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When operating with Distributed Resource Scheduler (DRS) and Distributed Power Management (DPM), what two statements explain the impact of disabling vSphere High Availability admission control? (Choose two.)

A.    VMware DPM does not place hosts in standby mode if doing so would violate failover requirements.
B.    DRS does not evacuate virtual machines from a host for the purpose of placing it in maintenance or standby modes if placing the host in this state would violate failover requirements.
C.    DRS will evacuate virtual machines from hosts and places hosts in maintenance or standby modes regardless of the impact this might have on failover requirements.
D.    VMware DPM will place hosts in standby mode even if doing so violates failover requirements.

Answer: CD

An administrator is configuring Storage I/O Control. After enabling, the administrator notices high device latency and poor storage performance.
Which two actions would likely reduce latency and improve functionality? (Choose two.)

A.    Set the congestion threshold to 15ms
B.    Set the congestion threshold value to 5ms
C.    Ensure that each datastore has independent spindles
D.    Ensure that each datastore uses shared spindles

Answer: AC

An administrator wants to ensure that all datastores defined on an ALUA-based storage array have load balancing enabled by default. The storage configuration is:

– Storage Array Type = VMW_SATP_DEFAULT_AA
– Path Selection Policy = VMW_PSP_FIXED

Which configuration would support the stated requirements?

A.    Change the Storage Array Type Policy to = VMW_SATP_ALUA and the Path Selection Policy = VMW_PSP_RR.
B.    Change the Path Selection Policy = VMW_PSP_RR and leave the Storage Array Type Policy as is.
C.    Change the Storage Array Type Policy to = VMW_SATP_ALUA and leave the Path Selection Policy as is.
D.    Change the Path Selection Policy = NMP and leave the Storage Array Type Policy as is.

Answer: A

An administrator has configured Network I/O Control to support bandwidth allocation to a group of virtual machines running on a vSphere 6.x HA/DRS Cluster.
Which two conditions would cause DRS to migrate one of these virtual machines to another host in the cluster? (Choose two.)

A.    The reservation is changed to a value that the initial host can no longer satisfy.
B.    A physical adapter that carries traffic from the virtual machine is offline.
C.    A physical adapter cannot supply the minimum bandwidth in accordance with the teaming policy.
D.    A reservation for a VM network adapter is less than the free quota in the network resource pool.

Answer: AB

An administrator has decided to create 10 ESXi 6.x hosts via Auto Deploy for a new Test/Dev cluster. The hosts are configured to obtain their networking configuration via DHCP.
Which condition would explain why none of the hosts are able to receive a valid DHCP address?

A.    The BIOS DHCP File Name was incorrectly entered on the DHCP server.
B.    The DHCP scope was set too small.
C.    The DHCP lease duration is set too short.
D.    The Boot Server Host Name has been set to the TFTP server.

Answer: A

When using “Cluster resource percentage” for host failover capacity in vSphere HA Admission Control, the total resource requirements are calculated from which two values? (Choose two.)

A.    Total vCPUs assigned to each VM.
B.    Average CPU usage on each VM over time.
C.    Memory reservations on each VM.
D.    Total memory assigned to each VM.
E.    Average active memory on each VM over time.
F.    CPU reservations on each VM.

Answer: CF
vSphere HA Admission Control Improvements
Several improvements have been made to simplify the configuration of vSphere HA admission control. Starting with vSphere 6.5, the default admission control policy is Cluster Resource Percentage. This policy calculates the amount of failover capacity to reserve by using a percentage of the total available CPU and memory resources in the cluster. To further simplify the configuration, this percentage is now calculated automatically by defining the number of host failures to tolerate (FTT).

Which are four attributes of the Active vCenter HA node? (Choose four.)

A.    It uses the vCenter HA network to communicate with the Witness node.
B.    It constantly replicates vPostgres data with the Witness node.
C.    It uses a public IP address for the management interface.
D.    It runs the active vCenter Server Appliance instance.
E.    It uses the vCenter HA network for replication of data.
F.    It provides a quorum to protect against split-brain situations.

Answer: ACDE

Which are two vCenter Server two-factor authentication methods? (Choose two.)

A.    RSA SecurID
B.    Smart Card
C.    SAML
D.    Symantec VIP

Answer: AB

An administrator is creating VMkernel adapters on an ESXi 6.5 host and wants to create separate VMkernel adapters for every type of traffic in the default TCP/IP stack.
Which three types of traffic can be explicitly enabled on a separate VMkernel adapter? (Choose three.)

A.    Virtual SAN traffic
B.    NFS traffic
C.    vMotion traffic
D.    vSphere HA traffic
E.    Fault Tolerance logging traffic

Answer: ACE
* A VMkernel adapter for vMotion is required both on the source and the target hosts. Configure The VMkernel adapters for vMotion to handle only the vMotion traffic.
* A separate VMkernel adapter for Fault Tolerance logging is required on every host that is part of a vSphere HA cluster.
* Every host that participates in a vSAN cluster must have a VMkernel adapter to handle the vSAN traffic.

A vSphere administrator wants to upgrade NFS3 datastores to NFS4.1 on ESXi 6.5 hosts with running production virtual machines.
Which option is valid?

A.    Run ESXi command to upgrade the datastore.
B.    Unmount the datastore from a single host, then mount it as NFS 4.1 datastore, and repeat this one host at a time until the mount has been upgraded on all hosts.
C.    Create a new NFS 4.1 datastore, and then use Storage vMotion to migrate virtual machines from the old datastore to the new one.
D.    Right click the datastore and upgrade it as a NFS 4.1 datastore.

Answer: C
https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-8A929FE4-1207-4CC5-A086-7016D73C328F.html (NFS version upgrades)

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