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Pure Storage FlashArray Storage Professional Exam Prep
Pure Certified FlashArray Storage Professional (Page 4 )

Updated On: 7-Oct-2026
Page 2 of 11
PDF with 75 Questions

A new array is directly connected to a host with Direct Attach Copper (DAC) cables. The link does not come up.

Which document can be used to help identify the issue?

  1. The FlashArray User Guide
  2. FlashArray Transceiver and Cable Support article
  3. The Port Usage and Definitions article

Answer(s): B

Explanation:

When physical links fail to establish--especially when using Direct Attach Copper (DAC) cables or Twinax--the most common culprit is a hardware compatibility mismatch. Pure Storage arrays have specific requirements for optics and cabling to ensure optimal signal integrity and performance.

The FlashArray Transceiver and Cable Support article (available on the Pure Storage Support portal) is the authoritative, verified resource for this scenario. It provides a comprehensive, constantly updated compatibility matrix detailing exactly which vendor DAC cables (e.g., Cisco, Brocade, Arista) and transceivers are officially validated and supported for use with specific FlashArray models and port types.

If an unsupported DAC cable is used, the switch or host bus adapter (HBA) on the array might simply refuse to bring the link up.

Here is why the other options are incorrect for this specific issue:

The FlashArray User Guide (A): This guide is excellent for day-to-day administration (volume creation, host grouping, etc.) but is too broad to contain granular, constantly updating hardware compatibility matrices for specific cables.

The Port Usage and Definitions article (C): This document explains the logical and physical purpose of the

ports on the back of the controllers (e.g., defining which ports are used for management, replication, or host connectivity), but it does not dictate hardware transceiver or cable interoperability.



When is it possible to simulate snapshot policies in the Pure1 Snapshot Policies (SafeMode)?

  1. When a FlashArray has existing snapshots
  2. When a FlashArray does not have existing snapshots
  3. When a FlashArray has an existing saved workload simulation

Answer(s): A

Explanation:

In Pure1, the ability to simulate snapshot policies--particularly when assessing the capacity requirements and impact of enabling SafeMode--heavily relies on historical telemetry data. Pure1 uses the data from existing snapshots on the FlashArray to calculate the environment's daily data change rate, as well as the deduplication and compression ratios specific to those workloads.

By analyzing the footprint of existing snapshots, Pure1's analytics engine can accurately project the future storage capacity required if you were to change your snapshot frequency or extend the retention period (for example, locking them down for 7 to 30 days under a SafeMode policy). If a FlashArray does not have any existing snapshots, Pure1 lacks the foundational baseline metrics needed to simulate and forecast the capacity impact of a proposed snapshot policy.



What command must an administrator run to use newly installed DirectFlash Modules (DFM)?

  1. pureadmin -- admit-drive
  2. purearray admit drive
  3. puredrive admit

Answer(s): C

Explanation:

When new DirectFlash Modules (DFMs) or data packs are physically inserted into a Pure Storage FlashArray, the Purity operating environment detects the new hardware but places the drives in an "unadmitted" state. This safety mechanism prevents the accidental incorporation of drives and allows the system to verify the firmware and health of the modules before they are actively used to store data.

To formally accept these drives into the system's storage pool so their capacity can be utilized, the administrator must execute the CLI command puredrive admit. Once this command is run, the drive status transitions from "unadmitted" to "healthy," and the array's usable capacity expands accordingly.

Here is why the other options are incorrect:

pureadmin -- admit-drive (A): This is syntactically incorrect. The pureadmin command suite is used for managing administrator accounts, API tokens, and directory services, not for hardware or drive management.

purearray admit drive (B): This is also incorrect syntax. While purearray is used for array-wide settings and status (like renaming the array or checking space), specific drive-level operations are exclusively handled by the puredrive command structure.



During a test failover using ActiveDR, what content will be presented to the target pod?

  1. The content from the last periodic refresh
  2. The content from the last real fail-over
  3. The content from the undo pod

Answer(s): C

Explanation:

ActiveDR is Pure Storage's continuous, near-sync replication solution. It differs fundamentally from standard asynchronous replication because it uses a continuous stream of data rather than snapshot-

based "periodic refreshes" (which eliminates Option A).

When you perform a test failover in ActiveDR, you do so by promoting the target pod. The target pod becomes writable, allowing your hosts and applications to run against the replicated data without disrupting the ongoing continuous replication from the source array in the background.

When the test is completed, you demote the target pod. To ensure that the data generated during your test failover isn't accidentally lost forever, ActiveDR automatically creates an undo pod at the exact moment of demotion.

If you need to resume that exact test failover scenario or recover the test data, you can re-promote the target pod and instruct ActiveDR to present the content from the undo pod. This unique mechanism allows storage administrators to seamlessly non-disruptively test, pause, and resume DR environments without affecting production protection.



What major benefit does meta fingerprinting provide for customers?

  1. Provides security for Remote Assist (RA)
  2. Ensures biometric security
  3. Enables predictive support

Answer(s): C

Explanation:

In the Pure Storage ecosystem, "Meta fingerprinting" refers to the core technology behind Pure1 Meta, which is Pure's cloud-based artificial intelligence and machine learning engine. Pure1 collects thousands of data points of telemetry (metadata) from all connected FlashArrays globally every day.

