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Pure Storage FlashArray-Implementation-Specialist Exam Syllabus Topics:

TopicDetails
Topic 1
  • Upgrades: This section of the exam measures the skills of FlashArray Implementation Specialists and focuses on tasks involved in managing firmware and software upgrades. Candidates must demonstrate knowledge of upgrade planning, verification steps, and rollback procedures, ensuring that systems are updated with minimal disruption to service.
Topic 2
  • Pre-Installation
  • Upgrade: This section of the exam measures the skills of Enterprise Infrastructure Technicians and covers all preparation activities before deploying or upgrading a Pure Storage FlashArray. It includes understanding environmental requirements, verifying prerequisites, checking compatibility, and validating system readiness through appropriate tools and documentation.
Topic 3
  • Installation: This section of the exam measures the skills of Enterprise Infrastructure Technicians and focuses on executing a successful installation of FlashArray systems. It tests the ability to perform physical setup, cabling, configuration of network settings, and the application of initial system configurations necessary for full deployment.
Topic 4
  • Post-Installation
  • Upgrade: This section of the exam measures the skills of FlashArray Implementation Specialists and evaluates how professionals confirm system functionality after installation or an upgrade. It involves validating connectivity, running health checks, confirming configurations, and ensuring that the deployment meets operational expectations.

Pure Storage Certified FlashArray Implementation Specialist Sample Questions (Q18-Q23):

NEW QUESTION # 18
After running puredb run giveback --safe command once CT0 has been upgraded, how long should the Implementation Engineer wait before continuing with the controller upgrade?

Answer: A

Explanation:
After executing the puredb run giveback --safe command during a manual controller upgrade or specific non- disruptive upgrade (NDU) procedure, the Implementation Engineer must wait for 10 minutes before proceeding to the next step (typically upgrading the peer controller).
The giveback command instructs the recently upgraded controller (e.g., CT0) to resume its primary role and take back ownership of its assigned storage resources and I/O handling from the peer controller. This process triggers a failover event for the host multipathing software.
* Path Stabilization: The 10-minute wait time is a critical safety buffer mandated to ensure that all host- side multipathing drivers (MPIO) have successfully recognized the restored paths to the upgraded controller and have stabilized.
* Risk Mitigation: Proceeding too quickly-before the hosts have fully settled and paths are marked as
"Active/Optimized"-could lead to an "all paths down" (APD) scenario when the second controller is taken offline for its upgrade. This wait time verifies that the upgraded node is fully functional and carrying load, adhering to the strict "availability first" philosophy of FlashArray upgrades.


NEW QUESTION # 19
A customer has scheduled the installation of a FlashArray//X70R4. Core services such as DNS, NTP and SMTP are currently unavailable due to a network outage, but the Implementation Engineer proceeds with the installation as planned. What should the Implementation Engineer expect during the installation?

Answer: A

Explanation:
The puresetup initialization script includes a validation phase where it attempts to ping and resolve the addresses provided for DNS, NTP, and SMTP. If the network is down or these services are unreachable, the script will display error messages indicating that validation failed.
However, these failures are soft warnings, not hard blocks. The installation logic allows the Implementation Engineer to proceed with the configuration (often by acknowledging the warnings or using a specific flag to bypass checks). The array will successfully initialize, boot into Purity, and begin serving data.
The "Home" features (Phone Home, Remote Assist) and time synchronization will obviously not function until network connectivity is restored. The engineer must document this state and plan a follow-up task (or instruct the customer) to verify these services once the network outage is resolved. The array does not require reinitialization; it simply needs the network path to become active for the already-configured settings to start working.
=========


NEW QUESTION # 20
An Implementation Engineer is getting ready to install four DFMs into a 16-module efficiency bundle and notices that the new modules are DFMDs while the installed modules are DFMs.
What should the Implementation Engineer do to get the array using a 20-module wide write group?

Answer: C

Explanation:
Understanding the strict hardware boundaries of Pure Storage capacity expansion is critical. DirectFlash Modules (DFMs) and DirectFlash Modules with Distributed NVRAM (DFMDs) are fundamentally different hardware components. Standard DFMs contain only raw NAND flash and rely entirely on centralized, dedicated NVRAM modules located in the array chassis to protect write cache. DFMDs, however, feature their own onboard non-volatile memory to distribute the cache load across the capacity drives (primarily utilized in //XL and //XR4 architectures).
Pure Storage architecture explicitly dictates that drives operating within a single efficiency bundle or Wide Write Group (WWG) must be of the exact same hardware classification to ensure predictable parity calculation, wear leveling, and cache distribution. Mixing legacy DFMs with newer DFMDs within the same
20-module write group creates a severe hardware imbalance and is a strictly unsupported configuration.
While internal engineering tunables (like those suggested in Option A) occasionally exist to force overrides in lab environments, applying them in a customer's production array to bypass physical hardware incompatibility violates all implementation best practices. The only correct and safe action for the Implementation Engineer is to halt the physical installation, flag the Bill of Materials (BOM) mismatch, and work with the account
/logistics team to RMA the DFMDs and ship the correct standard DFMs.


NEW QUESTION # 21
What is the minimum supported capacity requirement for a FlashArray//XL170R5?

Answer: C

Explanation:
The Pure Storage FlashArray//XL170 R5 is the highest-tier array in the //XL lineup, engineered specifically for maximum performance density, aggressive OLTP database consolidation, and massive throughput.
Because of its incredibly powerful Intel processors and high-bandwidth PCIe Gen 4 architecture, it demands a specific minimum storage footprint. If an array has too few drives, the backend flash media becomes a bottleneck, effectively starving the controllers of I/O.
According to Pure Storage configuration limits and sizing tools, the minimum supported capacity requirement for an //XL170 R5 chassis is 135TB .
This minimum baseline is typically provisioned using three separate 45TB data packs (represented in official BOM configurations as 135TB-45/45/45/0). The //XL architecture relies exclusively on DirectFlash Modules with Distributed NVRAM (DFMDs). To properly distribute the write cache, maintain N+2 high availability across the flash media, and deliver the extreme IOPS expected of an //XL170, the chassis requires this robust baseline population of DFMDs. Attempting to deploy an //XL170 with a smaller capacity (such as 90TB) violates the performance sizing guidelines. Customers requiring smaller baseline capacities are generally steered toward the FlashArray//XL130 or the //X90 series.


NEW QUESTION # 22
FlashArray//C and //E models use which flash storage architecture, identifiable by gray tabs on the DirectFlash Module carriers?

Answer: B

Explanation:
Pure Storage differentiates its product lines based on the type of NAND flash used, optimizing for either performance or capacity/cost.
FlashArray//X uses TLC (Triple-Level Cell) flash for high performance and endurance. These modules typically have orange tabs.
FlashArray//C and FlashArray//E are designed for high-capacity, capacity-optimized workloads. They utilize QLC (Quad-Level Cell) flash.
QLC flash stores 4 bits per cell, offering higher density at a lower cost per terabyte, but with different endurance characteristics managed by the DirectFlash software. To help engineers and customers physically distinguish these modules, QLC DirectFlash Modules feature gray release tabs on the carrier. Identifying these tabs confirms that the correct media type is being installed into the capacity-oriented //C or //E chassis.
=========


NEW QUESTION # 23
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