Pass Your Next D-UN-DY-23 Certification Exam Easily & Hassle Free [Q79-Q100]

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Pass Your Next D-UN-DY-23 Certification Exam Easily & Hassle Free

Free EMC D-UN-DY-23 Exam Question Practice Exams

Q79. A company has several LUNs being accessed by VMware ESXi over iSCSI.
How can they minimize the resulting impact on performance?

Configure the ESXi host for Round Robin Path Selection with IOPS limit of 2

Configure the ESXi host to send an ACK for every other full-sized data segment

Enable “DelayedACK” on the ESXi host

Disable “DelayedACK” on the ESXi host

Q80. 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

Q81. When can a file system be defined as thin or thick?

Only when creating the file system

Any time after the file system has been created

Only when adding host access to the file system

Only when enabling data reduction on the file system

Q82. On a Dell EMC Unity system, all hosts can be required to use which authentication method for iSCSI interfaces?

Kerberos

EAP

PAP

CHAP

Q83. Which Unity mode(s) supports the 17 Gb/s SAS I/O modulo?

Unity 500 and Unity 600 only

Unity 600 only

Unity 400. Unity 500, and Unity 600

All Unity models

Q84. What does the Dell Unity XT system do after a NAS server starts outbound traffic to an external service?

Uses the active production interface

Creates an active interface buffer cache in DRAM

Selects interfaces that are based on advance static routes

Uses Packet Reflect for outbound communication

Q85. 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

Q86. A Thin Clone has just been created.
What operation can be performed on it?

Increase its size.

Change FAST VP Policy

Change Data Reduction setting

Change SP ownership

Q87. Which Unity service task is used to reinstall the root operating system while leaving the user’s data intact?

Restore the Management server

Reimage the Storage Processor

Restore the Management software

Reinitialize the storage system

Q88. What are four constraints defined in a VMware Capability Profile?

Service Level, Drive Type, RAID Level, and Space Efficiency

Protocol Endpoint, Drive Type, RAID Level, and VM UUID

Service Level, Access, Protocol, and Space Efficiency

Capacity, Drive Type, RAID Level, and Data Reduction

Q89. When creating a NAS Server replication session, which settings are required for the destination NAS Server?

Name. Pool, and Storage Processor

Interface configuration, Pool, and Storage Processor

Pool, RPO, and Storage Processor

Name, interface configuration, and RPO

Q90. A company needs to expand their dynamic pool by 10 TB. The current dynamic pool consists of 63 7.6 TB SSD drives that are configured for RAID 5 (12+1).
What is the minimum number of drives needed for the pool expansion?

Q91. What is supported on Unity with CTA integration?

Remote backup

Disaster recovery

Data migration

Data tiering

Q92. A storage administrator needs to perform a Snapshot Restore operation on a LUN provisioned to a host.
Which steps are taken prior to performing the Snapshot Restore operation?

Delete any additional LUN snapshots
Complete and quiesce host I/O to the LUN
Disconnect the host from the LUN

Detach any other hosts from the LUN snapshots
Complete and quiesce host I/O to the LUN
Attach the host to the LUN snapshot

Delete any additional LUN snapshots
Complete and quiesce host I/O to the LUN
Make the LUN snapshot read-only

Detach any other hosts from the LUN snapshots
Complete and quiesce host I/O to the LUN
Disconnect the host from the LUN

Q93. A Unity system LUN has a daily snapshot schedule with a Retention Policy of seven days. A hardware failure results in a double fault of the LUN.
Which snapshot behavior will be experienced?

All of the snapshots will be unavailable to restore data from

Data restoration is available from the oldest snapshot, all others are unavailable

All of the snapshots will be available to restore data from

Data restoration is available from the newest snapshot, all others are unavailable

Q94. What is the significance of the best practice recommendation of maximizing Flash capacity?

Fully utilizes all cores of the multi-core CPUs

Speeds up FAST Cache warmup

Increases sequential IO throughput

Lowers maintenance downtime

Q95. Multiple 1/0 modules must be installed in Dell Unity XT 680 storage.
Which module must be installed in slot 0?

4-Port 10 Gbps Ethernet.

12 Gb/s SAS back-end

4-Port 25 Gbps Ethernet
D 4-Port 16 Gb Fibre Channel

Q96. At which stage in the Unity power up sequence would the Storage Processor enter Service mode upon detecting an error?

After the CMI is started

Bootflash

POST

BIOS

Q97. What component is a hot-pluggable CRU?

DPE BBU

25 drive DPE cooling module

80 drive DAE cooling module

DPE I/O module

Q98. When an Active replication session state indicates normal operations, what is the sync state of the source and destination resources?

Syncing

In Sync

Consistent

Running

Q99. What is the significance of Protocol Endpoints provided by Unity for VMware?

Provide a write consistent view to the host when accessing multiple Unity datastores

Manage host IO workload balance between multiple paths to the storage

Enable transparent host attach operations to Snapshots of Wol datastores

Establish a datapath between the ESXi host and the respective Wol datastores

Q100. On a Dell Unity XT file system asynchronous replication session, how many system Snapshots are required to support replication?

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