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VMware NSX-T Data Center Security Skills 2023
5V0-41.21
VMware NSX-T Data Center 3.1 Security Questions and Answers

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Questions # 1:

An NSX administrator has been tasked with deploying a NSX Edge Virtual machine through an ISO image.

Which virtual network interface card (vNIC) type must be selected while creating the NSX Edge VM allow participation in overlay and VLAN transport zones?

Options:

e1000

VMXNET2

VMXNET3

Flexible

Answer

Explanation

When deploying an NSX Edge Virtual Machine through an ISO image, the virtual network interface card (vNIC) type that must be selected is VMXNET3 in order to allow participation in overlay and VLAN transport zones. VMXNET3 is a high-performance and feature-rich paravirtualized NIC that provides a significant performance boost over other vNIC types, as well as support for both overlay and VLAN transport zones.

For more information on deploying an NSX Edge Virtual Machine through an ISO image, 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-deploy-config/GUID-A782558B-A72B-4848-B6DB-7A8A9E71FFD6.html

Questions # 2:

An administrator needs to configure their NSX-T logging to audit changes on firewall security policy. The administrator Is using the following command from NSX-T3.1 documentation :

Question # 2

Which Message ID from the following list will allow the administrator to track changes on firewall security rules?

Options:

FABRIC

MONITOR

SYSTEM

FIREWALL

Answer

Explanation

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. References: [1] https://docs.vmware.com/en/VMware-NSX-T/3.1/nsx_31_logging_guide/GUID-ADEDE32F-0606-4C2F-81B2-71914EEDA11F.html [2] https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/nsx/vmware-nsx-data-center-logging-guide.pdf

Questions # 3:

Which of the following are the local user accounts used to administer NSX-T Data Center?

Options:

operator, admin, audit

admin, super, read-only

operator, admin, root

admin, audit, root

Answer

Explanation

For further reading, see the VMware NSX-T Data Center Administration Guide (https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.1/com.vmware.nsxt.admin.doc/GUID-4A4E9FBE-50B3-4F8F-B6C4-8527E7A08A67.html) for more information on user accounts and permissions in NSX-T Data Center.

Questions # 4:

A security administrator recently enabled Guest Introspection on NSX-T Data Center.

Which would be a reason none of the Microsoft Windows based VMs are reporting any information?

Options:

Windows VMs require a reboot.

VMware Tools need to be reconfigured.

NSX Manager require a reboot.

NSX Manager needs to be reconfigured.

Answer

Explanation

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

Questions # 5:

An organization wants to add security controls for contractor virtual desktops. Which statement Is true when configuring an NSX Identity firewall rule?

Options:

User Identity can be used in the both the Source and the Destination sections of the firewall rule.

User Identity can only be used in the Source section of the firewall rule.

User Identity cannot be used in Source or Destination sections of the firewall rule.

User Identity can only be used in the Destination Section of the firewall rule.

Answer

Explanation

In NSX-T, Identity firewall rules allow you to specify security controls based on the identity of the user, rather than the IP address or other network-based attributes. User identity can be used as a source in the firewall rule.

Questions # 6:

An NSX administrator has turned on logging for the distributed firewall rule. On an ESXi host, where will the logs be stored?

Options:

/var/log/esxupdate.log

/var/log/dfwpktlogs.log

/var/log/hostd.log

/var/log/vmkerntl.log

Answer

Explanation

The NSX administrator has enabled logging for the distributed firewall rule, and the logs are stored in the /var/log/dfwpktlogs.log file on the ESXi host. This log file stores the packet logs for the distributed firewall rules, and the logs can be used for auditing and troubleshooting the distributed firewall.

References: https://docs.vmware.com/en/VMware-NSX-T-Data-Center/2.5/nsxt_25_admin_guide/GUID-E0CC7D8A-F9E6-4A6F-A6F8-6A3D7B3DC3EF.html#GUID-E0CC7D8A-F9E6-4A6F-A6F8-6A3D7B3DC3EF

Questions # 7:

At which OSI Layer do Next Generation Firewalls capable of analyzing application traffic operate?

Options:

Layer 4

Layer 3

Layer 7

Layer 2

Answer

Explanation

Next Generation Firewalls are capable of analyzing application traffic at Layer 7 of the OSI model. Layer 7 is the Application Layer, which is where the application-level protocols, such as HTTP and FTP, are implemented. Next Generation Firewalls are able to inspect the application traffic and apply rules based on the content of the application-level packets.

For more information on the OSI model and Next Generation Firewalls, please refer to the following resources:

• OSI Model: https://en.wikipedia.org/wiki/OSI_model • Next Generation Firewalls: https://en.wikipedia.org/wiki/Next-generation_firewall

Questions # 8:

An administrator wants to use Distributed Intrusion Detection. How is this implemented in an NSX-T Data Center?

Options:

As a distributed solution across multiple ESXi hosts.

As a distributed solution across multiple KVM hosts.

As a distributed solution across multiple NSX Managers.

As a distributed solution across multiple NSX Edge nodes.

Answer

Explanation

An administrator can implement Distributed Intrusion Detection as a distributed solution across multiple NSX Edge nodes in an NSX-T Data Center. This allows for real-time monitoring of network traffic, as well as detection and prevention of malicious activity. Additionally, it can be used to identify, investigate, and respond to potential security threats. References: [1] https://docs.vmware.com/en/VMware-NSX-T/3.0/vmware-nsx-t-30-administration-guide/GUID-1F8741C0-D1CD-4EA3-A2BB-98CEF7F8D1DA.html [2] https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-nsx-data-center-for-vsphere-distributed-intrusion-detection-deployment-guide.pdf

Questions # 9:

Reference the CLI output.

Question # 9

What is the source IP address in the distributed firewall rule to accept HTTP traffic?

Options:

172.16.30.11

172.16.10.12

172.16.10.11

172.16.20.11

Answer

Questions # 10:

A company's CTO has requested that all logging should be enabled for all NSX-T Data Center Distributed Firewall rules. What should be considered prior to executing this request?