5V0-21.21 試験問題を無料オンラインアクセス

An architect is designing a vSAN cluster.
Which storage controller option will yield optimal performance?

• A.Set caching to 50% read on the controller
• B.Enable battery write-back caching
• C.RAID 0
• D.Hugh queue depth

Upon checking the latency goal under vSAN performance diagnostics, the vSAN Administrator sees this message displayed:
The increase in latency in the vSAN stack might be beyond expected limits.
Which two root causes can be identified to help remediate the issue? (Choose two.)

• A.vSAN encryption is enabled
• B.One or more disk groups are congested
• C.Incorrect sizing of the disk groups capacity disks
• D.vSAN VMKemel portgroup is configured with the "Route based on IP hash" teaming policy
• E.Large packet losses and retransmissions on the network layer

An administrator is setting up vSAN file services on a vSAN cluster.
Which two security policies on the distributed port groups are automatically enabled in the process? (Choose two.)

• A.Forged Transmits
• B.MacLearning
• C.DVFiltering
• D.Jumbo Frames
• E.Promiscuous Mode

An architect is currently working with a customer to transform their existing ESXi hosts to vSAN nodes. The customer expressed the following requirements.
* First phase will transform 50% of the hosts to a hybrid vSAN nodes.
* Second phase will transform the remaining 50% hosts to an All-Flash vSAN nodes.
The following constraint exists:
* Each host has a 4-port x 1 GbE network interface.
Which two recommendations should the architect make to align with the customer's requirements? (Choose two.)

• A.Hybrid vSAN clusters must have dedicated 10 GbE network adapters.
• B.All-Flash vSAN clusters must have dedicated 10 GbE network adapters.
• C.Hybrid vSAN clusters can have shared 1 GbE network adapters.
• D.All-Flash vSAN clusters can have shared 10 GbE network adapters.
• E.Hybrid vSAN clusters must have dedicated 1 GbE network adapters.

An 8-Node vSAN Stretched Cluster (4+4+1) with a single disk group has a policy with PFTT=1 (mirrored across sites) and SFTT=1/FTM Mirroring (Local Protection) configured.
The administrator has been alerted that there is a problem with the cluster. The following has been observed:
* The vSAN Witness Host is offline.
* Two disk failures on two hosts have occurred in the preferred site.
This has resulted in a critical production virtual machine's vmdk becoming inaccessible.
Which step needs to be performed by the administrator to resolve the issue?

• A.Replace all failed disks on the preferred site.
• B.Replace access to the existing vSAN Witness Host
• C.Replace only one failed disk on the preferred site.
• D.Replace the vSAN Witness Host