D-UN-DY-23 Actual Questions Answers Pass With Real D-UN-DY-23 Exam Dumps
D-UN-DY-23 Dumps Prepare Your Exam With 38 Questions
EMC D-UN-DY-23 exam is a multiple-choice exam that consists of 60 questions. You will have 90 minutes to complete the exam and must achieve a passing score of 63% or higher to earn the certification.
NEW QUESTION # 13
A storage administrator has a Dell Unity XT 480 system with one pool of flash drives, 192 GB of RAM, and
1.2 TB of FAST Cache.
What is the total cache availability for caching the flash drives?
- A. I6.0 TB
- B. 3.2 TB
- C. 1.39 TB
- D. 3.58 TB
Answer: D
Explanation:
Explanation
The total cache availability for caching the flash drives on a Dell Unity XT 480 system with one pool of flash drives, 192 GB of RAM, and 1.2 TB of FAST Cache is 3.58 TB. This is calculated by adding the system memory (RAM), the FAST Cache, and the pool cache. The system memory is 192 GB, which is equivalent to
0.18 TB. The FAST Cache is 1.2 TB, which is a dedicated cache for the flash drives. The pool cache is 2.2 TB, which is a portion of the flash drives that is reserved for caching the pool data. Therefore, the total cache availability is 0.18 + 1.2 + 2.2 = 3.58 TB.
References: [Dell EMC Unity: Performance Metrics], [Dell EMC Unity: FAST Cache Overview]
NEW QUESTION # 14
On a Dell Unity XT file system asynchronous replication session, how many system Snapshots are required to support replication?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
Explanation
On a Dell Unity XT file system asynchronous replication session, four system Snapshots are required to support replication. Two system Snapshots are created on the source file system, and two system Snapshots are created on the destination file system. The source system Snapshots are used to track the changes that need to be replicated, and the destination system Snapshots are used to apply the changes and maintain a consistent point-in-time copy of the source data. The system Snapshots are automatically created and managed by the replication engine and are not visible to the user.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: File System Configuration]
NEW QUESTION # 15
What is the correct sequence of steps to provision storage for SMB NAS clients?
Answer:
Explanation:
Explanation
The correct sequence of steps to provision storage for SMB NAS clients is:
Group hard drives into storage pools. This allows you to create a pool of storage resources that can be allocated to different types of storage objects, such as NAS servers, file systems, and LUNs.You can create different pools based on the performance and capacity requirements of your applications1 Create a NAS server for an existing pool. A NAS server is a logical entity that provides file-level access to clients using SMB, NFS, or FTP/SFTP protocols. You need to create a NAS server before you can create file systems and shares.You can specify the pool, network settings, domain membership, and other properties for the NAS server2 Create file systems and file system shares based on the supported NAS protocol. A file system is a logical container that stores files and folders on a NAS server. A file system share is a logical representation of a file system that can be accessed by clients using a specific protocol. For SMB NAS clients, you need to create SMB file system shares that support the SMB protocol.You can configure the share name, permissions, access policies, and other settings for the SMB share3 Map the shared file system to the client. This allows the client to access the files and folders on the SMB share using a drive letter or a UNC path.You can use the Windows Explorer or the net use command to map the shared file system to the client4
NEW QUESTION # 16
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. 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. Two iSCSI target interfaces must be configured with IP addresses from separate subnets.
Answer: B
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 # 17
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 cannot be updated to the same absolute time.
- B. The Unity management server was not restarted before time zone changes took effect.
- C. The Unity system time is not set correctly and must be updated under system settings.
- D. Existing snapshot schedules are not updated to the same absolute time when the time zone is changed.
Answer: D
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 # 18
What is a benefit of using vVols?
- A. They enable the assignment of isolated file storage partitions.
- B. Individual VMs on a datastore can be snapped.
- C. All VMs on a datastore are snapped simultaneously.
- D. They enable the automatic import of capability profiles from vSphere to Unisphere.
Answer: B
Explanation:
Explanation
A benefit of using vVols is that individual VMs on a datastore can be snapped. vVols are virtual volumes that are stored on a storage array and managed by vSphere. They enable granular control and management of VM storage. With vVols, each VM has its own set of virtual disks that are mapped to corresponding storage objects on the array. This allows the array to perform snapshot operations on individual VMs without affecting other VMs on the same datastore.
References: [Dell EMC Unity: VMware vSphere Virtual Volumes (vVols) Implementation]
NEW QUESTION # 19
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
10 GbE Base-T - C. 32 Gb/s Fibre Channel
10 GbE Base-T - D. 12 Gb/s SAS
2-Port 100 GbE
Answer: B
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 # 20
Which firewall ports are required to be open for a successful outbound connection when configuring integrated secure connect gateway?
- A. 9443 and 443
- B. 443 and 8443
- C. 80 and 9443
- D. 80 and 443
Answer: B
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 # 21
Which is the preferred FC Port for synchronous replication for a Dell Unity XT 380 system?
- A. Fibre Channel Port 4 of SPA and SPB www*
- B. Port 1 of I/O module 0
- C. Port 0 of I/O module 1
- D. Fibre Channel Port 0 of I/O module 0
Answer: A
Explanation:
Explanation
The preferred FC Port for synchronous replication for a Dell Unity XT 380 system is Fibre Channel Port 4 of SPA and SPB. This port is dedicated for synchronous replication traffic and has the highest priority and bandwidth allocation. Synchronous replication is a method of replicating data between two Dell Unity systems with zero recovery point objective (RPO). It requires a low-latency and high-bandwidth network connection between the source and destination systems.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: Hardware Information Guide]
NEW QUESTION # 22
Which are two features of the Dell UnityVSA? (Choose two.)
