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5V0-41.20 Real Exam Questions

VMware SD-WAN Troubleshoot

36 questions available · Page 1 of 4

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Question 1 Single choice

Scenario 2:

After completing the branch activation activities for all required branches, the network administrator attempts to test connectivity between the various branches and between the hubs and branches. The administrator notices a lack of connectivity despite being certain that configurations have been complete.
The administrator also observed that several users are reporting intermittent connectivity to some of the applications they are accessing. Other users are reporting no access to these applications. Other users at some of the branches claim they cannot get to certain public resources. The administrator wants to ensure that all sites can talk to each other and all resources are accessible.

Exhibit.

The SD-WAN Edge at this location has been activated. It is incapable of establishing any overlay tunnels.
Due to this being an internet only branch, no underlay connectivity is present to the hubs. The SD-WAN Edge is connected behind a firewall and the security team states that all necessary ports are open.

How can this issue be resolved?

  1. A

    The security team needs to open TCP port 4500 instead of TCP port 2426.

  2. B

    The security team need to open TCP port 2426 outbound but not inbound.

  3. C

    The security team needs to open TCP port 22 instead of TCP port 2426.

  4. D

    The security team needs to open UDP port 2426 outbound and inbound.

Show answer and explanation

Correct answer: D

Question 2 Single choice

Scenario 2:

After completing the branch activation activities for all required branches, the network administrator attempts to test connectivity between the various branches and between the hubs and branches. The administrator notices a lack of connectivity despite being certain that configurations have been complete.
The administrator also observed that several users are reporting intermittent connectivity to some of the applications they are accessing. Other users are reporting no access to these applications. Other users at some of the branches claim they cannot get to certain public resources. The administrator wants to ensure that all sites can talk to each other and all resources are accessible.

Exhibit.

Several reports have come in from branch locations indicating customers cannot reach applications being served by the hub location. The hub location has a single LAN-side port from which it should be learning dynamic routes for the subnets serving the applications.

How should the technician verify if the ports on the Edge are up and working?

  1. A

    Look under Administration and System Settings to verify if the interfaces are configured and enabled.

  2. B

    Look in Test & Troubleshoot under the Remote Diagnostics and run Interface status.

  3. C

    Look in Test & Troubleshoot under the Remote Actions and run System Health.

  4. D

    Look in Test & Troubleshoot under the Remote Diagnostics and run System Health.

Show answer and explanation

Correct answer: B

Question 3 Single choice

Scenario 1:

The Dallas Branch location is having issues getting activated. The local network administrator is aware that the Edge device received a DHCP address and was able to connect to the internet. The Orchestrator is reporting the Edge as Down. No other changes were made post activation.

A network administrator is tasked with enabling SD-WAN at three branch locations. A topology has been provided for reference. For each site, the administrator is having issues bringing edges

online, as another administrator has gone ahead and created a configuration ahead of time. The organization has several branch sites. One is am Internet-only site and two are Hybrid locations with both internet and MPLS. The last location is MPLS only. There are hub data center locations in this environment as well. Please refer to the topology.

Refer to the Exhibit(s).

What is the cause of this issue?

  1. A

    The activation link did not specify the updated image location requiring the Edge to be re-activated.

  2. B

    The activation link did not contain any post-activation configuration to allow the Orchestrator to communicate with the Edge.

  3. C

    The Edge will be offline for about 4 hours until it has completed the factory image installation.

  4. D

    The activation link contained incorrect configurations for WAN overlays and WAN interfaces.

Show answer and explanation

Correct answer: A

Question 4 Single choice

Scenario:1

A network administrator is tasked with enabling SD-WAN at three branch locations, A topology has been provided for reference. For each site, the administrator is having issues bringing edges online, as another

administrator has gone ahead and created a configuration ahead of time. The organization has several branch sites. One is an Internet-only site and two are Hybrid locations with both internet and MPLS. The last location is MPLS only. There are hub data center in this environment as well. Please refer to the topology.

Exhibit.

One of the Edges at the Chicago site is unable to activate. The Edge has a red LED.

What is the next troubleshooting step?

  1. A

    If the Edge is connected to its HA peer, determine if there is a link-light on the HA peer-link.

  2. B

    If the Edge is connected to the MPLS circuit, determine if the Hub is advertising gateway routes.

  3. C

    If the Edge is connected to the MPLS circuit which does not have DHCP, determine if there is a static IP configuration that needs to be applied upon activation.

  4. D

    If the Edge is connected to its HA peer, determine if underlay BGP peering is present between the two Edges.

Show answer and explanation

Correct answer: C

Question 5 Single choice

Scenario 2:

After completing the branch activation for all required branches, the network administrator attempts to test connectivity between the various branches and between hubs and branches. The administrator notices a lack of connectivity despite being certain that configurations have been complete. The administrator also observed that several users are reporting intermittent connectivity to some of the some applications they are accessing. Other users are reporting no access to these applications. Other users at some of the branches claim they cannot get to certain public resources. The administrator wants to ensure that all sites can talk to each other and all resources are accessible.

Exhibit.

A technician has added Edges to an East Coast Profile. These Edges are not able to communicate via dynamic tunnels to Edges in the West_Coast profile. The technician has noticed that some Edges are able to establish dynamic tunnels.

What could be preventing Edges from being able to establish dynamic tunnels?

  1. A

    The profiles are not configured to allow dynamic branch to branch VPNs.

  2. B

    The profiles are configured to only allow dynamic branch to branch for Edges within the same profile.

  3. C

    None of the existing profiles have Cloud VPN enabled thus preventing dynamic tunnels.

  4. D

    Neither profile has been configured to utilize cloud gateways.

