VMware 2V0-41.23 Online Practice Questions and Exam Preparation

VMware 2V0-41.23 Online Questions & Answers

• Question 41:

  Which three DHCP Services are supported by NSX? (Choose three.)

  A. Gateway DHCP
  B. Port DHCP per VNF
  C. Segment DHCP
  D. VRF DHCP Server
  E. DHCP Relay
  A. Gateway DHCP
  C. Segment DHCP
  E. DHCP Relay

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  Explanation/Reference:

  According to the VMware NSX Documentation1, NSX-T Data Center supports the following types of DHCP configuration on a segment:

  Local DHCP server: This option creates a local DHCP server that has an IP address on the segment and provides dynamic IP assignment service only to the VMs that are attached to the segment.

  Gateway DHCP server: This option is attached to a tier-0 or tier-1 gateway and provides DHCP service to the networks (overlay segments) that are directly connected to the gateway and configured to use a gateway DHCP server. DHCP

  Relay: This option relays the DHCP client requests to the external DHCP servers that can be in any subnet, outside the SDDC, or in the physical network.

  https://docs.vmware.com/en/VMware-NSX/4.0/administration/GUID-486C1281-C6CF-47EC-B2A2-0ECFCC4A68CE.html

• Question 42:

  Which choice is a valid insertion point for North-South network introspection?

  A. Guest VM vNIC
  B. Partner SVM
  C. Tier-0 gateway
  D. Host Physical NIC
  A. Guest VM vNIC

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  Explanation/Reference:

  Reference: https://www.ramyafifi.com/post/micro-segmentation-with-nsx-data-center#:~:text=With%20East%2DWest%20Service%20Insertion,or%20in%20a%20Service %20cluster

• Question 43:

  Which command is used to display the network configuration of the Tunnel Endpoint (TEP) IP on a bare metal transport node?

  A. tepconfig
  B. ifconfig
  C. tcpdump
  D. debug
  B. ifconfig

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  Explanation/Reference:

  The command ifconfig is used to display the network configuration of the Tunnel Endpoint (TEP) IP on a bare metal transport node2. The TEP IP is assigned to a network interface on the bare metal server that is used for overlay traffic. The ifconfig command can show the IP address, netmask, broadcast address, and other information of the network interface. For example, the following command shows the network configuration of the TEP IP on a bare metal transport node with interface name ens192: ifconfig ens192 The output of the command would look something like this: ens192: flags=4163 mtu 1500 inet 10.10.10.10 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::250:56ff:fe9a:1b8c prefixlen 64 scopeid 0x20 ether 00:50:56:9a:1b:8c txqueuelen 1000 (Ethernet) RX packets 123456 bytes 123456789 (123.4 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 234567 bytes 234567890 (234.5 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

  The TEP IP in this example is 10.10.10.10.

  References:

  IBM Cloud Docs

• Question 44:

  Which two statements are true about IDS Signatures? (Choose two.)

  A. Users can upload their own IDS signature definitions.
  B. An IDS signature contains data used to identify known exploits and vulnerabilities.
  C. An IDS signature contains data used to identify the creator of known exploits and vulnerabilities.
  D. IDS signatures can be High Risk, Suspicious, Low Risk and Trustworthy.
  E. An IDS signature contains a set of instructions that determine which traffic is analyzed.
  B. An IDS signature contains data used to identify known exploits and vulnerabilities.
  E. An IDS signature contains a set of instructions that determine which traffic is analyzed.

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  Explanation/Reference:

  According to the Network Bachelor article1, an IDS signature contains data used to identify an attacker's attempt to exploit a known vulnerability in both the operating system and applications. This implies that statement B is true. According to the VMware NSX Documentation2, IDS/IPS Profiles are used to group signatures, which can then be applied to select applications and traffic. This implies that statement E is true. Statement A is false because users cannot upload their own IDS signature definitions, they have to use the ones provided by VMware or Trustwave3. Statement C is false because an IDS signature does not contain data used to identify the creator of known exploits and vulnerabilities, only the exploits and vulnerabilities themselves. Statement D is false because IDS signatures are classified into one of the following severity categories: Critical, High, Medium, Low, or Informational1. Reference: 3: Distributed IDS/IPS Settings and Signatures-VMware Docs 2: Distributed IDS/IPS-VMware Docs 1: NSX-T: Exploring Distributed IDS-Network Bachelor

• Question 45:

  What are two supported host switch modes? (Choose two.)

  A. DPDK Datapath
  B. Enhanced Datapath
  C. Overlay Datapath
  D. Secure Datapath
  E. Standard Datapath
  B. Enhanced Datapath
  E. Standard Datapath

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  Explanation/Reference:

  The host switch modes determine how the NSX network and security stack is allocated on the underlying host CPU or DPU. There are two supported host switch modes: Enhanced Datapath and Standard Datapath1. Enhanced Datapath mode leverages the DPU to offload the NSX datapath processing from the host CPU, while Standard Datapath mode uses the host CPU for the NSX datapath processing1. DPDK Datapath, Overlay Datapath, and Secure Datapath are not valid host switch modes for NSX 4.x. References: NSX Features

• Question 46:

  A customer has a network where BGP has been enabled and the BGP neighbor is configured on the Tier-0 Gateway. An NSX administrator used the get gateways command to retrieve this Information: Which two commands must be executed to check BGP neighbor status? (Choose two.)

