2023年12月 VMware 2V0-41.23実際の問題とブレーン問題集
2V0-41.23合格させる問題集でVMware24時間で試験合格できます
VMware 2V0-41.23 認定試験の出題範囲：
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質問 # 34
Which is an advantages of a L2 VPN In an NSX 4.x environment?
- A. Use the same broadcast domain
- B. Enables Multi-Cloud solutions
- C. Achieve better performance
- D. Enables VM mobility with re-IP
正解：A
解説：
Explanation
L2 VPN is a feature of NSX that allows extending Layer 2 networks across different sites or clouds over an IPsec tunnel. L2 VPN has an advantage of enabling VM mobility with re-IP, which means that VMs can be moved from one site to another without changing their IP addresses or network configurations. This is possible because L2 VPN allows both sites to use the same broadcast domain, which means that they share the same subnet and VLAN .
質問 # 35
A company Is deploying NSX micro-segmentation in their vSphere environment to secure a simple application composed of web. app, and database tiers.
The naming convention will be:
* WKS-WEB-SRV-XXX
* WKY-APP-SRR-XXX
* WKI-DB-SRR-XXX
What is the optimal way to group them to enforce security policies from NSX?
- A. Group all by means of tags membership.
- B. Use Edge as a firewall between tiers.
- C. Create an Ethernet based security policy.
- D. Do a service insertion to accomplish the task.
正解：A
解説：
Explanation
The answer is C. Group all by means of tags membership.
Tags are metadata that can be applied to physical servers, virtual machines, logical ports, and logical segments in NSX. Tags can be used for dynamic security group membership, which allows for granular and flexible enforcement of security policies based on various criteria1 In the scenario, the company is deploying NSX micro-segmentation to secure a simple application composed of web, app, and database tiers. The naming convention will be:
WKS-WEB-SRV-XXX
WKY-APP-SRR-XXX
WKI-DB-SRR-XXX
The optimal way to group them to enforce security policies from NSX is to use tags membership. For example, the company can create three tags: Web, App, and DB, and assign them to the corresponding VMs based on their names. Then, the company can create three security groups: Web-SG, App-SG, and DB-SG, and use the tags as the membership criteria. Finally, the company can create and apply security policies to the security groups based on the desired rules and actions2 Using tags membership has several advantages over the other options:
It is more scalable and dynamic than using Edge as a firewall between tiers. Edge firewall is a centralized solution that can create bottlenecks and performance issues when handling large amounts of traffic3 It is more simple and efficient than doing a service insertion to accomplish the task. Service insertion is a feature that allows for integrating third-party services with NSX, such as antivirus or intrusion prevention systems. Service insertion is not necessary for basic micro-segmentation and can introduce additional complexity and overhead.
It is more flexible and granular than creating an Ethernet based security policy. Ethernet based security policy is a type of policy that uses MAC addresses as the source or destination criteria. Ethernet based security policy is limited by the scope of layer 2 domains and does not support logical constructs such as segments or groups.
To learn more about tags membership and how to use it for micro-segmentation in NSX, you can refer to the following resources:
VMware NSX Documentation: Security Tag 1
VMware NSX Micro-segmentation Day 1: Chapter 4 - Security Policy Design 2 VMware NSX 4.x Professional: Security Groups VMware NSX 4.x Professional: Security Policies
質問 # 36
An administrator needs to download the support bundle for NSX Manager. Where does the administrator download the log bundle from?
- A. System > Utilities > Tools
- B. System > Support Bundle
- C. System > Settings
- D. System > Settings > Support Bundle
正解：B
解説：
Explanation
According to the VMware NSX Documentation, this is where you can download the support bundle for NSX Manager from the NSX UI:
System > Support Bundle: This option allows you to download a support bundle that contains logs, configuration files, and diagnostic information from your NSX Manager node and cluster. You can use this option to troubleshoot issues or provide information to VMware support.
https://docs.vmware.com/en/VMware-vSphere/7.0/vmware-vsphere-with-tanzu/GUID-794C691E-B950-4838-97
質問 # 37
Which VMware GUI tool is used to identify problems in a physical network?
