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NEW QUESTION # 104
What is the minimum bandwidth requirement for replicating volumes between PowerFlex clusters?
Answer: C
Explanation:
100 Mbps: While PowerFlex replication is highly efficient and only sends unique data chunks (deltas), the supported minimum reliable bandwidth for a WAN link between clusters is typically
100 Mbps.
Reasoning: Below this speed, even moderate change rates in a production database would likely cause the replication journal to fill up faster than data can be drained to the remote site. This would lead to a "Buffer Full" state, causing the replication to pause or the system to lose its Recovery Point Objective (RPO) compliance.
NEW QUESTION # 105
Which management interface is used for day-to-day operations of PowerFlex?
Answer: C
Explanation:
Note: In the context of PowerFlex exams, there is often a distinction between "Lifecycle Management" (PowerFlex Manager) and "Block Storage Operations" (GUI/Presentation Server).
* GUI (Option C): The PowerFlex Web UI (often accessed via the Presentation Server or the unified dashboard in v4) is the primary tool for Day-to-Day tasks. This includes mapping volumes to hosts, taking snapshots, monitoring IOPS, and checking capacity usage. It provides the visual topology of the storage.
* PowerFlex Manager (D): While modern versions unify this, historically and in exam logic, PFxM is the tool for deployment, upgrades, and hardware alerts (Lifecycle), whereas the "GUI" is for storage management.
The CLI (B) is used for scripting and advanced tasks, but the GUI is the standard for general daily operations.
NEW QUESTION # 106
What is the minimum bandwidth requirement for replicating volumes between PowerFlex clusters?
Answer: C
Explanation:
* 100 Mbps: While PowerFlex replication is highly efficient and only sends unique data chunks (deltas), the supported minimum reliable bandwidth for a WAN link between clusters is typically 100 Mbps.
* Reasoning: Below this speed, even moderate change rates in a production database would likely cause the replication journal to fill up faster than data can be drained to the remote site. This would lead to a
"Buffer Full" state, causing the replication to pause or the system to lose its Recovery Point Objective (RPO) compliance.
NEW QUESTION # 107
Which PowerFlex feature allows the sharing of storage data across multiple nodes?
Answer: B
Explanation:
PowerFlex is primarily a block storage solution, but it supports File Services (PowerFlex File) to allow data sharing across multiple nodes.
* PowerFlex File (Shared File Systems): This architecture adds NAS (Network Attached Storage) capabilities to the PowerFlex cluster. It utilizes NAS Nodes (which can be physical or virtual) that consume PowerFlex block volumes and format them with a file system. These file systems are then exposed to clients via standard protocols like NFS (Network File System) for Linux/Unix and SMB (Server Message Block) for Windows. This allows multiple compute nodes or users to read and write to the same logical storage space simultaneously.
* Why not the others?
* Fault Sets are for logical isolation of resources to ensure high availability, not for data sharing.
* Storage Pools are groupings of physical drives to define performance tiers, not the mechanism for file sharing.
* Replication is for disaster recovery (copying data to a remote site), not for active sharing within a cluster.
NEW QUESTION # 108
What actions can administrators perform to manage PowerFlex shared file systems? (Choose two).
Answer: B,D
Explanation:
PowerFlex File (NAS) extends the block capabilities to support file-level access.
Enable data access for multiple nodes (Option B): The fundamental purpose of a shared file system (NAS) is to allow multiple clients (Linux via NFS, Windows via SMB) to access the same dataset simultaneously over the network. PowerFlex File manages the exports and shares that facilitate this concurrency.
Configure snapshots for shared file systems (Option C): Just like block volumes, PowerFlex File systems support snapshots. These file-system level snapshots allow users to recover deleted files or administrators to roll back the entire file system to a previous point in time.
NEW QUESTION # 109
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