NEW QUESTION 1
An administrator finds that the Microsoft Exchange virtual machines are exhibiting network latency. What two in-guest changes can help decrease latency? (Choose two.)

• A. PVDRMA
• B. TSO
• C. SR-IOV
• D. LRO

Answer: BD

Explanation: Using TSO and LRO on physical and virtual machine NICs improves the performance of ESX/ESXi hosts by reducing the CPU overhead for TCP/IP network operations. The host uses more CPU cycles to run applications.
If TSO is enabled on the transmission path, the NIC divides larger data chunks into TCP segments. If TSO is disabled, the CPU performs segmentation for TCP/IP.
TSO is referred to as LSO (Large Segment Offload or Large Send Offload) in the latest VMXNET3 driver
attributes.
LRO reassembles incoming network packets into larger buffers and transfers the resulting larger but fewer packets to the network stack of the host or virtual machine. The CPU has to process fewer packets than when LRO is disabled, which reduces its utilization for networking.

NEW QUESTION 2
What advanced parameter defines a custom isolation IP address for a vSphere HA cluster?

• A. das.isolationaddress
• B. das.usedefaultisolationaddress
• C. das.isolationshutdowntimeout
• D. fdm.isolationpolicydelaysec

Answer: A

NEW QUESTION 3
After deploying the vCenter Server Appliance, an administrator can log into the vSphere Web Client as “administrator@vSphere.local”, but not with Active Directory domain credentials.
Which action will troubleshoot this?

• A. Create a domain group named “esxadmins” and add the domain account to it.
• B. Add the Active Directory domain as a Single Sign-On identity source.
• C. Change the Active Directory account password to match administrator@vSphere.local” password.
• D. Create a child domain named “vSphere.local”.

Answer: B

NEW QUESTION 4
A vSphere Administrator observes that the Primary VM configured with Fault Tolerance is executing slowly. After further investigation, it is determined that the Secondary VM is on an overcommitted ESXi host.
What two methods will correct the problem? (Choose two.)

• A. Configure a CPU limit on the Primary VM which will also apply to the Secondary VM.
• B. Turn off and turn on FT in order to recreate the Secondary VM on a different datastore.
• C. Use Storage vMotion to migrate the Secondary VM to another datastore.
• D. Use vMotion to migrate the Secondary VM to a different ESXi host.

Answer: BD

NEW QUESTION 5
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

Explanation:

NEW QUESTION 6
What are two valid reasons for a DRS recommendation in a vSphere DRS cluster? (Choose two.)

• A. satisfy an affinity rule
• B. satisfy VM startup/shutdown order
• C. satisfy vSphere HA admission control
• D. ESXi host entering maintenance mode

Answer: AD

NEW QUESTION 7
ESXi hosts with 10Gbps network cards are attached to a distributed switch. The administrator has upgraded to NIOC3 and wants to allow vMotion traffic to use as much bandwidth as possible but must ensure that other services always have sufficient bandwidth.
How can this be done?

• A. Configure shares on the distributed switch for the vMotion traffic type.
• B. Configure limits on the distributed switch on the on vMotion traffic type.
• C. Associate vMotion traffic with a network resource pool and use CoS tagging.
• D. Set shares on user-defined network resource pool and associate it with vMotion traffic.

Answer: A

Explanation: From the Shares drop-down men, edit the share of the traffic in the overall flow through a physical adapter. Network I/O Control applies the configured shares when a physical adapter is saturated.

NEW QUESTION 8
Which two permissions are required to migrate a virtual machine with Storage vMotion? (Choose two.)

• A. Network > Move Network
• B. Virtual Machine > Inventory > Move
• C. Resource > Migrate powered on virtual machine
• D. Datastore > Allocate Space

Answer: CD

Explanation: You require these permissions to perform Storage vMotion from the Remote Command Line Interface (RCLI): Resource:
https://kb.vmware.com/selfservice/microsites/search.do? language=en_US&cmd=displayKC&externalId=1011345

NEW QUESTION 9
What counter should an administrator check to determine if a virtual machine is ballooning?

