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>> FlashArray-Storage-Professional Valid Exam Preparation <<
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NEW QUESTION # 23
A network admin is trying to setup Pure1 access and phone home logging on the array.
What port should the admin ensure is opened for the array?
Answer: B
Explanation:
Pure1 and Phone Home: Pure1 is a cloud-based management and monitoring platform. For the FlashArray to communicate its health data, performance metrics, and alerts to Pure Storage, it must be able to "Phone Home." The Power of HTTPS: This communication is encrypted and sent via the HTTPS protocol. Consequently, the standard port for HTTPS, TCP 443, must be opened for outbound traffic on the management network.
Firewall Configuration: The array controllers initiate an outbound connection to the Pure Storage cloud (specifically to destinations like cloud-connect.purestorage.com). Because it is an outbound-initiated connection, most stateful firewalls will allow the return traffic automatically once port 443 is permitted.
Why Option A is incorrect: Port 22 (SSH) is used for secure shell access to the array's CLI. While essential for local administration, it is not used for the automated Phone Home or Pure1 telemetry data stream.
Why Option B is incorrect: Port 8117 was historically used for the "Remote Assist" tunnel in older Purity versions. However, even for Remote Assist, modern Purity versions have transitioned to using port 443 to simplify firewall rules for customers. It is not the standard port for the general Phone Home/Pure1 logging service.
Verification: An administrator can verify connectivity by running the purearray test phonehome command in the CLI. If port 443 is blocked, the test will fail with a connection timeout.
NEW QUESTION # 24
Which storage protocol is best suited for a Hyper-V cluster in an ethernet-switched environment?
Answer: B
Explanation:
Protocol Compatibility: While NVMe-over-Fabrics (NVMe-oF) is the future of high-performance storage, support for it within specific hypervisor ecosystems varies. In the context of Microsoft Hyper-V, especially in older or standard Ethernet-switched environments, iSCSI remains the most mature, widely supported, and native protocol for block storage.
Ethernet Constraints: The question specifies an Ethernet-switched environment. This immediately rules out NVMe/FC (NVMe over Fibre Channel), as that requires dedicated Fibre Channel switching infrastructure and HBAs, not standard Ethernet.
NVMe/RoCE vs. iSCSI: While NVMe/RoCE (RDMA over Converged Ethernet) runs on Ethernet, it requires specialized NICs (RDMA-capable) and a specific switch configuration (PFC/LFC) to ensure a lossless fabric. Hyper-V has specific requirements for RoCE (often tied to SMB Direct for File services), but for general block storage volumes in a standard Ethernet environment, iSCSI is the "best suited" due to its ease of deployment, native Windows initiator support, and lack of requirement for specialized lossless hardware.
Pure Storage Best Practices: Pure Storage FlashArrays provide industry-leading iSCSI performance. When using iSCSI with Hyper-V, Pure recommends using the native Windows MPIO (Multi-Path I/O) with the "Least Queue Depth" policy to ensure optimal load balancing across the Ethernet fabric.
NEW QUESTION # 25
A storage administrator is troubleshooting a FlashArray that is critically low on space. They have successfully deleted and eradicated a large volume, but used space keeps increasing.
What is a possible cause?
Answer: A
Explanation:
Logical vs. Physical Reclamation: When an administrator "Eradicates" a volume, the FlashArray immediately removes the logical reference to that data. However, the physical blocks are not "wiped" instantly. Instead, those blocks are marked as "eligible for reclamation" by Purity's background Garbage Collection (GC) process.
Workload Prioritization: Purity is designed to prioritize Host I/O (production performance) over background system tasks. If the array is under an extremely high workload (high Load Meter percentage), Purity will automatically throttle the Garbage Collection process to ensure the application latency remains as low as possible.
The "Reclamation Lag": If the incoming write rate from the hosts (new data being written) exceeds the speed at which the throttled GC process can reclaim space from the eradicated volume, the "Used Space" metric will continue to trend upward. This is a common scenario when arrays are pushed to their performance or capacity limits simultaneously.
Why Option A is incorrect: The 24-hour safeguard applies to Destroyed volumes (the "Pending Eradication" bucket). Once an administrator manually clicks Eradicate, that safeguard is bypassed, and the space should logically be freed. If the space is still not reflecting as "Free," it is a back-end processing delay, not a timer delay.
Why Option C is incorrect: In the Purity Operating Environment, the array does not require the host to "unmount" or "disconnect" before it can reclaim space. Once the volume is destroyed and eradicated on the array side, those blocks are gone from the array's perspective, regardless of the host's state (though the host will likely experience I/O errors).
NEW QUESTION # 26
How are in-progress asynchronous snapshot transfers monitored from the UI?
Answer: C
Explanation:
According to official Pure Storage documentation regarding Asynchronous Replication management, while replication throughput (bandwidth) can be viewed globally on the Analysis tab, the actual replication status for in-progress snapshot transfers is tracked and monitored on the replication target.
To monitor an in-progress asynchronous transfer from the GUI, a storage administrator must log into the target FlashArray, navigate to Storage -> Protection Groups, and look at the Transfers section within the Protection Group Snapshots panel. This view explicitly details the time the replicated snapshot was created on the source, the time the transfer started, and the current progress of the snapshot being received. If a transfer is currently in-progress, the "Completed" column will remain blank until the snapshot is fully safely written to the target array.
Here is why the other options are incorrect:
From the replication source (C): While the source orchestrates the creation of the snapshot and initiates the data push, the granular transfer completion status and historical transfer logs of the incoming snapshots are tracked on the target's Protection Group interface.
From the either the replication source or target (B): Because the specific "Transfers" tracking panel for asynchronous protection group snapshots is located on the receiving end (target), monitoring the granular completion status cannot be done symmetrically from either side in the UI.
NEW QUESTION # 27
What should an administrator configure when setting up device-level access control in an NVMe/TCP network?
Answer: B
Explanation:
In any NVMe-based storage fabric (including NVMe/TCP, NVMe/FC, and NVMe/RoCE), the standard method for identifying endpoints and enforcing device-level access control is the NQN (NVMe Qualified Name).
The NQN serves the exact same purpose in the NVMe protocol as an IQN (iSCSI Qualified Name) does in an iSCSI environment, or a WWPN (World Wide Port Name) does in a Fibre Channel environment. It is a unique identifier assigned to both the host (initiator) and the storage array (target subsystem). When setting up access control on a Pure Storage FlashArray, the storage administrator must capture the Host NQN from the operating system and configure a Host object on the array with that specific NQN. This ensures that only the authorized host can discover, connect to, and access its provisioned NVMe namespaces (volumes).
Here is why the other options are incorrect:
VLANs (A): Virtual LANs are used for network-level isolation and segmentation at Layer 2 of the OSI model. While you might use a VLAN to separate your storage traffic from your management traffic, it is a network security measure, not a device-level access control mechanism for the storage protocol itself.
LACP (C): Link Aggregation Control Protocol (LACP) is a network protocol used to bundle multiple physical network links into a single logical link for redundancy and increased bandwidth. It has nothing to do with storage access control or mapping volumes to hosts.
NEW QUESTION # 28
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