참고: DumpTOP에서 Google Drive로 공유하는 무료 2026 VMware 3V0-25.25 시험 문제집이 있습니다: https://drive.google.com/open?id=1m2Lhl5_zCK44mMInWFJm_kZyIUJ9yyo1
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>> VMware 3V0-25.25최신 인증시험 덤프데모 <<
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질문 # 62
An administrator is troubleshooting intermittent connectivity failures between two workloads connected to NSX VLAN segments using Traceflow. In-band Network Telemetry (INT) has been enabled in the NSX Global Configuration. How does Traceflow identify issues in a VLAN network?
정답：A
설명：
Comprehensive and Detailed 250 to 350 words of Explanation From VMware Cloud Foundation (VCF) documents:
InVMware Cloud Foundation (VCF)and NSX,Traceflowis a powerful diagnostic tool designed to provide visibility into the logical and physical path of a packet as it traverses the SDDC. Unlike standard ping or traceroute utilities that use real ICMP traffic from the Guest OS, Traceflow operates byinjecting synthetic trafficdirectly into the data plane at the source point (usually the vNIC of a Virtual Machine).
When Traceflow is initiated, the NSX Manager creates a "trace packet" that mimics the characteristics of the traffic being investigated (such as TCP, UDP, or ICMP with specific headers). This synthetic packet is marked with a special metadata tag. As the packet moves through the virtual switches (VDS), logical routers (DR/SR), and distributed firewalls (DFW) on the ESXi Transport Nodes, each component recognizes the tag and reports an "observation" back to theCentral Control Plane (CCP). The CCP then aggregates these observations and presents them in the NSX Manager UI.
ForVLAN-backed segments, Traceflow functions similarly to how it works on Overlay segments. It tracks the packet as it is switched at Layer 2 and processed by any applicable distributed services. The inclusion of In-band Network Telemetry (INT)in modern VCF versions (5.x and 9.0) enhances this by allowing the synthetic packet to collect telemetry data from INT-capable physical switches in the fabric. This provides a
"hop-by-hop" view that includes both the virtual and physical segments of the journey.
Option A is incorrect because Traceflow is not limited to ICMP; it can simulate various protocols. Option C is incorrect as Traceflow fully supports VLAN segments. Option D is incorrect as it describes a state- comparison mechanism rather than the active injection process that defines Traceflow. Therefore, the injection of synthetic traffic to observe data plane behavior via the control plane is the verified mechanism.
질문 # 63
An administrator is tasked to configure NSX Federation between separate VMware Cloud Foundation (VCF) Fleets. Which requirement must all sites meet before being added to a Global Manager (GM) for NSX Federation?
정답：B
설명：
Comprehensive and Detailed 250 to 350 words of Explanation From VMware Cloud Foundation (VCF) documents:
NSX Federation, a core component of large-scale VCF deployments across multiple sites or "fleets," introduces a hierarchical management model where aGlobal Manager (GM)orchestrates security policies and networking objects across multipleLocal Managers (LMs).
To ensure stability and compatibility in the communication between the Global Manager and the Local Managers, VMware documentation specifies strictversion parityrequirements. When onboarding a site into a Federation, the Local Manager at that site must be running thesame NSX version and buildas the other sites in the Federation and must be compatible with the Global Manager's version. Discrepancies in versions can lead to synchronization failures, as the API schemas and internal database structures for Global Objects (like Global Segments or Groups) may differ between builds.
While Federation allows for geographic and administrative separation, the underlying software-defined networking stack must be synchronized. Option A is incorrect; in fact, VTEP/TEP VLANs and IP poolsshould be unique to each site to avoid IP conflicts in the transport network, though they must have Layer 3 reachability to one another. Option B is incorrect; unique BGP AS numbers are often preferred for multi-site routing to prevent loops. Option C is also incorrect, as Federation is specifically designed to link different VCF instances (sites) together into a single manageable entity.
In aVCF 5.x or 9.0context, the SDDC Manager helps maintain this requirement by ensuring that the "Bill of Materials" (BOM) is consistent across sites intended for Federation. Before the GM can successfully register and "push" configuration to an LM, the handshake process validates the build version to prevent the corruption of the global intended state.
질문 # 64
An administrator must prevent a new VPC from exporting any of its prefixes to the datacenter while still receiving a default route. Where should the routing policy be applied?
정답：A
설명：
Comprehensive and Detailed 250 to 350 words of Explanation From VMware Cloud Foundation (VCF) documents:
In the advanced networking architecture ofVMware Cloud Foundation (VCF) 9.0and the evolution ofNSX VPCs, the control of route propagation is managed through the relationship between the consumer (the VPC) and the provider (the Tier-0 or Tier-1 Gateway). When a VPC is created, it is logically connected to the provider's infrastructure via aTransit Gateway(or a Provider-side logical router acting as a transit point).
