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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshooting | 20% | - Upgrade and maintenance procedures - Resolving connectivity problems - System error handling and recovery - Diagnosing performance issues |
| Topic 2: FlashArray Files | 12% | - File access and sharing - File system deployment and configuration - File system management and optimization |
| Topic 3: Administration | 30% | - Volume and host provisioning - System configuration and management - User and access control - Network setup and integration |
| Topic 4: Monitoring | 20% | - Pure1 monitoring and analytics - Alert management and reporting - Performance monitoring and analysis |
| Topic 5: Data Protection | 18% | - Replication and disaster recovery - Data encryption and security - Snapshot technology and management |
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NEW QUESTION # 32
An X20R4 array containing 10 x 4.5TB DirectFlash Modules is running out of capacity. The customer found a data pack scheduled for a FlashArray//C array and has inserted it into the array. The customer is unable to admit the new capacity.
What is a possible reason for this?
Answer: A
Explanation:
Hardware Architecture (X vs. C): Pure Storage maintains two primary FlashArray lines: the FlashArray//X (performance-oriented) and the FlashArray//C (capacity-oriented).
Flash Types (TLC vs. QLC):
FlashArray//X (like the X20R4 mentioned in the question) uses TLC (Triple-Level Cell) DirectFlash Modules (DFMs). TLC provides high performance and high endurance, which is necessary for latency-sensitive mission-critical workloads.
FlashArray//C uses QLC (Quad-Level Cell) DirectFlash Modules. QLC provides significantly higher density at a lower cost per GB, but it has different performance and endurance profiles compared to TLC.
Compatibility Constraints: Purity//FA is designed to manage specific flash geometries. QLC modules are not compatible with the //X series arrays. The controller logic and software-defined flash management in an X20R4 are tuned for the voltage and timing characteristics of TLC flash.
The Admission Process: When a new data pack is inserted, the array performs a "handshake." If the controller detects a module type that it is not hardware-qualified to support (in this case, QLC in an //X chassis), it will refuse to admit the capacity to prevent system instability or data integrity issues.
Why Option A is incorrect: Modern FlashArrays (since the //M series) use NVMe over a PCIe backplane for DirectFlash Modules. Pure moved away from SAS (Serial Attached SCSI) for its primary data drives years ago to eliminate the performance bottlenecks associated with the SAS protocol.
Why Option C is incorrect: An X20R4 uses TLC flash. If the data pack were TLC, it would likely be compatible (provided it met the minimum module count and Purity version requirements).
NEW QUESTION # 33
What is unified storage for Pure?
Answer: C
Explanation:
Defining Unified Storage: In the storage industry, "Unified Storage" refers to a single storage platform that can simultaneously serve data over both block-level and file-level protocols.
The Pure Storage Approach: Historically, FlashArray was a high-performance block-only array. However, with the introduction of FlashArray File Services, Pure transitioned to a unified architecture. This means the same hardware (FlashArray//X, //C, or //XL) and the same management interface (Purity) handle both types of workloads.
Protocol Support:
Block Protocols: Fibre Channel (FC), iSCSI, and NVMe-over-Fabrics (NVMe-oF).
File Protocols: NFS (Network File System) and SMB (Server Message Block).
Why this is "Unified": * Shared Pool of Resources: Unlike older legacy systems that used "file gateways" or separate hardware heads for NAS, Pure's unified storage shares a single global pool of flash memory and deduplication metadata.
Ease of Management: Administrators don't need to manage two different systems. You can create a Volume (Block) or a File System (File) from the same "Add" menu in the GUI.
Why Options A and B are incorrect: * Option A only describes the File side of the equation.
Option B only describes the Block side of the equation.
Only Option C accurately captures the combination of both paradigms, which is the definition of "Unified."
NEW QUESTION # 34
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: A
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 # 35
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 # 36
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?
Answer: C
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.
NEW QUESTION # 37
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