CertShikenは客様の要求を満たせていい評判をうけいたします。たくさんのひとは弊社の商品を使って、FlashArray-Storage-Professional試験に順調に合格しました。
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なぜ弊社は試験に失敗したら全額で返金することを承諾していますか。弊社のPure StorageのFlashArray-Storage-Professionalソフトを通してほとんどの人が試験に合格したのは我々の自信のある原因です。Pure StorageのFlashArray-Storage-Professional試験は、ITに関する仕事に就職している人々にとって、重要な能力への証明ですが、難しいです。だから、弊社の専門家たちは尽力してPure StorageのFlashArray-Storage-Professional試験のための資料を研究します。あなたに提供するソフトはその中の一部です。
質問 # 29
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?
正解：A
解説：
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.
質問 # 30
What does an asynchronous blackout window prevent?
正解：C
解説：
Definition of a Blackout Window: In Purity//FA, a Blackout Window is a scheduled period during which asynchronous replication is suspended. This is typically used by administrators to preserve WAN bandwidth during peak business hours or to prevent replication traffic from competing with high-priority local workloads (like a massive database batch job).
The "In-Progress" Rule: One of the most important characteristics of a blackout window is that it is non-disruptive to active transfers. If a replication job started at 7:55 AM and the blackout window begins at 8:00 AM, Purity will allow that specific transfer to continue until it finishes.
The Prevention Mechanism: Once the clock hits the start of the blackout window, the replication scheduler is effectively "paused." No new snapshots will be queued for transfer, and no new replication sessions will be initiated until the window expires.
Why Option A is incorrect: Purity does not kill active transfers. Abruptly stopping a transfer would waste the bandwidth already consumed and require the entire delta-set to be re-calculated or re-sent later.
Why Option B is incorrect: The phrasing is logically inconsistent; you cannot prevent something that "started before" the window from being "new" during the window.
Best Practice: When configuring blackout windows, ensure that the "clear" time (the time between windows) is long enough to allow the array to catch up on the snapshots that were queued during the blackout, otherwise, you risk triggering Alert 51 (Replication Delayed).
質問 # 31
A storage administrator is troubleshooting a FlashArray that is critically low on space. They have successfully deleted and eradicated a large volume, but used space keeps increasing.
What is a possible cause?
正解：C
解説：
Logical vs. Physical Reclamation: When an administrator "Eradicates" a volume, the FlashArray immediately removes the logical reference to that data. However, the physical blocks are not "wiped" instantly. Instead, those blocks are marked as "eligible for reclamation" by Purity's background Garbage Collection (GC) process.
Workload Prioritization: Purity is designed to prioritize Host I/O (production performance) over background system tasks. If the array is under an extremely high workload (high Load Meter percentage), Purity will automatically throttle the Garbage Collection process to ensure the application latency remains as low as possible.
The "Reclamation Lag": If the incoming write rate from the hosts (new data being written) exceeds the speed at which the throttled GC process can reclaim space from the eradicated volume, the "Used Space" metric will continue to trend upward. This is a common scenario when arrays are pushed to their performance or capacity limits simultaneously.
Why Option A is incorrect: The 24-hour safeguard applies to Destroyed volumes (the "Pending Eradication" bucket). Once an administrator manually clicks Eradicate, that safeguard is bypassed, and the space should logically be freed. If the space is still not reflecting as "Free," it is a back-end processing delay, not a timer delay.
Why Option C is incorrect: In the Purity Operating Environment, the array does not require the host to "unmount" or "disconnect" before it can reclaim space. Once the volume is destroyed and eradicated on the array side, those blocks are gone from the array's perspective, regardless of the host's state (though the host will likely experience I/O errors).
質問 # 32
What is the recommended Maximum Transmission Unit (MTU) size for the replication ports on a FlashArray?
正解：B
解説：
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.
質問 # 33
A FlashArray is set up with LDAP authentication. A user is a member of the groups associated with both Array Admin and Storage Admin.
What experience is expected for the user?
正解：B
解説：
Similar to the previous question regarding directory services, Pure Storage Purity OS handles Role-Based Access Control (RBAC) overlaps by granting the most permissive role available to the user.
When configuring LDAP or Active Directory authentication on a FlashArray, administrators map directory groups to specific FlashArray roles (Array Admin, Storage Admin, Ops Admin, Read Only). If a user happens to be a member of multiple LDAP groups that are mapped to different roles on the array, Purity evaluates all mapped roles and automatically assigns the user the highest level of privilege during their session.
Since "Array Admin" has full administrative rights over the entire array (including hardware management, directory services configuration, and firmware upgrades) and sits higher in the hierarchy than "Storage Admin" (which is restricted to provisioning and managing storage objects like volumes and hosts), the system will seamlessly grant the user Array Admin permissions.
Here is why the other options are incorrect:
User will not be able to login (B): Purity is designed to handle this exact scenario smoothly. It resolves the conflict by defaulting to the higher privilege, rather than throwing an error or denying access.
User will have Storage Admin permissions (C): The system does not default to the lowest privilege or restrict access when a higher-level group membership is present and valid.
質問 # 34
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業界の他の製品と比較して、FlashArray-Storage-Professional実際の試験の合格率は高くなっています。本当に試験に合格したい場合、これはあなたが最も感じさせるものでなければなりません。当社は、コンテンツやサービスなどのさまざまな側面からこの合格率を保証します。もちろん、ユーザーのニーズも考慮します。FlashArray-Storage-Professional試験問題は、すべてのユーザーが夢を実現するのに役立つことを願っています。 FlashArray-Storage-Professionalスタディガイドの99％合格率は、私たちにとって非常に誇らしい結果です。 FlashArray-Storage-Professional学習ガイドを今すぐ購入してください。お手伝いします。すぐにそれが信じられます、あなたは成功した人です！
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