- A. VMware Aria Operations Networks
- B. VMware Aria Orchestrator
- C. VMware Aria Automation
- D. VMware Site Recovery Manager
正解：A
解説：
Explanation
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.
質問 # 38
What are two valid options when configuring the scope of a distributed firewall rule? (Choose two.)
- A. Tier-1 Gateway
- B. DFW
- C. Segment
- D. Segment Port
- E. Group
正解：C、E
解説：
Explanation
C). Segment. This is correct. A segment is a logical construct that represents a layer 2 broadcast domain and a layer 3 subnet in NSX. A segment can be used to group and connect virtual machines, containers, or bare metal hosts that belong to the same application or service. A segment can also be used as the scope of a distributed firewall rule, which means that the rule will apply to all the traffic that enters or exits the segment12
E). Group. This is correct. 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
質問 # 39
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. Beacon Probing (BP)
- B. Bidirectional Forwarding Detection (BFD)
- C. Virtual Router Redundancy Protocol (VRRP)
- D. Host Standby Router Protocol (HSRP)
正解：B
解説：
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.
質問 # 40
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.
正解：
解説：
質問 # 41
Which two logical router components span across all transport nodes? (Choose two.)
- A. SERVICE_ROUTER_TIERl
- B. DISTRIBUTED_ROUTER_TIER0
- C. TIERO_DISTRI BUTE D_ ROUTER
- D. D1STRIBUTED_R0UTER_TIER1
- E. SFRVICE_ROUTER_TJER0
正解：B、D
解説：
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
質問 # 42
When a stateful service is enabled for the first lime on a Tier-0 Gateway, what happens on the NSX Edge node'
- A. DR Is instantiated and automatically connected with SR.
- B. SR is instantiated and automatically connected with DR.
- C. SR and DR Is instantiated but requites manual connection.
- D. SR and DR doesn't need to be connected to provide any stateful services.
正解：B
解説：
Explanation
The answer is A. SR is instantiated and automatically connected with DR.
SR stands for Service Router and DR stands for Distributed Router. They are components of the NSX Edge node that provide different functions1 The SR is responsible for providing stateful services such as NAT, firewall, load balancing, VPN, and DHCP.
The DR is responsible for providing distributed routing and switching between logical segments and the physical network1 When a stateful service is enabled for the first time on a Tier-0 Gateway, the NSX Edge node automatically creates an SR instance and connects it with the existing DR instance. This allows the stateful service to be applied to the traffic that passes through the SR before reaching the DR2 According to the VMware NSX 4.x Professional Exam Guide, understanding the SR and DR components and their functions is one of the exam objectives3 To learn more about the SR and DR components and how they work on the NSX Edge node, you can refer to the following resources:
* VMware NSX Documentation: NSX Edge Components 1
* VMware NSX 4.x Professional: NSX Edge Architecture
* VMware NSX 4.x Professional: NSX Edge Routing
質問 # 43
Which NSX feature can be leveraged to achieve consistent policy configuration and simplicity across sites?
- A. NSX MTML5 UI
- B. Ethernet VPN
- C. VRF Lite
- D. NSX Federation
正解：D
解説：
According to the VMware NSX Documentation, this is the NSX feature that can be leveraged to achieve consistent policy configuration and simplicity across sites:
NSX Federation: This feature allows you to create and manage a global network infrastructure that spans across multiple sites using a single pane of glass. You can use this feature to synchronize policies, segments, gateways, firewalls, VPNs, load balancers, and other network services across sites.
質問 # 44
Which two logical router components span across all transport nodes? (Choose two.)
