[Apr-2024] D-UN-DY-23 Dumps Full Questions - Proven Professional Exam Study Guide

Exam Questions and Answers for D-UN-DY-23 Study Guide

EMC D-UN-DY-23 (Dell Unity Deploy 2023) Certification Exam is a comprehensive assessment of an individual's knowledge and skills in deploying and maintaining the Dell Unity storage system. D-UN-DY-23 exam is designed for professionals who are responsible for deploying, managing, and troubleshooting Dell Unity storage systems in enterprise environments. D-UN-DY-23 exam tests the candidates' understanding of the Dell Unity architecture, configuration, and management, including storage provisioning, data protection, and performance optimization.

The Dell Unity storage platform is becoming increasingly popular among organizations that want to streamline their data management and improve their storage efficiency. The Dell Unity Deploy 2023 certification provides IT professionals with an opportunity to demonstrate their proficiency in managing and deploying Dell Unity storage systems. Dell Unity Deploy 2023 Exam certification is recognized globally as a validation of the skills required to successfully install, configure, and manage Dell Unity storage systems.

EMC D-UN-DY-23 certification exam consists of 60 multiple-choice questions that need to be answered within 90 minutes. D-UN-DY-23 exam covers topics such as Dell EMC Unity architecture, installation and configuration, management and monitoring, and advanced features and functionality. Candidates who pass D-UN-DY-23 exam will be awarded the Dell EMC Unity Solutions Specialist certification, which is widely recognized in the IT industry and can help professionals advance their careers in storage administration and management.

 

NEW QUESTION # 10
In an asynchronous replication, what is the maximum number of replicated NAS servers supported for the Dell Unity XT 380 series?

• A. 0
• B. 1
• C. 2
• D. 3

Answer: A

Explanation:
Explanation
The maximum number of replicated NAS servers supported for the Dell Unity XT 380 series in an asynchronous replication is 126. This is the same as the maximum number of NAS servers supported for the Dell Unity XT 380 series in general. Asynchronous replication is a method of replicating data between two Dell Unity systems with a configurable recovery point objective (RPO). It allows the source system to continue normal operations without waiting for the destination system to acknowledge the completion of the replication.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: NAS Capabilities]

NEW QUESTION # 11
Which I/O modules does the Unity 380/380F system support?

• A. 32 Gb/s Fibre Channel
  2-Port 100 GbE
• B. 12 Gb/s SAS
  2-Port 100 GbE
• C. 12 Gb/s SAS
  10 GbE Base-T
• D. 32 Gb/s Fibre Channel
  10 GbE Base-T

Answer: C

Explanation:
Explanation
The Unity 380/380F system supports two types of I/O modules: 12 Gb/s SAS back-end and 10 GbE Base-T front-end. The 12 Gb/s SAS back-end module provides connectivity to the disk drives and expansion enclosures, while the 10 GbE Base-T front-end module provides network connectivity to the hosts and clients.
The Unity 380/380F system has four I/O module slots, two for each SP. The 12 Gb/s SAS back-end module must be installed in slot 0 of each SP, and the 10 GbE Base-T front-end module can be installed in slot 1 of each SP. Therefore, the correct answer is C. 12 Gb/s SAS 10 GbE Base-T. References:
Dell EMC Unity: Hardware Information Guide
Dell EMC Unity: Installation Guide

NEW QUESTION # 12
A company has an ESXi host installed with FC HBAs that is connected to a Dell 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 using iSCSI.
What is a consideration when satisfying this request?

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

Answer: A

Explanation:
Explanation
Mixing FC and iSCSI protocols for the same host and array is not supported by Dell EMC Unity. This can cause issues with multipathing, failover, and performance. The best practice is to use one protocol per host and array pair. If the host needs to access both FC and iSCSI LUNs from different arrays, then separate vSwitches and port groups should be used for each protocol. References: Dell EMC Unity: Best Practices Guide1, page
19.

NEW QUESTION # 13
Which two actions are recommended according to best practices when connecting iSCSI host to a Dell Unity XT system? (Choose two.)

• A. Manually register host on storage array.
• B. Interfaces should be on separate subnets.
• C. Use private network for iSCSI interfaces.
• D. Use standard NIC for iSCSI.