To control the flow of routing information-specifically to prevent the data center's physical network from learning about internal VPC subnets (prefixes) while ensuring the VPC can still reach the outside world via a default route-the routing policy must be applied at the point of intersection. TheTransit Gatewayserves as this demarcation point. By applying a route filter or prefix list on the Transit Gateway, the administrator can explicitly deny the advertisement of internal VPC prefixes "upstream" to the provider's BGP process.
Simultaneously, the provider can still inject or "advertise" a default route ($0.0.0.0/0$) "downstream" into the VPC.
Applying the policy on theVPC Gateway Firewall(Option D) would impact the data plane (blocking traffic) but would not prevent the routing table from being populated. TheBGP peer template(Option C) is too broad, as it would likely affect all VPCs connected to that provider, rather than just the "new VPC" in question. Thedefault route advertiser(Option A) only controls the egress of the default route, not the suppression of internal prefixes. Therefore, the Transit Gateway is the verified location for granular route control in a multi-tenant VCF VPC environment.
질문 # 65
An administrator has observed an NSX Local Manager (LM) outage at the secondary Site. However, the NSX Global Manager (GM) in secondary Site remains operational. What happens to data plane operations and policy enforcement at the secondary site?
정답：B
설명：
Comprehensive and Detailed 250 to 350 words of Explanation From VMware Cloud Foundation (VCF) documents:
The architecture ofNSX Federationwithin a VCF Multi-Site design is built upon a separation of theControl Planeand theData Plane. This "decoupled" architecture ensures high availability and resiliency even when management components become unavailable.
In NSX Federation, theGlobal Manager (GM)handles the configuration of objects that span multiple locations, while theLocal Manager (LM)is responsible for pushing those configurations down to the local Transport Nodes (ESXi hosts and Edges) within its specific site. When a configuration is pushed, the Local Manager communicates with theCentral Control Plane (CCP)and subsequently theLocal Control Plane (LCP)on the hosts.
If an NSX Local Manager goes offline, the "Management Plane" for that site is lost. This means no new segments, routers, or firewall rules can be created or modified at that site. However, the existing configuration is already programmed into theData Plane(the kernels of the ESXi hosts and the DPDK process of the Edge nodes).
According to VMware's "NSX Multi-Location Design Guide," the data plane remains fully operational during a Management Plane outage. Existing VMs will continue to communicate, BGP sessions on the Edges will remain established, and Distributed Firewall (DFW) rules will continue to be enforced based on the last known good configuration state cached on the hosts. The data plane does not require constant heartbeats from the Local Manager to forward traffic. Therefore, operations continue normally "headless" until the LM is restored and can resume synchronization with the Global Manager and local hosts. Failover to a primary site (Option D) is only necessary if the actual data plane (hosts/storage) fails, not just the management components.
질문 # 66
An administrator changed the SFTP server used for scheduled NSX Manager backups. The backup jobs now fail with the error "Host KEY Verification Failed." The connectivity and credentials are correct. How would an administrator resolve the error?
정답：B
설명：
Comprehensive and Detailed 250 to 350 words of Explanation From VMware Cloud Foundation (VCF) documents:
InVMware Cloud Foundation (VCF), theNSX Manageruses the SFTP protocol to securely transfer configuration backups to an external repository. SFTP is built on top of the SSH protocol, which relies on a
"Trust on First Use" (TOFU) model for verifying the identity of the remote host.
When an NSX Manager first connects to an SFTP server, it retrieves the server'sSSH Public Key Fingerprint and stores it in its local known_hosts equivalent database. This fingerprint ensures that future connections are made to the same, verified server, preventing man-in-the-middle attacks.
The error"Host KEY Verification Failed"occurs when the administrator changes the SFTP server (or if the SFTP server's OS was reinstalled/keys regenerated). Even if the IP address remains the same, the new server presents a different SSH fingerprint than the one currently cached in the NSX Manager configuration.
Because the signatures do not match, the NSX Manager aborts the connection for security reasons.
To resolve this issue, the administrator mustUpdate the SSH fingerprint(Option B) within the NSX Manager backup settings. This involves:
* Retrieving the new fingerprint from the SFTP server (e.g., via ssh-keyscan).
* Navigating to System > Lifecycle > Backup & Restore in the NSX Manager.
* Editing the File Server configuration and pasting the new fingerprint into the appropriate field.
Option A is incorrect as it does not address the SSH protocol handshake failure. Option C is incorrect because SFTP/SSH uses fingerprints, not SSL/TLS certificates. Option D is irrelevant as it changes the source
/destination of the connection but does not fix the underlying trust mismatch. Therefore, updating the fingerprint is the verified operational step to restore the automated backup workflow in VCF.
질문 # 67
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3V0-25.25최신 시험 최신 덤프: https://www.dumptop.com/VMware/3V0-25.25-dump.html
참고: DumpTOP에서 Google Drive로 공유하는 무료, 최신 3V0-25.25 시험 문제집이 있습니다: https://drive.google.com/open?id=1m2Lhl5_zCK44mMInWFJm_kZyIUJ9yyo1