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NEW QUESTION # 55
A FlashArray//C R4 has ports Eth0 and Eth1 connected to a switch using 100Gb/s Direct Attach Copper (DAC) cables. The administrator is unable to configure these ports for iSCSI services.
Why is this occurring?
Answer: C
Explanation:
On the Pure Storage FlashArray//C R4 (as well as the //XL and //E series architectures), the onboard 100Gb/s Ethernet LOM (LAN on Motherboard) ports-specifically eth0 and eth1-are purpose-built and strictly reserved for DirectFlash Shelf (DFS) connectivity.
Pure Storage uses these dedicated 100GbE ports to run NVMe over RoCE (RDMA over Converged Ethernet), effectively extending the array's internal PCIe backplane to additional backend storage shelves. Because these ports are hardcoded exclusively for back-end shelf expansion, the Purity operating environment fundamentally restricts them from being assigned IP addresses for front-end host I/O services. Therefore, an administrator will be completely unable to configure eth0 or eth1 for iSCSI, NVMe/TCP, or Replication. Front-end iSCSI services must instead be configured on the dedicated Host I/O PCIe cards (which typically appear as eth2, eth3, etc., depending on the slot configuration).
Here is why the other options are incorrect:
The ports are designated for Management connectivity (A): On modern FlashArrays, dedicated management ports are typically out-of-band 1GbE/10GbE RJ45 ports (often designated as vir0 or specific management eth ports on older hardware), not the ultra-high-speed 100Gb/s QSFP28 ports.
The DAC cables are not compatible with the array's ports (B): While incompatible cables can prevent a link from coming up physically, the specific reason the administrator cannot configure the ports for iSCSI in the Purity software is due to the port's hardcoded role (DFS), not the physical cable type.
NEW QUESTION # 56
An On-Premises ActiveCluster (AC) Mediator is installed on an ESXi server. The mediator was previously online but when the administrator checked the status of the ActiveCluster (AC) pods the mediator status was listed as "unreachable" for both FlashArrays in the ActiveCluster (AC) pair.
What is a possible cause of the mediator being unreachable from both FlashArrays?
Answer: A
Explanation:
The ActiveCluster Mediator (whether it is the Pure1 Cloud Mediator or the On-Premises VM) is a lightweight tie-breaker that communicates continuously with the management interfaces of both FlashArrays. If it was previously online and suddenly reports as "unreachable" from both arrays simultaneously, the issue is almost always caused by a network interruption or firewall rule change blocking the required communication ports between the arrays' management IP addresses and the Mediator VM.
If a network firewall is suddenly configured to drop or deny outbound TCP traffic (such as port 80/443 depending on the specific HTTP/HTTPS discovery and heartbeat configuration) from the FlashArrays to the ESXi-hosted Mediator, the arrays will fail to send their heartbeats, causing the mediator status to drop to "unreachable." Here is why the other options are incorrect:
Fibre Channel (FC) zoning or network access has not been created properly for the host (A): The Mediator is completely independent of the front-end host storage fabric (Fibre Channel or iSCSI). Host zoning issues would prevent the ESXi server from seeing its volumes, but it would not cause the FlashArrays to lose management network connectivity to the Mediator.
The mediator does not reside within a Pure datastore (B): This is actually a strict best practice and requirement. Pure Storage explicitly states that the On-Premises Mediator VM must be deployed in a separate (third) failure domain. It should not reside on the ActiveCluster mirrored datastore, because a site-wide SAN failure would take the mediator offline exactly when it is needed most. Therefore, not residing on a Pure datastore is the correct setup, not a cause for an outage.
NEW QUESTION # 57
In Pure Protect //DRaaS, the administrator modified the business policy used for backups, reducing the "DR Retention" from 7 days to 3 days. The DR target environment currently has 7 days of backups.
What will occur?
Answer: A
Explanation:
Policy-Driven Automation: Pure Protect //DRaaS (Disaster Recovery as a Service) is built on a declarative policy engine. When you define a business policy (Protection Group or similar policy-based management), the system's primary goal is to bring the environment into compliance with the "Desired State" defined by that policy.
Retention Enforcement: When the retention period is reduced (e.g., from 7 days down to 3 days), the Purity/Pure Protect engine identifies that any existing snapshots or backups older than the new 3-day threshold are now "out of policy." Immediate Reclamation: Unlike some legacy backup systems that only apply new retention settings to future backups, Pure Storage's policy-driven architecture typically triggers an immediate cleanup of the now-obsolete data to reclaim space on the target. This ensures the environment matches the modified policy requirements immediately upon the policy update.
SafeMode Considerations: If SafeMode is enabled on the target, these "erased" backups will actually move into the "Destroyed" (but not yet eradicated) bucket for the duration of the SafeMode timer, providing a safety net against accidental policy changes or malicious deletions. However, from the perspective of the active DR policy, they are removed.
NEW QUESTION # 58
Twelve stretched pods are synchronously replicating between an ActiveCluster (AC) FlashArray pair. A new unstretched pod is created and then is stretched, but the operation fails.
What is the most likely cause of the operation not completing successfully?
Answer: C
Explanation:
ActiveCluster Scalability Limits: Pure Storage FlashArrays have specific scalability limits regarding the number of "Active" or "Stretched" pods allowed per array or ActiveCluster pair. While these limits can vary slightly based on the Purity//FA version and the specific hardware model (e.g., //X, //XL, or //m), a common architectural limit in many Purity versions is up to 12 stretched pods.
The Scenario Analysis: In this case, the environment already has 12 stretched pods successfully replicating. When the administrator attempts to stretch a 13th pod, the operation fails because the array has hit the maximum concurrent stretched pod count supported by the Purity operating environment for that configuration.
Stretched vs. Unstretched: A pod exists locally (unstretched) without consuming an ActiveCluster pod "slot" in the same way. The failure specifically occurs during the "stretch" operation, which is the point where the synchronous replication relationship and mediator monitoring are established.
Resolution: To resolve this, the administrator would either need to:
Unstretch or Eradicate an existing pod that is no longer needed to free up a slot.
Check the specific Purity Release Notes for the hardware model to see if a firmware upgrade increases the maximum pod limit (some newer versions support more, but 12 is the classic threshold often tested in professional certifications).
NEW QUESTION # 59
What should an administrator configure when setting up device-level access control in an NVMe/TCP network?
Answer: A
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 # 60
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