By analyzing this vast amount of telemetry data, Pure1 Meta creates workload signatures or "fingerprints." It then continuously compares your array's telemetry footprint against the global pool of arrays. The major benefit of this is that it enables predictive support. If Pure1 Meta detects that your array's fingerprint matches a known issue experienced by another array elsewhere in the world, Pure Storage can proactively alert you, open a support ticket, or recommend a Purity upgrade before you ever experience an outage or performance impact. It also uses these fingerprints for highly accurate capacity and performance forecasting.

Here is why the other options are incorrect:

Provides security for Remote Assist (RA) (A): Remote Assist allows Pure Support to log into your array for troubleshooting, but its security is based on a customer-initiated, secure outbound TLS connection (tunneling), not meta fingerprinting.

Ensures biometric security (B): This is a distractor. "Fingerprinting" in the context of Pure Storage refers to data and workload profiling, not human biometric authentication like physical fingerprint scanners.



A storage administrator has presented VMFS datastores from a FlashArray with 10TB of raw capacity.

Why would the administrator see system space when logging in to the FlashArray GUI?

  1. Virtual machines have not yet issued an unmap command.
  2. There is more than 2TB of reclaimable space on the FlashArray.
  3. More than 2TB of volume snapshots were destroyed.

Answer(s): B

Explanation:

On a Pure Storage FlashArray, "System Space" is a specific GUI-reported metric. Purity has a predefined, hidden internal space budget--typically around 20% of the raw mapped capacity (which would be 2TB on a 10TB array)--reserved for internal array operations. This budget covers RAID/parity overhead, metadata, and reclaimable space (data from deleted volumes, snapshots, or overwritten blocks that are waiting for the backend garbage collection process to fully erase them from the flash chips).

Normally, this internal overhead stays below the 20% budget, and "System Space" displays as 0.00 in the GUI. However, if an administrator deletes a massive amount of data at once, causing the reclaimable space to exceed that 2TB budget, the overflow is prominently displayed in the GUI as "System Space."

Here is why the other options are incorrect:

Virtual machines have not yet issued an unmap command (A): If a VMware VM deletes a file but the OS hasn't issued an UNMAP/TRIM command, the FlashArray is completely unaware that the data was deleted. Therefore, the array continues to report that capacity as standard Volume Space, not System Space.

More than 2TB of volume snapshots were destroyed (C): While destroying snapshots leads to reclaimable space, "reclaimable space" (Option B) is the specific, correct Purity architectural term and metric that the system uses to calculate the internal budget threshold.



What is the recommended Maximum Transmission Unit (MTU) size for the replication ports on a FlashArray?

  1. 4200
  2. 1500
  3. 9000

Answer(s): C

Explanation:

Pure Storage strongly recommends an MTU size of 9000 (Jumbo Frames) for replication networks--such as those used for Asynchronous Replication, ActiveCluster, and ActiveDR--as well as for iSCSI and NVMe/TCP data networks.

A 9000-byte MTU significantly reduces protocol overhead and CPU processing load on the storage controllers by allowing a much larger payload of data to be transmitted inside a single network packet. During heavy replication, this drastically increases throughput and maximizes bandwidth efficiency.

Here is why the other options are incorrect:

1500 (B): While 1500 bytes is the standard default MTU for Ethernet and is exactly what Pure Storage recommends for the management ports (vir0), it is not the recommended optimization for high- throughput replication traffic. (
Note: If your network cannot support 9000 end-to-end, 1500 must be used to prevent packet fragmentation, but 9000 remains the best-practice recommendation).

4200 (A): This is an arbitrary number and is not a standard network MTU size used in Pure Storage environments.



A FlashArray is configured to use directory services. A user is a member of the groups associated with both Array Admin and Storage Admin.

What will the user experience when logging into the array?

  1. Inability to login
  2. Storage Admin permissions
  3. Array Admin permissions

Answer(s): C

Explanation:

On a Pure Storage FlashArray, Role-Based Access Control (RBAC) allows administrators to integrate with Directory Services (like Active Directory or OpenLDAP) to control user access. Purity uses a specific hierarchy for its administrative roles, which from highest to lowest privilege are: Array Admin, Storage

Admin, Ops Admin, and Read Only.

When a user logs in and is found to be a member of multiple Active Directory or LDAP groups that are mapped to different roles on the FlashArray, Purity's behavior is designed to grant the user the highest level of permissions among those conflicting group mappings. Because the Array Admin role is higher in the hierarchy than the Storage Admin role, the user will successfully log in and be granted full Array Admin permissions.

Here is why the other options are incorrect:

Inability to login (A): Purity handles overlapping group memberships gracefully by defaulting to the highest privilege. It does not lock the user out or cause a login failure.

Storage Admin permissions (B): Because the system grants the highest available mapped privilege, the user will not be restricted to the lower-tier Storage Admin role when they also possess group membership for the Array Admin role.



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