• A. swapinRate
• B. vmmemctl
• C. vmmemctltarget
• D. swapped

Answer: B

Explanation: Memory Ballooning is the memory reclamation technique used by hypervisor to reclaim the memory back from the virtual machine.
When ESXi host running low on physical memory, It uses ballooning driver (vmmemctl.sys) to determine the how much memory from virtual machines can be get back to prevent the hypervisor swapping.

NEW QUESTION 10
Which storage feature always requires the use of third-party software on ESXi?

• A. Hardware Acceleration for NAS devices
• B. VVOL
• C. Hardware Acceleration for Block Devices
• D. VM Storage Policies

Answer: A

Explanation: With NAS storage devices, the hardware acceleration integration is implemented through vendor-specific NAS plug-ins. These plug-ins are typically created by vendors and are distributed as VIB packages through a website. No claim rules are required for the NAS plug-ins to function.
Several tools for installing and upgrading VIB packages are available. They include the esxcli commands and vSphere Update Manager.

NEW QUESTION 11
A Telco customer is implementing NFV using vSphere as the virtualization platform. Which feature can help achieve a high packet rate with lower CPU consumption?

• A. SplitRX
• B. Network I/O Control
• C. ERSPAN
• D. LACP

Answer: A

Explanation: SplitRx Mode
SplitRx mode uses multiple physical CPUs to process network packets received in a single network queue.
This feature can significantly improve network performance for certain workloads. These workloads include:
Multiple virtual machines on one ESXi host all receiving multicast traffic from the same source. (SplitRx mode will typically improve throughput and CPU efficiency for these workloads.)
Traffic via the vNetwork Appliance (DVFilter) API between two virtual machines on the same ESXi host. (SplitRx mode will typically improve throughput and maximum packet rates for these workloads.)
In vSphere 5.1 and later this feature is automatically enabled for a VMXNET3 virtual network adapter (The only adapter type on which it is supported) when ESXi detects that a single network queue on a physical NIC is both (a) heavily utilized and (b) getting more that 10,000 broadcast/multicast packets per second.

NEW QUESTION 12
In network troubleshooting it is important to know what upstream switch the ESXi host is connected to. Which two features does ESXi provide to help identify the upstream switch? (Choose two.)

• A. DPM
• B. Promiscuous mode
• C. LLDP
• D. CDP

Answer: CD

NEW QUESTION 13
A vSphere administrator upgraded vCenter Server (VC) from version 5.5 to 6.5. Existing VMFS5 datastores consumption is 75% full. All of the ESXi hosts have been upgraded to version 6.5. Existing datastores have not yet been upgraded.
Which is VMware’s recommended approach to upgrading each VMFS5 datastore to VMFS6?

• A. The option to upgrade datastores to VMFS6 is only available during the ESXi host upgrade process.
• B. Log on one ESXi host at a time using vSphere 6.5 Windows Clien
• C. Navigate to the datastores view.Right-click on the VMFS5 datastore, and then select upgrade to VMFS6.
• D. Log on to VC using vSphere 6.5 Web Clien
• E. Navigate to the datastores vie
• F. Right-click on the VMFS5 datastore, and then select upgrade to VMFS6.
• G. Log on to VC using vSphere 6.5 Web Clien
• H. Create a VMFS6 datastore on a new LU
• I. Use storage vMotion to migrate the data to the new datastore.

