Which of the following are accurate descriptions of the Predictive and Adaptive Schemes for placing VMFS datastores (Choose Two)?

What two things are guaranteed when establishing a virtual machine memory reservation? (Choose two)

An administrator wants to restrict the ability of selected administrators to install plug-ins in their vSphere Client application.
What action should the administrator perform?

An administrator is upgrading an application running in a virtual machine. Before performing the upgrade a snapshot called pre-upgrade is created. NO other snapshots exist. The upgrade operation succeeds and the administrator wants to keep the changes from the snapshot.
Which two operations can the administrator perform to ensure that the upgrade cannot be reverted? (Choose two)

When an explicit failover order has not been configured on a virtual switch with multiple uplinks, what determines which uplink is used when a failover event occurs?

What is beacon probing used for in vSphere networking?

The typical option is selected while running the New Virtual Machine Wizard in the vSphere Client;
Which four specific configuration options are skipped during virtual machine creation? (Choose Three)

A 2TB VMFS3 datastore has been upgraded to VMFS5. The original block size was 2MB.
What effect will this upgrade have on the maximum file size supported by the datastore?

An administrator notices that log files kept on an ESXi host are being rotated very quickly, initiating the troubleshooting of an issue?
Which two configuration changes will resolve this issue?

An administrator has determined that storage performance to group of virtual machines is reduced during peak activity. The virtual machines are located in VMFS datastore called Production 1 on an active-active storage array. The ESXi host running the virtual machine is configured with an MRU multipathing policy.
Which two actions can be taken to improve the storage performance of these virtual machines? (Choose two)