Answer: B,C

Explanation:
Explanation
Two actions that are recommended according to best practices when connecting iSCSI host to a Dell Unity XT system are to ensure that the interfaces are on separate subnets and to use a private network for iSCSI interfaces. These actions can improve the performance, security, and availability of the iSCSI network. Having interfaces on separate subnets can prevent broadcast storms, reduce network congestion, and enable multipathing. Using a private network for iSCSI interfaces can isolate the iSCSI traffic from other network traffic, reduce the risk of interference or attacks, and simplify the network configuration. Manually registering host on storage array and using standard NIC for iSCSI are not recommended actions, as they can introduce errors, inefficiencies, and limitations.
References: [Dell EMC Unity: iSCSI Configuration], [Dell EMC Unity: Best Practices Guide]

NEW QUESTION # 14
Which firewall ports are required to be open for a successful outbound connection when configuring integrated secure connect gateway?

• A. 443 and 8443
• B. 80 and 443
• C. 9443 and 443
• D. 80 and 9443

Answer: A

Explanation:
Explanation
The firewall ports that are required to be open for a successful outbound connection when configuring integrated secure connect gateway are 443 and 8443. Integrated secure connect gateway is a feature that enables secure remote access to the Dell Unity system through the Unisphere Central web portal. It requires an outbound connection from the Dell Unity system to the Unisphere Central server over the internet. Port 443 is used for HTTPS communication and port 8443 is used for WebSocket communication.
References: [Dell EMC Unity: Unisphere Overview], [Dell EMC Unity: Integrated Secure Connect Gateway]

NEW QUESTION # 15
What is the purpose of a Proxy NAS server?

• A. Access snapshot replicas on the destination side of a replicated file resource.
• B. Access snapshots for testing production NAS servers.
• C. Increase security of production NAS servers.
• D. Increase performance for shared network connections that access NAS servers.

Answer: A

Explanation:
Explanation
The purpose of a Proxy NAS server is to access snapshot replicas on the destination side of a replicated file resource. A Proxy NAS server is a temporary NAS server that is created on the destination system to mount a snapshot replica of a replicated file system. This allows the user to access the data on the snapshot replica for testing, recovery, or other purposes. A Proxy NAS server does not increase performance or security of production NAS servers, nor does it access snapshots for testing production NAS servers.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: File System Configuration]

NEW QUESTION # 16
Which are two ways to create an asynchronous replication session for a NAS server? (Choose two.)

• A. Use the NAS server wizard.
• B. Create replication connect.
• C. Create replication interface.
• D. Use NAS server properties.

Answer: A,D

Explanation:
Explanation
Two ways to create an asynchronous replication session for a NAS server are to use NAS server properties and to use the NAS server wizard. Both methods allow the user to select a source NAS server and a destination NAS server, and configure the replication settings, such as the RPO, the replication schedule, and the replication mode. Creating a replication connection or a replication interface are not ways to create an asynchronous replication session for a NAS server, but rather prerequisites for enabling replication between two Dell Unity systems.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: NAS Capabilities]

NEW QUESTION # 17
What is the maximum size of a drive partnership group when expanding a Dynamic Pool?

• A. 84 drives
• B. 96 drives
• C. 32 drives
• D. 64 drives

Answer: C

Explanation:
Explanation
A drive partnership group is a collection of drives of the same drive type that have been combined into a hidden dynamic pool object. Each drive within a dynamic pool can only be part of a single drive partnership group, and a drive will never change the drive partnership group. The maximum size of a drive partnership group is 32 drives, regardless of the drive type or size. When expanding a dynamic pool, the system will automatically create new drive partnership groups as needed, and distribute the drives evenly across the groups. The number of drive partnership groups in a dynamic pool is equal to the number of drives divided by
32, rounded up to the nearest integer. References: Dell Unity: Dynamic Pools2, page 5.

NEW QUESTION # 18
What are two prerequisites when creating host configuration for NFS client? (Choose two.)

• A. Network Address
• B. Hostname
• C. Subnet access
• D. Tenant information

Answer: A,B

Explanation:
Explanation
Host configuration is the process of defining the host properties and access permissions for a host that connects to the Dell Unity XT system. For NFS clients, the host configuration requires two prerequisites:
Network Address: The network address is the IP address or the subnet mask of the NFS client that identifies the host on the network. The network address is used to register the host on the Dell Unity XT system and to grant access to the NFS filesystems.
Hostname: The hostname is the name of the NFS client that is resolved by the DNS server or the local hosts file. The hostname is used to display the host information on the Unisphere UI and to enable host monitoring and alerting.
References:
Dell EMC Unity: Host Configuration
Dell EMC Unity: File System Configuration and Management

NEW QUESTION # 19
What is a characteristic of Host Groups?

• A. Hosts added to a host group must not have mapped block storage resources.
• B. Block storage resources addedlo a host group are accessible to all the member hosts
• C. Access to block storage resources must be set before adding hosts to a host group.
• D. Block storage resources attached to one of the member hosts are accessible to the entire host group.