  

  A. vrf 1
  B. vrf 4
  C. sa-nexedge-01(tier1_sr> get bgp neighbor
  D. sa-nexedge-01(tier0_sr> get bgp neighbor
  E. sa-nexedge-01(tier1_dr)> get bgp neighbor
  F. vrf 3
  D. sa-nexedge-01(tier0_sr> get bgp neighbor
  F. vrf 3

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  Explanation/Reference:

  BGP will be configured on the T0 SR. Connect to the VRF for the T0 SR and run get bgp neighbor once connected to it. https://docs.vmware.com/en/VMware-Validated-Design/5.1/sddc-deployment-of-vmware-nsx-t-workload-domains-withmultiple-availability-zones/GUID-8BD4228A-75C6-4C60-80B4-538D4297E11A.html For the BGP configuration on NSX-T, the Tier-0 Service Router (SR) is typically where BGP is configured. To check the BGP neighbor status:

  Connect to the VRF for the T0 SR, which is VRF 3 based on the provided output. Run the command to get BGP neighbor status once connected to it.

• Question 47:

  Which of the following settings must be configured in an NSX environment before enabling stateful active-active SNAT?

  A. Tier-1 gateway in active-standby mode
  B. Tier-1 gateway in distributed only mode
  C. An Interface Group for the NSX Edge uplinks
  D. A Punting Traffic Group for the NSX Edge uplinks
  C. An Interface Group for the NSX Edge uplinks

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  Explanation/Reference:

  To enable stateful active-active SNAT on a Tier-0 or Tier-1 gateway, you must configure an Interface Group for the NSX Edge uplinks. An Interface Group is a logical grouping of NSX Edge interfaces that belong to the same failure domain. A failure domain is a set of NSX Edge nodes that share the same physical network infrastructure and are subject to the same network failures. By configuring an Interface Group, you can ensure that the stateful services are distributed across different failure domains and can recover from network failures1

• Question 48:

  Which CLI command on NSX Manager and NSX Edge is used to change NTP settings?

  A. get timezone
  B. get time-server
  C. set timezone
  D. set ntp-server
  D. set ntp-server

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  Explanation/Reference:

  The CLI command on NSX Manager and NSX Edge that is used to change NTP settings is set ntp-server. This command allows the user to configure one or more NTP servers for time synchronization12. The other options are incorrect because they are not valid CLI commands for changing NTP settings. The get timezone and set timezone commands are used to display and configure the timezone of the system1. The get time-server command is used to display the current time server configuration1. There are no CLI commands for using RADIUS or BootP for NTP settings. References: NSX-T Command-Line Interface Reference, vSphere ESXi 7.0 U3 and later versions NTP configuration steps Reference: https://vdc-download.vmware.com/vmwb-repository/dcr-public/ffedf5e0-6b2d-4aad-87ab-1045cd6e8233/b1529ef2-8250-497a-8cee-20947fba5072/NSX-T%20CommandLine%20Interface%20Reference.html#set%20timezone%20%3Ctimezone%3E

• Question 49:

  Which table on an ESXi host is used to determine the location of a particular workload for a frame-forwarding decision?

  A. TEP Table
  B. MAC Table
  C. ARP Table
  D. Routing Table
  B. MAC Table

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  Explanation/Reference:

  The MAC table on an ESXi host is used to determine the location of a particular workload for a frame-forwarding decision. The MAC table maps the MAC addresses of the workloads to their corresponding tunnel endpoint (TEP) IP addresses. The TEP IP address identifies the ESXi host where the workload resides. The MAC table is populated by learning the source MAC addresses of the incoming frames from the workloads. The MAC table is also synchronized with other ESXi hosts in the same transport zone by using the NSX Controller. https://nsx.techzone.vmware.com/resource/nsx-reference-design-guide Reference: https://www.oreilly.com/library/view/mastering-vmware-vsphere/9781787286016/6e81703b-29e7-4249-a823-1ba6a17d7f3a.xhtml

• Question 50:

  Which VMware GUI tool is used to identify problems in a physical network?

  A. VMware Aria Automation
  B. VMware Aria Orchestrator
  C. VMware Site Recovery Manager
  D. VMware Aria Operations Networks
  D. VMware Aria Operations Networks

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  Explanation/Reference:

  According to the web search results, VMware Aria Operations Networks (formerly vRealize Network Insight) is a network monitoring tool that can help monitor, discover and analyze networks and applications across clouds1. It can also provide enhanced troubleshooting and visibility for physical and virtual networks2. The other options are either incorrect or not relevant for identifying problems in a physical network. VMware Aria Automation is a cloud automation platform that can help automate the delivery of IT services. VMware Aria Orchestrator is a cloud orchestration tool that can help automate workflows and integrate with other systems. VMware Site Recovery Manager is a disaster recovery solution that can help protect and recover virtual machines from site failures.