VMware 5V0-41.21 Practice Test - Questions Answers, Page 6

The most likely reason the sa-web-01 VM dvfilter name is missing from the command output is that the sa-web-01 VM is powered off on the ESXi host. The dvfilter name is associated with the VM when it is powered on, and is removed when the VM is powered off. Therefore, if the VM is powered off,

then the dvfilter name will not be visible in the command output. Other possible reasons could bethat the ESXi host has the firewall turned off, the ESXi host has 5SH disabled, or that the sa-web-01VM has no firewall rules configured. Reference:

[1] https://kb.vmware.com/s/article/2143718 [2] https://docs.vmware.com/en/VMware-NSXT/3.0/vmware-nsx-t-30-administration-guide/GUID-AC3CC8A3-B2DE-4A53-8F09-B8EEE3E3C7D1.html

An unprotected traffic flow in NSX Intelligence is a traffic flow that matches the default distributed firewall rule. The default rule is a catch-all rule which allows all traffic to pass through the distributed firewall, and any traffic flows that match this rule will be marked as unprotected. NSX Intelligence will then generate an alert for any unprotected traffic flows, allowing the administrator to take action to secure the traffic flow. Reference: [1] https://docs.vmware.com/en/VMware-NSX-T/3.0/vmwarensx- t-30-administration-guide/GUID-D43B9C85-7F4C-4504-8D2BBC1D7CADB4CD. html [2] https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-nsx-data-center-for-vsphere-distributed-firewall-deployment-guide.pdf

The most likely action to resolve the problem is to configure the ESXi host to use a remote NTP server. The time window requires the ESXi host to be synchronized to a time source in order to properly calculate the time window, and the error is likely due to the ESXi host not being synchronized. Configuring the ESXi host to use a remote NTP server should ensure that the host is properly synchronized, and allow the time window to be configured correctly. Reference:

[1] https://docs.vmware.com/en/VMware-NSX-T/3.0/vmware-nsx-t-30-administration-guide/GUIDDD7F38A3-3D3B-47F1-92D7-9A4D4F3C44E1.html [2] https://www.vmware.com/support/vsphere/doc/vsphere-esxi-vcenterserver-601-configuration-maximums.html

The three CU commands required to configure remote logging on an ESXi host are esxcli syslog config set "loghost-udp://<log server IP>:<port>", esxcli network firewall ruleset set -r syslog -e true, and esxcli system syslog reload. The first command sets the remote log server IP address and port for the ESXi host, the second command enables the syslog ruleset, and the third command reloads the syslog configuration. This will ensure that all syslog messages generated by the ESXi host will be sent to the remote log server. Reference: [1] https://docs.vmware.com/en/VMwarevSphere/ 7.0/com.vmware.vsphere.security.doc/GUID-CFE0E8FC-7C27-4F45-A037- CACCD8A1E9A2.html [2] https://docs.vmware.com/en/VMwarevSphere/ 7.0/com.vmware.vsphere.security.doc/GUID-A2F2A3D2-076A-4FE6-

The message ID that will allow the administrator to track changes on firewall security rules is "FIREWALL". This message ID is part of the NSX-T3.1 documentation and will be used to log any changes made to the firewall security policy. This will allow the administrator to easily audit and track any changes made to the policy. Reference: [1] https://docs.vmware.com/en/VMware-NSXT/ 3.1/nsx_31_logging_guide/GUID-ADEDE32F-0606-4C2F-81B2- 71914EEDA11F.html [2] https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/p roducts/nsx/vmware-nsx-data-center-logging-guide.pdf

In the Cloud Director UI (CU), the customer should update the intelligence manager node's host-ipaddr parameter with the correct IP address. This can be done from the NSX Intelligence Settings page in the CU.

For more information on updating the IP address of the NSX Intelligence appliance, please refer to the NSX Intelligence documentation: https://docs.vmware.com/en/VMware-NSXIntelligence/ 1.2/nsx-intelligence-1.2-administration-guide/GUID-9FA9D0E0-E8D6-4B2F-A1D3- 3E8E3F9B9CC2.html

NSX Manager needs to be reconfigured. Guest Introspection requires additional configuration of the NSX Manager in order to collect information from the Windows based VMs. This configuration includes setting up the Guest Introspection service with the appropriate credentials and configuring the rules to allow the traffic through the firewall. Once this is done, the Windows VMs will start reporting information to the NSX Manager.

For more information on setting up Guest Introspection, please refer to the NSX-T Data Center documentation: https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.0/nsx-t-3.0- installing/GUID-3B7F12AD-D8F7-44B9-A56B-E71F64C2F6A0.html

The Default Layer 3 distributed firewall rule is a system-defined rule in NSX-T Data Center that

applies to all distributed firewall sections. By default, this rule is set to drop all traffic, meaning thatany traffic that does not match a specific rule will be dropped.

For more information on the Default Layer 3 distributed firewall rule and how to configure it, please refer to the NSX-T Data Center documentation: https://docs.vmware.com/en/VMware-NSX-T-Data- Center/3.0/nsx-t-3.0-firewall/GUID-B6B835F2-B6F2-4468-8F8E-6F7B9B9D6E91.html