100% PASS QUIZ 2025 HIGH HIT-RATE VMWARE 3V0-42.23: VMWARE NSX 4.X ADVANCED DESIGN EXAMCOLLECTION QUESTIONS ANSWERS

100% Pass Quiz 2025 High Hit-Rate VMware 3V0-42.23: VMware NSX 4.x Advanced Design Examcollection Questions Answers

100% Pass Quiz 2025 High Hit-Rate VMware 3V0-42.23: VMware NSX 4.x Advanced Design Examcollection Questions Answers

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VMware NSX 4.x Advanced Design Sample Questions (Q148-Q153):

NEW QUESTION # 148
Failover detection mechanisms in NSX are designed to?

  • A. Monitor the temperature of data center facilities
  • B. Track the usage of applications on VMs
  • C. Ensure quick recovery of services in the event of a failure
  • D. Increase downtime during failovers

Answer: C


NEW QUESTION # 149
What role does BGP play in NSX routing configurations?

  • A. It is mainly used for direct internet access configurations
  • B. It replaces the need for OSPF in all scenarios
  • C. It is used exclusively for internal routing within a data center
  • D. It facilitates dynamic routing with external networks

Answer: D


NEW QUESTION # 150
The benefits of using SSL Offload include?

  • A. Directly increasing the internet speed
  • B. Relieving the web servers of encryption and decryption tasks
  • C. Enabling stronger encryption algorithms
  • D. Making the SSL certificates easier to install

Answer: B


NEW QUESTION # 151
The NSX Gateway Firewall can be used as?

  • A. Neither a perimeter nor an inter-tenant firewall
  • B. Only an inter-tenant firewall
  • C. Only a perimeter firewall
  • D. Both a perimeter and an inter-tenant firewall

Answer: D


NEW QUESTION # 152
Which of the following considerations should be taken into account when designing Geneve tunneling?

  • A. The size of the virtual machines running in the NSX environment.
  • B. The number of transport nodes in the NSX environment.
  • C. The physical location of the transport nodes within the data center.
  • D. The available bandwidth on the physical network links between the transport nodes.

Answer: D

Explanation:
When designing Geneve tunneling in VMware NSX 4.x, one of the key considerations is ensuring that there is sufficient bandwidth on the physical network links between transport nodes. This is because Geneve (Generic Network Virtualization Encapsulation) tunnels encapsulate traffic from virtual machines and send it across the physical network infrastructure. If the physical network links do not have enough bandwidth to handle this encapsulated traffic, it could lead to congestion, packet drops, and degraded performance.
Detailed Breakdown:
* Geneve Tunneling Overview :
* Geneve is a tunneling protocol used by VMware NSX to encapsulate Layer 2 or Layer 3 traffic inside UDP packets. This allows for overlay networking where multiple logical networks can be created over a shared physical network infrastructure.
* Each tunnel endpoint resides on a transport node (e.g., ESXi hosts, Edge nodes, etc.), and these endpoints communicate with each other over the physical network using Geneve encapsulation.
* Why Bandwidth Matters (Option B) :
* Since Geneve adds an additional header to the original packet, it increases the overall size of the packet being transmitted. This means that more data needs to traverse the physical network links.
* If the physical links between transport nodes are already heavily utilized or do not have sufficient capacity, adding Geneve-encapsulated traffic could exacerbate existing bottlenecks.
* Therefore, when designing the NSX environment, it's crucial to assess the current utilization of the physical network and ensure that there is adequate headroom for the increased load due to Geneve tunneling.
* Other Options Analysis :
* A. The number of transport nodes in the NSX environment :
* While the number of transport nodes does affect the complexity of the NSX deployment (more nodes mean more tunnels to manage), it doesn't directly impact the design of Geneve tunneling itself. The primary concern here would be scalability rather than the tunneling protocol's efficiency.
* C. The size of the virtual machines running in the NSX environment :
* The size of the VMs (CPU, memory, disk space) has no direct bearing on Geneve tunneling. What matters is the amount of network traffic generated by those VMs, not their resource allocation.
* D. The physical location of the transport nodes within the data center :
* Although the physical location of transport nodes might influence latency and routing decisions, it isn't a primary factor when specifically considering Geneve tunneling design. However, proximity could indirectly affect performance if distant nodes introduce higher latencies or require traversing slower WAN links.
References:
* VMware NSX-T Data Center Installation Guide 4.x :
* This guide provides detailed steps and considerations for deploying NSX-T environments, including setting up transport zones and configuring Geneve tunnels. It emphasizes the importance of assessing network bandwidth requirements during the planning phase.
* VMware NSX-T Data Center Design Guide 4.x :
* The design guide discusses best practices for designing scalable and performant NSX environments. It highlights the need to evaluate the underlying physical network infrastructure to support overlay traffic efficiently.
* VMware Knowledge Base Articles :
* Various KB articles related to NSX troubleshooting often mention issues arising from insufficient bandwidth on physical links when dealing with high volumes of encapsulated traffic.
By focusing on available bandwidth (Option B), you ensure that the physical network can accommodate the additional overhead introduced by Geneve tunneling, thereby maintaining optimal performance and reliability in your NSX environment.


NEW QUESTION # 153
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