- A. DISTRIBUTED_ROUTER_TIER0
- B. SERVICE_ROUTER_TIERl
- C. TIERO_DISTRI BUTE D_ ROUTER
- D. D1STRIBUTED_R0UTER_TIER1
- E. SFRVICE_ROUTER_TJER0
正解：C、D
解説：
Explanation
According to the VMware NSX 4.x Professional documents and tutorials, NSX-T has two logical router components, namely the Services Router (SR) and the Distributed Router (DR). As the names imply, SR is where centralized services are provisioned such as NAT, DHCP, VPN, Perimeter Firewall, Load Balancing, etc., and DR performs distributed routing across all hosts participating in a given transport zone3. The DR component is present in both Tier-0 and Tier-1 logical routers, while the SR component is only present in Tier-1 logical routers or in active-standby mode of Tier-0 logical routers4. Therefore, the logical router components that span across all transport nodes are TIER0_DISTRIBUTED_ROUTER and DISTRIBUTED_ROUTER_TIER1.
質問 # 45
Which command Is used to test management connectivity from a transport node to NSX Manager?
- A.
- B.
- C.
- D.
正解：C
解説：
According to the web search results, the command that is used to test management connectivity from a transport node to NSX Manager is get managers. This command displays the status, IP address, and thumbprint of the NSX Manager that the transport node is connected to. It also shows the connection state, which can be UP or DOWN. If the connection state is DOWN, it means that there is a problem with the management connectivity .
質問 # 46
What are three NSX Manager rotes? (Choose three.)
- A. zookeepet
- B. controller
- C. manager
- D. master
- E. cloud
- F. policy
正解：B、C、F
解説：
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.
質問 # 47
Which of the two following characteristics about NAT64 are true? (Choose two.)
- A. NAT64 requires the Tler-1 gateway to be configured in active-standby mode.
- B. NAT64 Is stateless and requires gateways to be deployed in active-stand by mode.
- C. NAT64 requires the Tier-1 gateway to be configured in active-active mode.
- D. NAT64 Is supported on Tler-0 and Tiet-l gateways.
- E. NAT64 is supported on Tier-1 gateways only.
正解：C、E
解説：
According to the VMware NSX Documentation, these are two of the characteristics of NAT64, which is a feature that allows IPv6-only workloads to communicate with IPv4-only servers:
NAT64 requires the Tier-1 gateway to be configured in active-active mode: You need to configure the tier-1 gateway in active-active mode to enable NAT64, as this mode supports stateless NAT operations. NAT64 is not supported on tier-1 gateways in active-standby mode, as this mode supports stateful NAT operations.
NAT64 is supported on Tier-1 gateways only: You can only configure NAT64 on tier-1 gateways, as they provide local services for segments. NAT64 is not supported on tier-0 gateways, as they provide global services for routing and connectivity.
質問 # 48
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. Beacon Probing (BP)
- B. Bidirectional Forwarding Detection (BFD)
- C. Virtual Router Redundancy Protocol (VRRP)
- D. Host Standby Router Protocol (HSRP)
正解：B
解説：
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.
質問 # 49
An NSX administrator is creating a Tier-1 Gateway configured In Active-Standby High Availability Mode. In the event of node failure, the failover policy should not allow the original tailed node to become the Active node upon recovery.
Which failover policy meets this requirement?
- A. Enable Preemptive
- B. Non-Preemptive
- C. Disable Preemptive
- D. Preemptive
正解：B
解説：
According to the VMware NSX Documentation, a non-preemptive failover policy means that the original failed node will not become the active node upon recovery, unless the current active node fails again. This policy can help avoid unnecessary failovers and ensure stability.
The other options are either incorrect or not available for this configuration. Preemptive is the opposite of non-preemptive, meaning that the original failed node will become the active node upon recovery, if it has a higher priority than the current active node. Enable Preemptive and Disable Preemptive are not valid options for the failover policy, as the failover policy is a drop-down menu that only has two choices: Preemptive and Non-Preemptive.
質問 # 50
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