VMware 2V0-41.23 Online Practice Questions and Exam Preparation

VMware 2V0-41.23 Online Questions & Answers

• Question 21:

  HOTSPOT

  Which two items must be configured to enable OSPF for the Tler-0 Gateway in the Image? Mark your answers by clicking twice on the image.

  Hot Area:

  

  

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  Explanation/Reference:

  The correct answer is to enable the OSPF toggle and to add an Area Definition for the Tier-0 gateway in the image. These two items are required to configure OSPF on the Tier-0 gateway, as explained in the web search results123. To mark your answers by clicking twice on the image, you can double-click on the toggle switch next to OSPF to turn it on. The switch should change from gray to blue, indicating that the option is enabled. Then, you can double-click on the Set button next to Area Definition to add an area definition. A pop-up window should appear where you can specify the area ID and type.

  1. Click the OSPF toggle to enable OSPF

  2. In the Area Definition field, click Set to add an area definition https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.2/administration/GUID-5BEC626C-5312-467D-B873-8E117349E9FC.html

• Question 22:

  What can the administrator use to identify overlay segments in an NSX environment if troubleshooting is required?

  A. VNI ID
  B. Segment ID
  C. Geneve ID
  D. VIAN ID
  A. VNI ID

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  Explanation/Reference:

  According to the VMware NSX Documentation1, a segment is mapped to a unique Geneve segment that is distributed across the ESXi hosts in a transport zone. The Geneve segment uses a virtual network identifier (VNI) as an overlay network identifier. The VNI ID can be used to identify overlay segments in an NSX environment if troubleshooting is required.

• Question 23:

  How is the RouterLink port created between a Tier-1 Gateway and Tier-O Gateway?

  A. Automatically created when Tier-1 is connected with Tier-0 from NSX UI.
  B. Automatically created when Tier-1 is created.
  C. Manually create a Logical Switch and connect to bother Tier-1 and Tier-0 Gateways.
  D. Manually create a Segment and connect to both Tier-1 and Tier-0 Gateways.
  A. Automatically created when Tier-1 is connected with Tier-0 from NSX UI.

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  Explanation/Reference:

  The RouterLink port is automatically created when a Tier-1 Gateway is connected with a Tier-0 Gateway from the NSX UI1. The RouterLink port is a logical interface that is assigned an IP address and is associated with a physical or virtual interface. The RouterLink port acts as an end point of the IPSec tunnel and routes traffic between the Tier-1 Gateway and the Tier-0 Gateway2. The other options are incorrect because they involve manual creation of logical switches or segments, which are not required for RouterLink port creation. References: Configure NSX for Virtual Networking from vSphere Client, Virtual Private Network (VPN) https://docs.vmware.com/jp/VMware-NSX/4.0/administration/GUID3F163DEE-1EE6-4D80-BEBF-8D109FDB577C.html

• Question 24:

  Which two built-in VMware tools will help Identify the cause of packet loss on VLAN Segments? (Choose two.)

  A. Flow Monitoring
  B. Packet Capture
  C. Live Flow
  D. Activity Monitoring
  E. Traceflow
  B. Packet Capture
  E. Traceflow

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  Explanation/Reference:

  According to the VMware NSX Documentation1, Packet Capture and Traceflow are two built-in VMware tools that can help identify the cause of packet loss on VLAN segments.

  Packet Capture allows you to capture packets on a specific interface or segment and analyze them using tools such as Wireshark or tcpdump. Packet Capture can help you diagnose network issues such as misconfigured MTU, incorrect

  VLAN tags, or firewall drops.

  Traceflow allows you to inject synthetic packets into the network and trace their path from source to destination. Traceflow can help you verify connectivity, routing, and firewall rules between virtual machines or segments. Traceflow can also

  show you where packets are dropped or modified along the way.

• Question 25:

  An NSX administrator would like to create an L2 segment with the following requirements:

  L2 domain should not exist on the physical switches.

  East/West communication must be maximized as much as possible.

  Which type of segment must the administrator choose?

  A. VLAN
  B. Overlay
  C. Bridge
  D. Hybrid
  B. Overlay

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  Explanation/Reference:

  An overlay segment is a layer 2 broadcast domain that is implemented as a logical construct in the NSX-T Data Center software. Overlay segments do not require any configuration on the physical switches, and they allow for optimal east/ west communication between workloads on different ESXi hosts. Overlay segments use the Geneve protocol to encapsulate and decapsulate traffic between the hosts. Overlay segments are created and managed by the NSX Manager. https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.2/administration/GUID-316E5027-E588-455C-88AD-A7DA930A4F0B.html

• Question 26:

  A customer is preparing to deploy a VMware Kubernetes solution in an NSX environment.

