256 MB stripes from FAST Cache
Existing space of the storage resource
Existing space from the Reserves LUN Pool
What is a characteristic of host Fibre Channel initiators?
Can only have one path to a Unity SP
Must have a FCoE connection to the Unity target port
Can be associated with multiple initiator paths
Can only have a connection to one Unity SP front-end port
What is the significance of Multi-Path software on a SAN host?
Manages the connections between host and storage to maintain storage access if one of
the connections fails
Allows data migrations to Unity by splitting host IOs from an original source array to a
target Unity array
Provides the host access to both the source and destination storage resource when that
resource is replicated remotely
Enables a host to access snapshot point-m-time data states to recover data without
administrative intervention
When is it safe to swap a Storage Processor (SP) when performing a Data in Place upgrade?
SP fault and power lights on both SPs are off Amber fault LEDs on both power supplies are off
SP fault and power lights on both SPs are blinking at 1Hz Amber fault LEDs on both power supplies are lit
SP fault and power lights on both SPs are off Amber fault LEDs on both power supplies are lit
SP fault and power lights on both SPs are solid amber Amber fault LEDs on both power supplies are off
Which Unity models allow for the addition of a 12 Gb/s SAS SLIC?
Unity 300 and Unity 400
Unity 400 and Unity 500
Unity 400 and Unity 600
Unity 500 and Unity 600
A user has deployed an OVA template, leaving the System Name and both the IPv4 and IPv6 management settings blank on the Customize Template page. What can be used from a vSphere Console session to assign a static IPv4 address to the unconfigured UnityVSA management interface?
svc_arrayconfig command
InitCL
exe tool
Connection Utility
svc_initial_config command
What is the maximum number of file system snapshots that are supported by Unity?
512
256
16
Using the fan-out topology, what is the maximum number of sites a resource can be replicated to asynchronously?
2
4
6
8
How long before a license expires will UnityVSA send the first alert warning?
3 days
7 days
15 days
1 month
On which storage objects is Unity compression supported?
VMFS datastores and Wols
Thick LUNs and Wols
Thin LUNs and VMFS datastores
Thin LUNs and Thick LUNs
What is the minimum VMware Hypervisor version a server must be running in order to support the deployment of a UnityVSA system?
4.0
5.0
5.5
6.0
Which feature is supported on a UnityVSA operating environment?
Asynchronous Replication
MCC Write Caching
Quick Start Pool Provisioning
Data at Rest Encryption