Answer: B

Explanation:
Explanation
A characteristic of Host Groups is that block storage resources added to a host group are accessible to all the member hosts. A Host Group is a logical grouping of hosts that share the same access permissions and settings for block storage resources. By adding block storage resources to a host group, the user can simplify the management and allocation of storage for multiple hosts. Access to block storage resources does not need to be set before adding hosts to a host group, as the access permissions can be modified later. Hosts added to a host group can have mapped block storage resources, as long as they are not in conflict with the host group resources. Block storage resources attached to one of the member hosts are not accessible to the entire host group, unless they are also added to the host group.
References: [Dell EMC Unity: Host Configuration], [Dell EMC Unity: Block Storage Provisioning]

NEW QUESTION # 20
Which feature can be configured for a Dell Unity XT file system NFS share?

• A. Distributed File System
• B. Host Access Level
• C. Access-Based Enumeration
• D. Protocol Encryption

Answer: B

Explanation:
Explanation
A feature that can be configured for a Dell Unity XT file system NFS share is the Host Access Level. This feature allows the user to specify the access permissions for each host or host group that is allowed to access the NFS share. The access permissions can be set to Read/Write, Read Only, or No Access. The Host Access Level feature can be used to control the security and performance of the NFS share. Access-Based Enumeration, Protocol Encryption, and Distributed File System are features that can be configured for a Dell Unity XT file system SMB share, not NFS share.
References: [Dell EMC Unity: File System Configuration], [Dell EMC Unity: SMB Share Configuration]

NEW QUESTION # 21
Which snapshot option is set automatically when a Pool is configured?

• A. Total Pool Consumption
• B. Snapshot Pool Consumption
• C. Pool Automatic Deletion Policy

Answer: C

Explanation:
Explanation
The snapshot option that is set automatically when a pool is configured is the Pool Automatic Deletion Policy.
This option determines how the system handles the deletion of snapshots when the pool reaches a certain threshold of capacity utilization. The user can choose between three policies: Never Delete, Delete Oldest, or Delete LowestPriority. The Total Pool Consumption and the Snapshot Pool Consumption are not snapshot options, but rather metrics that show the amount of pool space consumed by the pool data and the snapshots respectively.
References: [Dell EMC Unity: Storage Pools and RAID Groups], [Dell EMC Unity: Snapshots and Thin Clones]

NEW QUESTION # 22
Which is the preferred FC Port for synchronous replication for a Dell Unity XT 380 system?

• A. Fibre Channel Port 0 of I/O module 0
• B. Port 1 of I/O module 0
• C. Fibre Channel Port 4 of SPA and SPB www*
• D. Port 0 of I/O module 1

Answer: C

NEW QUESTION # 23
A deployment engineer has changed theSchedule Time Zoneunder the Settings menu. However, existing snapshots schedules continue to run at the previously configured time.
Why is this occurring?

• A. Existing snapshot schedules are not updated to the same absolute time when the time zone is changed.
• B. Existing snapshot schedules cannot be updated to the same absolute time.
• C. The Unity system time is not set correctly and must be updated under system settings.
• D. The Unity management server was not restarted before time zone changes took effect.

Answer: A

Explanation:
Explanation
When the Schedule Time Zone is changed under the Settings menu, it only affects the display of the time zone and the creation of new snapshot schedules. Existing snapshot schedules are not automatically adjusted to the new time zone, and will continue to run at the same absolute time as before. For example, if a snapshot schedule was created to run every day at 10:00 AM inGMT+1, and the Schedule Time Zone was changed to GMT+2, the snapshot schedule will still run at 10:00 AM in GMT+1, which is 11:00 AM in GMT+2. To update the existing snapshot schedules to the new time zone, the administrator must edit each schedule manually and change the start time accordingly. References: Dell EMC Unity: Snapshots and Thin Clones1, page 16.

NEW QUESTION # 24
What is the maximum time difference allowed between the current system time (UTC) and the NTP server time during the initial configuration of a Dell Unity system?

• A. 7 min
• B. 5 min
• C. 17 min
• D. 15 min

Answer: C

Explanation:
Explanation
If the time difference between the current system (UTC) time and the NTP server time is too large (approximately 17 minutes), the user cannot configure an NTP server during initial configuration. The user will need to adjust the time while in "Set time manually" mode before changing to "Enable NTP synchronization". This is to avoid potential issues with data replication, snapshots, and audit logs that rely on accurate time stamps. References: Dell EMC Unity: How to change System Time from 'Set time manually' option to NTP2, page 1.

NEW QUESTION # 25
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