  What is the minimum MTU size for the UPLINK profile?

  A. 1500
  B. 1550
  C. 1700
  D. 1650
  C. 1700

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  Explanation/Reference:

  The minimum MTU size for the UPLINK profile is 1700 bytes. This is because the UPLINK profile is used to configure the physical NICs that connect to the NSX-T overlay network. The overlay network uses geneve encapsulation, which adds an overhead of 54 bytes to the original packet. Therefore, to support a standard MTU of 1500 bytes for the inner packet, the outer packet must have an MTU of at least 1554 bytes. However, VMware recommends adding an extra buffer of 146 bytes to account for possible additional headers or VLAN tags. Therefore, the minimum MTU size for the UPLINK profile is 1700 bytes (1554 + 146). References: : VMware NSX-T Data Center Installation Guide, page 23. : VMware NSXT Data Center Administration Guide, page 102. : VMware NSX-T Data Center Installation Guide, page 24. https://nsx.techzone.vmware.com/resource/nsx-reference-design-guide#a-31-the-nsx-virtual-switch

• Question 27:

  Which two logical router components span across all transport nodes? (Choose two.)

  A. SFRVICE_ROUTER_TJER0
  B. TIERO_DISTRI BUTE D_ ROUTER
  C. DISTRIBUTED_R0UTER_TIER1
  D. DISTRIBUTED_ROUTER_TIER0
  E. SERVICE_ROUTER_TIERl
  C. DISTRIBUTED_R0UTER_TIER1
  D. DISTRIBUTED_ROUTER_TIER0

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  Explanation/Reference:

  https://docs.vmware.com/en/VMware-Validated-Design/5.0.1/com.vmware.vvd.sddc-nsxt-design.doc/GUID-74141ABD-C9AF-4A92-8338-092CD67EB56E.html https://www.delltechnologies.com/asset/en-us/products/converged-infrastructure/technical-support/docu96042.pdf

• Question 28:

  What are two valid options when configuring the scope of a distributed firewall rule? (Choose two.)

  A. DFW
  B. Tier-1 Gateway
  C. Segment
  D. Segment Port
  E. Group
  A. DFW
  E. Group

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  Explanation/Reference:

  A group is a logical construct that represents a collection of objects in NSX, such as segments, segment ports, virtual machines, IP addresses, MAC addresses, tags, or security policies. A group can be used to define dynamic membership criteria based on various attributes or filters. A group can also be used as the scope of a distributed firewall rule, which means that the rule will apply to all the traffic that matches the group membership criteria32 Reference: https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.2/administration/GUID-41CC06DF-1CD4-4233-B43E-492A9A3AD5F6.html https://docs.vmware.com/en/VMware-NSX-Data-Center-for-vSphere/6.4/ com.vmware.nsx.admin.doc/GUID-D44C8923-992F-4695-B9C0-5CC271679D09.html

• Question 29:

  In which VPN type are the Virtual Tunnel interfaces (VTI) used?

  A. Route and SSL based VPNs
  B. Route-based VPN
  C. Policy and Route based VPNs
  D. SSL-based VPN
  B. Route-based VPN

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  Explanation/Reference:

  Route-based VPN is a VPN type that uses Virtual Tunnel interfaces (VTI) to establish IPSec tunnels between an NSX Edge node and remote sites2. A VTI is a logical interface that is assigned an IP address and is associated with a physical or virtual interface. The VTI acts as an end point of the IPSec tunnel and routes traffic between the NSX Edge node and the remote site2. Route and SSL based VPNs, Policy and Route based VPNs, and SSL-based VPN are not VPN types that use VTI. References: Virtual Private Network (VPN)

• Question 30:

  An NSX administrator is reviewing syslog and notices that Distributed Firewall Rules hit counts are not being logged.

  What could cause this issue?

  A. Syslog is not configured on the ESXi transport node.
  B. Zero Trust Security is not enabled.
  C. Syslog is not configured on the NSX Manager.
  D. Distributed Firewall Rule logging is not enabled.
  D. Distributed Firewall Rule logging is not enabled.

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  Explanation/Reference:

  https://docs.vmware.com/en/VMware-NSX/4.0/administration/GUID-D57429A1-A0A9-42BE-A299-0C3C3546ABF3.html