VMware 2V0-41.23 VMware NSX 4.x Professional Online Training
VMware 2V0-41.23 Online Training
The questions for 2V0-41.23 were last updated at May 17,2024.
- Exam Code: 2V0-41.23
- Exam Name: VMware NSX 4.x Professional
- Certification Provider: VMware
- Latest update: May 17,2024
How is the RouterLink port created between a Tier-1 Gateway and Tler-0 Gateway?
- A . Manually create a Logical Switch and connect to bother Tler-1 and Tier-0 Gateways.
- B . Automatically created when Tler-1 is created.
- C . Manually create a Segment and connect to both Titrr-1 and Tier-0 Gateways.
- D . Automatically created when Tier-t Is connected with Tier-0 from NSX UI.
D
Explanation:
According to the VMware NSX 4.x Professional documents and tutorials, a RouterLink port is a logical port that connects a Tier-1 gateway to a Tier-0 gateway. This port is automatically created when a Tier-1 gateway is associated with a Tier-0 gateway from the NSX UI or API. The RouterLink port enables routing between the two gateways and carries all the routing protocols and traffic. There is no need to manually create a logical switch or segment for this purpose1.
What are three NSX Manager roles? (Choose three.)
- A . master
- B . cloud
- C . zookeepet
- D . manager
- E . policy
- F . controller
DEF
Explanation:
According to the VMware NSX 4.x Professional documents and tutorials, an NSX Manager is a standalone appliance that hosts the API services, the management plane, control plane, and policy management. The NSX Manager has three built-in roles: policy, manager, and controller2. The policy role handles the declarative configuration of the system and translates it into desired state for the manager role. The manager role receives and validates the configuration from the policy role and stores it in a distributed persistent database. The manager role also publishes the configuration to the central control plane. The controller role implements the central control plane that computes the network state based on the configuration and topology information3. The other roles (master, cloud, and zookeeper) are not valid NSX Manager roles.
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
AE
Explanation:
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
Which two statements are true for IPSec VPN? (Choose two.)
- A . VPNs can be configured on the command line Interface on the NSX manager.
- B . IPSec VPN services can be configured at Tler-0 and Tler-1 gateways.
- C . IPSec VPNs use the DPDK accelerated performance library.
- D . Dynamic routing Is supported for any IPSec mode In NSX.
BC
Explanation:
According to the VMware NSX 4.x Professional documents and tutorials, IPSec VPN secures traffic flowing between two networks connected over a public network through IPSec gateways called endpoints. NSX Edge supports a policy-based or a route-based IPSec VPN. Beginning with NSX-T Data Center 2.5, IPSec VPN services are supported on both Tier-0 and Tier-1 gateways1. NSX Edge also leverages the DPDK accelerated performance library to optimize the performance of IPSec VPN2. https://docs.vmware.com/en/VMware-NSX/4.0/administration/GUID-7D9F7199-E51B-478B-A8BC-58AD5BBAA0F6.html
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
CD
Explanation:
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.hydra1303.com/nsx-t-routing-part-i#:~:text=Logical%20routing%20in%20NSX%2DT,using%20static%20routes%20or%20BGP
https://www.delltechnologies.com/asset/en-us/products/converged-infrastructure/technical-support/docu96042.pdf
An NSX administrator wants to create a Tler-0 Gateway to support equal cost multi-path (ECMP) routing.
Which failover detection protocol must be used to meet this requirement?
- A . Bidirectional Forwarding Detection (BFD)
- B . Virtual Router Redundancy Protocol (VRRP)
- C . Beacon Probing (BP)
- D . Host Standby Router Protocol (HSRP)
A
Explanation:
According to the VMware NSX 4.x Professional documents and tutorials, BFD is a failover detection protocol that provides fast and reliable detection of link failures between two routing devices. BFD can be used with ECMP routing to monitor the health of the ECMP paths and trigger a route change in case of a failure12. BFD is supported by both BGP and OSPF routing protocols in NSX-T3. BFD can also be configured with different timers to achieve different detection times3.
HOTSPOT
Refer to the exhibit.
An administrator configured NSX Advanced Load Balancer to load balance the production web server traffic, but the end users are unable to access the production website by using the VIP address.
Which of the following Tier-1 gateway route advertisement settings needs to be enabled to resolve the problem? Mark the correct answer by clicking on the image.
To mark the correct answer by clicking on the image, you can click on the toggle switch next to All LB VIP Routes to turn it on. The switch should change from gray to blue, indicating that the option is enabled. See the image below for reference:
Which TraceFlow traffic type should an NSX administrator use tor validating connectivity between App and DB virtual machines that reside on different segments?
- A . Multicast
- B . Unicast
- C . Anycast
- D . Broadcast
B
Explanation:
Unicast is the traffic type that an NSX administrator should use for validating connectivity between App and DB virtual machines that reside on different segments. According to the VMware documentation1, unicast traffic is the traffic type that is used to send a packet from one source to one destination. Unicast traffic is the most common type of traffic in a network, and it is used for applications such as web browsing, email, file transfer, and so on2. To perform a traceflow with unicast traffic, the NSX administrator needs to specify the source and destination IP addresses, and optionally the protocol and related parameters1. The traceflow will show the path of the packet across the network and any observations or errors along the way3. The other options are incorrect because they are not suitable for validating connectivity between two specific virtual machines. Multicast traffic is the traffic type that is used to send a packet from one source to multiple destinations simultaneously2. Multicast traffic is used for applications such as video streaming, online gaming, and group communication4. To perform a traceflow with multicast traffic, the NSX administrator needs to specify the source IP address and the destination multicast IP address1. Broadcast traffic is the traffic type that is used to send a packet from one source to all devices on the same subnet2. Broadcast traffic is used for applications such as ARP, DHCP, and network discovery. To perform a traceflow with broadcast traffic, the NSX administrator needs to specify the source IP address and the destination MAC address as FF:FF:FF:FF:FF:FF1. Anycast traffic is not a valid option, as it is not supported by NSX Traceflow. Anycast traffic is a traffic type that is used to send a packet from one source to the nearest or best destination among a group of devices that share the same IP address. Anycast traffic is used for applications such as DNS, CDN, and load balancing.
Which command is used to set the NSX Manager’s logging-level to debug mode for troubleshooting?
- A . Set service manager log-level debug
- B . Set service manager logging-level debug
- C . Set service nsx-manager log-level debug
- D . Set service nsx-manager logging-level debug
B
Explanation:
According to the VMware Knowledge Base article 1, the CLI command to set the log level of the NSX Manager to debug mode is set service manager logging-level debug. This command can be used when the NSX UI is inaccessible or when troubleshooting issues with the NSX Manager1. The other commands are incorrect because they either use a wrong syntax or a wrong service name. The NSX Manager service name is manager, not nsx-manager2. The log level parameter is logging-level, not log-level3.
https://kb.vmware.com/s/article/55868
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
BE
Explanation:
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.