Show answer and explanation

Correct answer: B

Question 6 Single choice

Scenario 2:

After completing the branch activation activities for ail required branches, the network administrator attempts to test connectivity between the various branches and between the hubs and branches. The administrator notices a lack of connectivity despite being cert configurations have been complete. The administrator also observed that several reporting intermittent connectivity to some of the applications they are accessing. Other users are reporting no access to these applications. Other users at some of the branches claim they cannot get to certain public resources. The administrator wants to ensure that all sites can talk to each other and all resources are accessible.

Exhibit.

A network administrator has been told that Dallas needs some high-availability in the event that the SD-WAINJ Edge goes offline for whatever reason. There is limited budget so the administrator must use the other available CE router as a fallback mechanism. The administrator will use VRRP to provide HA. When configuring VRRP, the SD-WAN Edge service restarted.

What caused this behavior?

  1. A

    The administrator failed to specify the Edge Type as a VeloCloud Cluster.

  2. B

    This is an expected behavior.

  3. C

    The device is faulty and will need a replacement.

  4. D

    The administrator failed to specify the Edge Type as a VeloCloud Active Standby Pair.

Show answer and explanation

Correct answer: B

Question 7 Single choice

Scenario 2:

After completing the branch activation activities for all required branches, the network administrator attempts to test connectivity between the various branches and between the hubs and branches. The administrator notices a lack of connectivity despite being certain that configurations have been complete.
The administrator also observed that several users are reporting intermittent connectivity to some of the applications they are accessing. Other users are reporting no access to these applications. Other users at some of the branches claim they cannot get to certain public resources. The administrator wants to ensure that all sites can talk to each other and all resources are accessible.

Exhibit.

Users at the London site are complaining of various intermittent issues around websites not loading, or applications being remotely accessed disconnecting sporadically and reconnecting after a few minutes.
The network administrator does not see anything strange on the Edge overview page and decides to check if the CPU or memory have been hitting close to 100?

Where should the administrator verify this information?

  1. A

    In the VCO > Test 8c Troubleshoot > Remote Diagnostics > System Status

  2. B

    In the VCO > Monitor > Click London_Site01 > Click the System Tab

  3. C

    In the VCO > Remote Troubleshooting > Remote Actions > System Status

  4. D

    In the VCO > Monitor > Alerts

Show answer and explanation

Correct answer: B

Question 8 Single choice

Scenario 3:

After resolving numerous connectivity issues throughout the various branch sites, connectivity between applications and users is finally present. The network administrator is informed that during certain tests, applications are not performing as they are expected to. Users report that call quality has not fully improved and that some of their calls either drop or have poor voice quality where the conversation is breaking up. Other users are noticing that file transfers are slower than expect. A group of users from a few sites have reported slowness in accessing internal and external applications.

Exhibit.

Users at the Dallas Branch are complaining that downloads/uploads from Office365 are slow. Working in Teams has been providing slow responses. The Internet circuit is 100Mbps while the MPLS Circuit is 45Mbps. Upon troubleshooting, the network administrator has noticed the traffic is Backhauling through the Seattle hub for all internet traffic.

How should the network administrator resolve the issue?

  1. A

    Leave the system as is, the gateways will resolve the issues after doing 15 minutes of link qualification.

  2. B

    Advertise public routes to Office365 and Teams through the New York Hub.

  3. C

    Leave the system as is, the hubs will auto-rebalance tunnels after doing 15 minutes of link qualification.

  4. D

    Prevent the hub from advertising a default route.

Show answer and explanation

Correct answer: B

Question 9 Multiple choice

Scenario 3:

After resolving numerous connectivity issues throughout the various branch sites, connectivity between applications and users is finally present. The network administrator is informed that during certain tests, applications are not performing as they are expected to. Users report that call quality has not fully improved and that some of their calls either drop or have poor voice quality where the conversation is breaking up. Other users are noticing that file transfers are slower than expect. A group of users from a few sites have reported slowness in accessing internal and external applications.

Exhibit.

Users at a remote office are complaining about poor performance with certain applications. The network administrator has already configured Business Policies based on these requirements.

What is the sequence of parameters that the administrator can check to troubleshoot this problem? (Choose two.)

  1. A

    Change the bandwidth measurement under WAN Overlay Advanced Settings.

  2. B

    Check underlay network (bandwidth, latency, jitter, packet loss).

  3. C

    Under Monitor, check Routing tab.

  4. D

    Review Business Policies configuration and match them against the business requirements.

Show answer and explanation

Correct answers: B, D

Question 10 Single choice

Scenario 1:

A network administrator is tasked with enabling SO-WAN at three branch locations. A topology has been provided for reference. For each site, the administrator is having issues bringing edges online, as another administrator has gone ahead and created a configuration ahead of time. The organization has several branch sites. One is an Internet-only site and two are Hybrid locations with both internet and MPLS. The last location is MPLS only. There are hub data center locations in this environment as well. Please refer to the topology.

After the network administrator has determined the problem with the Edge not being able to access the Internet, the administrator receives another error stating that the SD-WAN Orchestrator is still not reachable.

The VCO's address is Amer-vcoOl.velocloud.net.

Refer to the Exhibit(s).

What might be disallowing the Edge to communicate with the Orchestrator?

  1. A

    The SD-WAN Orchestrator specified is incorrect, and a new activation email needs to be sent.

  2. B

    The local firewall that the Edge uses to reach externally is blocking UDP Port 53 in both directions.

  3. C

    The SD-WAN Orchestrator has a limited 60-second window for the Edge to come online.

  4. D

    The SD-WAN Orchestrator is not being resolved for DNS.

Show answer and explanation

Correct answer: C