Answer: D

Explanation: Perform version check for the vCenter Server and all ESX hosts.
Note: All ESXi hosts and vCenter Server must be of vSphere 6.5. Do not proceed if any one of ESXi hosts is not vSphere 6.5. Proceeding further means business continuity loss and the new datastore is not visible in old ESX hosts.
Perform all pre checks for free space availability on datastore DS-2. Available space on DS-2 must be equal or more than the datastore DS-1 space.
Ensure that the datastore DS-2 is VMFS 6 type.
Prepare list of all virtual machines in the vCenter Server’s inventory that are hosted on datastore DS-1. Evacuate the datastore DS-1. For this, migrate all the virtual machines running from datastore DS-1 to
datastore DS-2. Storage vMotion operations are performed on these virtual machines.
Perform one migration at a time to avoid disrupting the performance of remaining datacenter entities. Keep track of any migration failures, if any, re-trigger the migration for those virtual machines.
Ensure that datastore DS-1 is empty by listing files on this datastore. Note: Proceed further only if datastore DS-1 is empty.
Unmount datastore DS-1 from all ESX hosts. Delete datastore DS-1.
Create a new datastore with the VMFS 6 filesystem using the same lun. For example, DS-1.
Trigger a storage rescan operation on all hosts and wait for few minutes for this operation to complete.
Move all virtual machines back to datastore DS-1 from datastore DS-2 by performing storage vMotion operation. It is suggested to migrate one virtual machine at a time. Keep track of any migration failures, if any, re-trigger migration for those virtual machines.

NEW QUESTION 14
An administrator wants to upgrade ESXi 5.5 hosts to ESXi 6.5 using Update Manager. When performing a scan for baseline compliance, the host’s status is marked Compliant.
Which has happened?

• A. Host must be version 6.0 in order to upgrade to 6.5.
• B. Host has some third-party software installed.
• C. Host has no upgrade baseline attached.
• D. Host hardware is not supported for upgrade.

Answer: C

Explanation: http://vmiss.net/2021/12/20/upgrading-esxi-using-vsphere-update-manager-6-5-on-the-vcenter-server-appliance/

NEW QUESTION 15
An administrator wants to enable proactive HA by moving virtual machines automatically if a hardware alert is triggered.
What are the three requires settings? (Choose three.)

• A. Turn on vSphere HA and vSphere DRS.
• B. Set the Proactive HA Automation Level to Manual.
• C. Set vSphere DRS Automation to Partially Automated.
• D. Turn on Proactive HA.
• E. Set the Proactive HA Automation Level to Automated.

Answer: ACD

NEW QUESTION 16
An administrator notices that a virtual machine running SQL Server is not performing as expected. Upon checking the logs, the administrator sees the following error:
vmware.log> vmx| W110: NUMA and VCPU hot add are incompatible. Forcing UMA How can the administrator resolve this issue?

• A. Power off the virtual machine and disable vCPU hot plug.
• B. Reinstall VMware Tools.
• C. Modify the .vmx file to force NUMA and vCPU hot add to function.
• D. Install a third party plug-in to enable NUMA and vCPU hot add to function.

Answer: A

NEW QUESTION 17
Which two choices are applicable to vSphere Availability? (Choose two.)

• A. Admission Control
• B. Heartbeat Datastores
• C. VM Startup/Shutdown
• D. Power Management

Answer: AB

NEW QUESTION 18
An attempt to delete NFS datastore from an ESXI host returns the error: Sysinfo error on operation returned the following status: Busy
Which two statements could explain this failure? (Choose two.)

• A. Storage IO Control is enabled on NFS datastore.
• B. NFS datastore is a part of Storage DRS Cluster.
• C. NFS datastore has running or registered virtual machines.
• D. NFS.VolumeRemountFrequency value is set to 30.

Answer: AC

Explanation: The busy status indicated that either storage I/O control is enabled on NFS datastore or the NFS datastore is running on registered virtual machines. In both cases, sysinfo error on operation will be returned with busy status.

NEW QUESTION 19
Which metric in the Exhibit would identify high latency for a storage device?

• A. KAVG/cmd
• B. DAVG/cmd
• C. GAVG/cmd
• D. QAVG/cmd

Answer: B

Explanation:

NEW QUESTION 20
Which happens if the swap file of a virtual machine is inaccessible to the destination host during a vMotion?

• A. The swap file is stored with the virtual machine configuration file.
• B. The swap file is copied to the destination host.
• C. The vMotion will fail.
• D. The swap file is replicated to a datastore accessible by both hosts.

Answer: A

Explanation:
If the destination host cannot access the specified swap file location, it stores the swap file with the virtual machine configuration file.