- A. NVMe Connectivity
- B. FC Connectivity
- C. Dynamic Pools
- D. iSCSI Connectivity
- E. Asynchronous Replication
Answer: D,E
Explanation:
Explanation
The Dell UnityVSA is a software-defined storage solution that runs the Dell Unity operating environment on a VMware ESXi server. The Dell UnityVSA provides the same features and functions as the Dell Unity hardware platform, such as block and file storage, snapshots, thin clones, data reduction, replication, and encryption. Some of the features of the Dell UnityVSA are:
iSCSI Connectivity: The Dell UnityVSA supports iSCSI connectivity for block storage access. The iSCSI protocol enables hosts to communicate with the DellUnityVSA over an IP network and access LUNs as SCSI devices. The Dell UnityVSA can support up to 64 iSCSI interfaces and up to 256 iSCSI sessions per interface.
Asynchronous Replication: The Dell UnityVSA supports asynchronous replication for block and file storage. Asynchronous replication is a feature that copies data from a source storage resource to a destination storage resource over a network at scheduled intervals. Asynchronous replication can be used for disaster recovery, data migration, or backup purposes. The Dell UnityVSA can support up to
256 replication sessions per system.
References:
Dell EMC Unity: Introduction to the Platform
Dell EMC Unity: Deploying VMware vSphere with Dell EMC UnityVSA
Dell EMC Unity: Configuring Hosts to Access Block Storage
Dell EMC Unity: Replication Technologies
NEW QUESTION # 23
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. 5 min
- B. 17 min
- C. 7 min
- D. 15 min
Answer: B
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 # 24
Which disk format is recommended when deploying Dell UnityVSA OVA?
- A. Thin Provision
- B. Thick Provision Lazy Zeroed
- C. Thick Provision Eager Zeroed
Answer: C
Explanation:
Explanation
When deploying Dell UnityVSA OVA, the recommended disk format is Thick Provision Eager Zeroed, which allocates and zeroes out all the space for the virtual disks at the time of creation. This ensures better performance and avoids potential issues with thin provisioning on the underlying storage. Thin Provision and Thick Provision Lazy Zeroed are not recommended, as they may cause performance degradation and unexpected out-of-space errors.
References: [Dell EMC UnityVSA Installation Guide], [Dell EMC UnityVSA Best Practices Guide]
NEW QUESTION # 25
What is the purpose of a Proxy NAS server?
- A. Access snapshot replicas on the destination side of a replicated file resource.
- B. Increase security of production NAS servers.
- C. Access snapshots for testing 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 # 26
Which is the preferred FC Port for synchronous replication for a Dell Unity XT 380 system?
- A. Fibre Channel Port 4 of SPA and SPB www*
- B. Port 1 of I/O module 0
- C. Port 0 of I/O module 1
- D. Fibre Channel Port 0 of I/O module 0
Answer: A
NEW QUESTION # 27
What three VMware datastore types can be defined by using UI or CLI interfaces from the Dell Unity XT platform? (Choose three.)
- A. VMFS (Block)
- B. SMB
- C. NFS (File!
- D. RDM
- E. vVol (Block)
Answer: A,C,E
Explanation:
Explanation
VMware datastore is a logical container that holds virtual machine files and other data. There are three types of VMware datastore that can be defined by using UI or CLI interfaces from the Dell Unity XT platform:
vVol (Block): A vVol datastore is a block-based storage object that is formatted with the VMware Virtual Volumes (vVol) framework and used to store virtual machine files and metadata. A vVol datastore can be created by using the Unisphere UI or the UEMCLI interface on the Dell Unity XT system. A vVol datastore can provide granular control, policy-based management, and improved performance for virtual machines.
NFS (File): An NFS datastore is a file-based storage object that is formatted with the Network File System (NFS) protocol and used to store virtual machine files and other data. An NFS datastore can be created by using the Unisphere UI or the UEMCLI interface on the Dell Unity XT system. An NFS datastore can provide scalability, flexibility, and efficiency for virtual machines.
VMFS (Block): A VMFS datastore is a block-based storage object that is formatted with the VMware File System (VMFS) and used to store virtual machine files and other data. A VMFS datastore can be created by using the Unisphere UI or the UEMCLI interface on the Dell Unity XT system. A VMFS datastore can provide high performance, reliability, and compatibility for virtual machines.
References:
Dell EMC Unity: VMware ESXi Hosts and Clusters
Dell EMC Unity: Unisphere Overview
Dell EMC Unity: Unisphere CLI User Guide
NEW QUESTION # 28
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EMC D-UN-DY-23 exam is an excellent certification for IT professionals who want to demonstrate their expertise in Dell Unity storage systems. Dell Unity Deploy 2023 Exam certification is highly valued in the industry and is recognized by many organizations worldwide. By passing the EMC D-UN-DY-23 exam, candidates can demonstrate their knowledge and skills in deploying and managing Dell Unity storage systems, which can enhance their career prospects and help them stand out in a competitive job market.
EMC D-UN-DY-23 (Dell Unity Deploy 2023) Exam is an industry-standard certification that validates the skills and knowledge of IT professionals who are responsible for deploying and managing Dell Unity storage solutions. D-UN-DY-23 exam is designed to test the candidate's ability to plan, implement, and manage the Dell Unity storage infrastructure in a variety of environments, including virtualized and cloud-based environments. D-UN-DY-23 exam covers a wide range of topics, including Dell Unity architecture, installation, configuration, and management, as well as data protection and disaster recovery.
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