選擇參加Pure Storage FlashArray-Storage-Professional 認證考試是一個明智的選擇，因為有了Pure Storage FlashArray-Storage-Professional認證證書後，你的工資和職位都會有所提升，生活水準就會相應的提供。但是通過Pure Storage FlashArray-Storage-Professional 認證考試不是很容易的，需要花很多時間和精力掌握好相關專業知識。Fast2test是一個制訂Pure Storage FlashArray-Storage-Professional 認證考試培訓方案的專業IT培訓網站。你可以先在我們的網站上免費下載部分部分關於Pure Storage FlashArray-Storage-Professional 認證考試的練習題和答案作為免費嘗試，以便你可以檢驗我們的可靠性。一般，試用Fast2test的產品後，你會對我們的產品很有信心的。
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>> 新版Pure Storage FlashArray-Storage-Professional題庫 <<
FlashArray-Storage-Professional 是一個占有一定比重的認證科目。由於人數太少，加上需求太大，導致擁有 FlashArray-Storage-Professional 認證的人成為薪酬最高的資訊技術專業認證人員。由於技能是本身擁有的，加上在全球範圍內的幾乎所有國家都有類似需求。所以，Pure Storage 的 FlashArray-Storage-Professional 認證為網路工程師打開了通往全球各地的大門。如果您通過了FlashArray-Storage-Professional 的考試，將證明你的專業技能和貢獻，展示你的知識與能力。如果你被認證為一個 FlashArray-Storage-Professional 網路公司的專家，你就會成為這個領域中最有知識的專家之一。
問題 #40
In reviewing space metrics via the Pure Management GUI, a storage manager notices the total reduction rate is much higher than the Data Reduction Rate (DRR).
What is the reason for this?
答案：A
解題說明：
Understanding Data Reduction Rate (DRR): DRR is a measure of the effectiveness of Purity's deduplication and compression algorithms. It compares the amount of data written by the host to the amount of physical space actually occupied on the flash media after these processes have occurred.
Calculation: $\text{DRR} = (\text{Deduplication} \times \text{Compression})$.
Understanding Total Reduction: The Total Reduction metric is a broader "efficiency" value. It represents the ratio of the Total Provisioned (logical) space to the Physical space used.
The "Thin Provisioning" Factor: The primary difference between these two numbers is Thin Provisioning.
FlashArrays are 100% thin-provisioned by default. If a customer creates a 100TB volume but the host only writes 1TB of data, the "Total Reduction" will be massive because it counts all that unwritten, "virtual" space as "saved." The DRR, however, only looks at the 1TB that was actually written and calculates how well it was compressed and deduped.
Why Option C is incorrect: Both metrics generally account for the efficiency of snapshots. However, snapshots contribute to DRR through deduplication (since they share blocks with the source volume). The massive gap between DRR and Total Reduction is almost always mathematically attributed to the "unwritten" space provided by thin provisioning.
Key Takeaway: If your DRR is 5-to-1 but your Total Reduction is 50-to-1, it means your data is compressing/deduping well, but you have also provisioned a significant amount of volume space that hasn't been written to yet.
問題 #41
A storage administrator is tasked with providing real-time data and alerts to the Network Operations Center (NOC) dashboard.
What source should the information come from to provide real-time data?
答案：C
解題說明：
To provide true real-time data and alerts directly to a Network Operations Center (NOC) dashboard, the information must be sourced directly from the FlashArray. The FlashArray's Purity operating environment natively supports real-time data streaming and alerting integrations via protocols like Syslog, SNMP traps, and the local REST API. Polling the array directly or configuring it to push alerts guarantees that the NOC receives instantaneous, up-to-the-second notifications regarding array health, hardware faults, and performance metrics.
Here is why the other options are incorrect:
Pure1 (B): While Pure1 is Pure Storage's powerful, cloud-based monitoring and predictive analytics platform, it relies on phone-home telemetry data. This telemetry is batched and transmitted from the array to the Pure1 cloud on a short polling interval (typically a few minutes). Because of this transmission and processing interval, Pure1 provides near-real-time (lagging by a few minutes) and historical data. It is excellent for global fleet management and predictive support, but not for instantaneous, zero-latency NOC alerting.
Pure Performance Monitoring (A): This is a distractor. There is no standalone product or specific protocol in the Pure Storage ecosystem officially named "Pure Performance Monitoring." Performance monitoring is simply a feature accessed via the FlashArray GUI/CLI or the Pure1 platform.
問題 #42
What command must an administrator run to use newly installed DirectFlash Modules (DFM)?
答案：A
解題說明：
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.
問題 #43
An administrator is setting up FA File using the FlashArray GUI. The company is an NFS only shop and needs to configure their remote user authentication.
Which of the following GUI locations should the administrator use to configure access?
答案：B
解題說明：
For FlashArray File Services (FA File), user authentication and mapping depend on the storage protocol being used. In an NFS-only environment, remote user authentication (resolving UNIX UIDs and GIDs to actual usernames and managing access) is typically handled via LDAP or NIS.
To configure this integration in the Purity GUI, the storage administrator must navigate to Settings > Access > Directory Services. This specific section allows the FlashArray to connect to a centralized directory server (such as OpenLDAP or even Active Directory providing LDAP services) to pull the necessary UNIX user and group attributes required for NFS file permissions to function properly.
Here is why the other options are incorrect:
Settings > Access > Create Active Directory Account (A): This specific menu path is used strictly for configuring native Active Directory (AD) computer accounts and joining the domain to support the SMB (Server Message Block) protocol. Since the scenario explicitly states the company is an "NFS only shop," configuring an SMB AD account is not the correct step.
Settings > Access > File System (C): While you manage file-level exports and policies within the Purity file interface, the global configuration for remote user authentication and directory server integration lives under the dedicated Directory Services pane.
問題 #44
What is the best practice for configuring VMFS UNMAP for ESXi 6.7 or later?
答案：C
解題說明：
What is UNMAP?: UNMAP (SCSI command 0x42) is the mechanism that allows a host (like ESXi) to inform the storage array that specific blocks of data are no longer in use (e.g., after a VM is deleted or moved). This is critical for Pure Storage because it allows the array to reclaim that space and maintain high data reduction ratios.
Evolution in ESXi: In versions prior to 6.5, UNMAP was a manual process executed via the CLI. Starting with ESXi 6.7, VMware introduced Automatic Space Reclamation, which runs in the background.
The Pure Storage Recommendation: Pure Storage recommends setting the reclamation priority to Auto with Low Priority.
Low Priority: This ensures that the UNMAP commands are sent to the FlashArray at a steady, manageable rate (roughly up to 25 MB/s to 100 MB/s depending on the Purity version). Because FlashArrays are built on a high-performance metadata engine, "Low Priority" is more than sufficient to keep up with even high-churn environments without causing any contention for active application I/O.
Why avoid High Priority (Option B)?: Setting it to high priority or using a fixed high-burst rate can lead to "bursty" SCSI traffic. While the FlashArray can handle the load, it is considered a best practice to keep background maintenance tasks like space reclamation at a lower priority to ensure the "Big Three" (latency, bandwidth, IOPS) for production workloads remain optimized.
Verification: You can verify that UNMAP is working by looking at the Data Reduction metrics in the Purity GUI or Pure1. If the "Thin Provisioning" or "Reclaimed" numbers are increasing after file deletions, the host is correctly communicating its freed space to the array.
問題 #45
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