VMware 5V0-41.21 VMware NSX-T Data Center 3.1 Security Exam Practice Test

For further reading, see the VMware NSX-T Data Center Administration Guide (https://pubs.vmware.com/NSX-T-Data-Center/index.html#com.vmware.nsxt.admin.doc/GUID-BEDA8D9F-ACBC-42B1-B7F5-FEEF0E0D899C.html)  for more information on configuring dynamic groups.

NSX Intelligence uses machine learning algorithms to analyze network traffic and provide recommendations for security and compliance. The administrator can configure the time range of the input entities to be analyzed, so that the recommendations are based on changes in the scope of the input entities over that period of time.

To achieve the requirement of getting recommendations based on the changes in the scope of the input entities every hour, the administrator needs to adjust the time range to 1 hour. This will ensure that the analysis and recommendations are based on the most recent hour of network traffic.

References:

• VMware NSX Intelligence documentation https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.1/com.vmware.nsxt.intelligence.doc/GUID-F2F1D7E8-F6B2-4870-9E38-7C8D3D3F9B1E.html
• VMware NSX Intelligence Configuration documentation https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.1/com.vmware.nsxt.intelligence.config.doc/GUID-7F44F3D3-3A3C-4EBE-A5D5-F1E3E3F59A8B.html

Zero-Trust Networks is a security concept that assumes that all devices, users, and networks are untrusted until they can be verified. This means that all network-connected devices must be verified for their identity and integrity before they are granted access to resources. This is done continually, meaning that devices are verified every time they try to access a resource, rather than being trusted permanently.

C. Network connected devices should only be trusted if their identity and integrity can be verified continually. This is the main concept of Zero-Trust Networks, every device that wants to access the network should be authenticated and verified its identity and integrity.

References:

• Zero Trust Networks, Forrester Research https://www.forrester.com/report/Zero+Trust+Networks/-/E-RES146810
• Zero Trust Security: From Theory to Practice, NIST https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800

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

The first object that must be created in the distributed firewall is a firewall policy. A firewall policy is a set of rules that define what traffic is allowed or blocked on a given network. When creating a policy, the administrator must specify the source and destination address and port, as well as the type of traffic that is allowed or blocked. The policy will then be applied to the distributed firewall, allowing it to enforce the rules specified in the policy. References: [1] https://docs.vmware.com/en/VMware-NSX-T/3.0/vmware-nsx-t-30-administration-guide/GUID-4CAF59C8-13F3-4F3E-B53E-D8F1E03FBE7B.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 NSX Edge nodes require access to the Internet to download category and reputation definitions, and a layer 7 gateway firewall rule must be configured on the tier-1 gateway uplink to capture DNS traffic. This will allow the URL Analysis service to analyze incoming DNS traffic and block malicious requests. For more information, please see this VMware Documentation article[1], which explains how to configure URL Analysis on NSX.

[1] https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.1/nsxt_31_url_analysis/GUID-46BC65F3-7A45-4A9F-B444-E4A1A7E0AC4A.html

NSX Distributed Firewall is used to create firewall rules to control traffic between networks.

For further reading, see the VMware NSX-T Data Center Administration Guide (https://pubs.vmware.com/NSX-T-Data-Center/index.html#com.vmware.nsxt.admin.doc/GUID-4B6A4A87-F9C7-4AAB-923F-C6B84C33AF7D.html)  for more information on configuring firewall rules.

Zero-Trust with segmentation is a security strategy that uses micro-segmentation to protect a network from malicious actors. By breaking down the network into smaller segments, the NSX Distributed Firewall can create a zero-trust architecture which limits access to only users and devices that have been authorized. This reduces the risk of a malicious actor gaining access to sensitive data and systems.

Lateral Movement of Attacks prevention is another use-case for the NSX Distributed Firewall. Lateral movement of attacks are when an attacker is already inside the network and attempts to move laterally between systems. The NSX Distributed Firewall can help protect the network from these attacks by controlling the flow of traffic between systems and preventing unauthorized access.

References: https://www.vmware.com/products/nsx/distributed-firewall.html  https://searchsecurity.techtarget.com/definition/zero-trust-network

The four use cases for NSX Tags are Manageability, Third-party sharing/context sharing, Security, and Troubleshooting (Traceability). NSX Tags provide an easy way to organize, document, and manage virtual networks and can be used to track changes and enforce security policies. They can also be used to share context between third-party providers, such as cloud service providers, to ensure that security policies are adhered to. Additionally, NSX Tags can be used for logging and troubleshooting by providing traceability and making it easier to debug network issues. References: [1] https://docs.vmware.com/en/VMware-NSX-T/3.0/vmware-nsx-t-30-administration-guide/GUID-2F3E7A3F-3C85-48E1-8F7E-2A2F7C2F8FCC.html  [2] https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/nsx/vmware-nsx-data-center-for-vsphere-tag-based-security-guide.pdf