VNX301認證指南 & VNX301软件版

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通過Versa Networks VNX301認證考試可以給你帶來很多改變。比如工作，生活，都會有很大的提升，因為畢竟VNX301考試是一個Versa Networks認證的相當重要的考試，但通過VNX301考試不是那麼簡單的。

Versa Networks VNX301 考試大綱：

主題簡介
主題 1
  • SD-WAN Infrastructure Administration: Focuses on day-to-day operational tasks including monitoring, troubleshooting, software management, and maintaining the health of the SD-WAN environment.
主題 2
  • Versa Secure SD-WAN Infrastructure: Focuses on the core components and architecture of Versa's SD-WAN platform, including controllers, directors, and secure connectivity between sites.
主題 3
  • Configuration and Provisioning: Covers how to deploy, configure, and onboard SD-WAN devices and services using Versa Director, including templates and zero-touch provisioning workflows.
主題 4
  • Underlay
  • Overlay Technologies: Covers the foundational transport networks (underlay) and the virtual networks built on top of them (overlay), including tunneling protocols used in SD-WAN deployments.

>> VNX301認證指南 <<

VNX301認證指南 | Versa Certified SD-WAN Specialist (VNX300)合法有效的通過利刃

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最新的 Administrator SD-WAN Specialist VNX301 免費考試真題 (Q38-Q43):

問題 #38
You configured a Versa speed-test server on a VOS device, but the client cannot start the bandwidth test. A firewall exists between the client and server. Which port must be allowed through the firewall?

答案：D

解題說明：
The correct answer is A . Versa link-bandwidth troubleshooting documentation explains that a VOS device can be configured as a Versa speed-test client, a Versa speed-test server, or both simultaneously. After the server is configured, the client starts the test by initiating a TCP-based connection toward the speed-test server. The server listens on port 5201 . The documentation includes an explicit note that if the VOS device is behind a firewall, port 5201 must be open .
This is different from the SD-WAN overlay data path, which commonly uses UDP-based transport encapsulation, and different from internet speed-test traffic, which uses other ports depending on the specific test type. In this scenario, the question states that a Versa speed-test server was configured, so the relevant requirement is TCP 5201 reachability from the client to the server.
TCP 443 may be used for management or web access, UDP 4790 is associated with SD-WAN transport encapsulation, and UDP 53 is DNS. None of those replace TCP 5201 for Versa speed-test server operation.


問題 #39
A CGNAT pool shows repeated alloc-failures and increasing free-failures . Which troubleshooting approach is most appropriate?

答案：C

解題說明：
The correct answer is A . Versa CGNAT troubleshooting documentation provides a clear workflow for CGNAT issues. It first describes how to view CGNAT summary information using show orgs org-services < org > cgnat summary. It then shows how to view per-pool statistics using show orgs org-services < org > cgnat pools < pool-name > statistics. The sample output includes counters such as bindings-allocated , bindings-freed , alloc-failures , free-failures , out-of-address-errors , and out-of-ports-errors .
If these counters indicate failures, the next step is to inspect CGNAT state inside the vsmd daemon, including tenant state, ACL matching, pools, bindings, and source-port resources. This helps determine whether the issue is pool exhaustion, rule mismatch, resource allocation failure, or stale runtime state.
OSPF may affect routing but does not explain CGNAT allocation counters. Analytics may store logs but is not the dataplane authority for NAT allocation. Rebooting Analytics would not resolve CGNAT resource programming on the VOS device.


問題 #40
A tenant has two internet circuits and one LTE backup circuit. The forwarding profile lists the internet circuits with priority 1 and LTE with priority 2. The next-hop selection method is Load Balance. What is the expected behavior while both internet circuits are healthy?

答案：A

解題說明：
The correct answer is A . In Versa SD-WAN forwarding profiles, next-hop priorities define which circuits are preferred. When the Load Balance next-hop selection method is used and two circuits share the same priority, sessions can be distributed across those equal-priority paths as long as they are usable and SLA- compliant. A lower priority number represents a more preferred group than a higher priority number.
Therefore, two circuits with priority 1 are preferred over LTE with priority 2 .
In this scenario, both internet circuits are healthy and both have priority 1. The VOS device should load- balance sessions across those two circuits. LTE remains available as a lower-priority backup path and would normally be considered only when the preferred internet circuits are unavailable, fail path checks, or no longer meet the applicable policy conditions.
Traffic is not replicated because replication is a separate feature and not implied by Load Balance. The branch does not drop traffic while valid paths exist. LTE is not preferred merely because its priority number is higher; in path selection, priority 1 is preferred over priority 2.


問題 #41
Examine the exhibit below.
Referring to the exhibit, which two statements are correct? (Choose two.)

答案：B,D

解題說明：
The correct answers are A and B . In the exhibit, the LAN interface shows a fixed VLAN ID value of 100 .
Because this value is directly configured in the template rather than represented as a per-device variable, every branch that uses this template will receive the same LAN VLAN ID. This supports option A. Versa configuration examples show that VLAN-tagged interfaces are created by defining logical units with a vlan- id, and organizations then use those tagged interfaces for traffic identification and routing services.
For the MPLS WAN network , the VLAN ID field is shown as a variable or bind-data style value rather than a fixed number. This allows each branch device to receive a different MPLS VLAN ID during onboarding, depending on the branch-specific values supplied in the workflow or device bind data. Therefore, branches can have separate VLAN IDs on the MPLS WAN transport, which supports option B. Versa SD-WAN troubleshooting output also shows WAN interfaces as logical VNI subinterfaces, such as vni-0/1.0 and vni-0/2.
0, mapped to SD-WAN transport networks like INET and MPLS.
Option C is incorrect because an INET interface can be untagged, commonly represented with VLAN ID 0. Option D is incorrect because the MPLS VLAN field is intentionally parameterized, not incorrectly configured.


問題 #42
A branch uses a template variable for the WAN VLAN ID. During deployment, Branch-A receives VLAN
100 and Branch-B receives VLAN 200 from device bind data while using the same template. Which statement is correct?

答案：A

解題說明：
The correct answer is A . Versa template-based provisioning is designed to separate common configuration from site-specific values. A device template can define common interface, service, routing, and SD-WAN behavior, while variables and device bind data provide unique values for each appliance. This allows the same template to be reused across many branches while assigning different WAN IP addresses, gateways, VLAN IDs, circuit names, or other per-site parameters during onboarding.
In this scenario, Branch-A and Branch-B use the same template but receive different WAN VLAN IDs from bind data. That is normal and expected in a scalable SD-WAN deployment. Without variables, administrators would need to create a separate template for every site, which would be operationally inefficient and increase configuration drift.
The Controller does not automatically rewrite VLAN IDs after IPsec comes up; VLAN IDs must be part of the generated device configuration. It is also not required to duplicate the device template for each branch. The correct Versa design is reusable templates plus unique bind-data values.


問題 #43
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