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What are two possible causes for the communications issue?

Two virtual machines are unable to communicate with one another. The virtual machines are in the same
distributed portgroup, but reside on different ESXi hosts.
What are two possible causes for the communications issue? (Choose two.)

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A.
Basic multicast filtering mode has been disabled on the ESXi hosts.

B.
No physical NICs are assigned as active or standby uplinks in a NIC team.

C.
The standby links are configured on different VLANs, preventing heartbeats from reaching each VM.

D.
The physical NICs assigned as active or standby uplinks reside on different VLANs on the physical switch.

Explanation:
https://pubs.vmware.com/vsphere-65/index.jsp?topic=%
2Fcom.vmware.vsphere.troubleshooting.doc%2FGUID-5324A0E4-AA7B-40CC-A975-D45328B5C434.html

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9 Comments on “What are two possible causes for the communications issue?

  1. Aria says:

    B and D are correct.
    https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.troubleshooting.doc/GUID-5324A0E4-AA7B-40CC-A975-D45328B5C434.html

    • There are no physical NICs on some of the hosts assigned to active or standby uplinks in the teaming and failover order of the distributed port group.
    The physical NICs on the hosts that are assigned to the active or standby uplinks reside in different VLANs on the physical switch. The physical NICs in different VLANs cannot see each other and thus cannot communicate with each other.




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  2. mahabuba says:

    QUESTION 285
    Which two methods does VMware NSX offer to integrate with third-party partners? (Choose two)

    A. Integration Manager
    B. Service Chaining
    C. VMware NSX APIs
    D. Universal Synchronization Service

    Answer: AC
    Explanation:
    https://docs.vmware.com/en/VMware-NSX-forvSphere/6.3/com.vmware.nsx.admin.doc/GUID-EA477D96-E2D3-488B-90AA-2F19B4AE327D.html#GUID-EA477D96-E2D3-488B-90AA-2F19B4AE327D

    QUESTION 286
    Which load balancing algorithm is only available on a vSphere Distributed Switch?

    A. Route Based on Source MAC Hash
    B. Route Based on Originating Virtual Port
    C. Route Based on IP Hash
    D. Route Based on Physical NIC Load

    Answer: D
    Explanation:
    https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-959E1CFE-2AE4-4A67-B4D4-2D2E13765715.html

    QUESTION 287
    Which action is not an option for adding Virtual Machines to a Security Group?

    A. Adding Virtual Machines to a Security Group and nesting it within another Security Group.
    B. Defining Dynamic Membership in the Security Group.
    C. Adding Virtual Machines to a Security Policy and associating it with a Security Group.
    D. Selecting objects to include within a Security Group.

    Answer: C

    QUESTION 288
    From the NSX Edge CLI, which command would show VIP statistics?

    A. show service loadbalancer pool
    B. show service loadbalancer virtual
    C. show service loadbalancer monitor
    D. show service loadbalancer

    Answer: B
    Explanation:
    https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2122708

    QUESTION 289
    An NSX administrator notices that when configuring Flow Monitoring, the graphs do not include the IPFix flows. Where are these flows displayed?

    A. In the IPFix collector’s interface
    B. In the Flow Monitor UI
    C. In the vRealize Operations UI
    D. In the IPFix tab of the NSX Manager UI

    Answer: A
    Explanation:
    https://docs.vmware.com/en/VMware-NSX-forvSphere/6.3/com.vmware.nsx.admin.doc/GUID-4C085DAE-A671-44A3-B9D1-62BC7966B388.html

    QUESTION 290
    An administrator is deploying NSX in a Cross-vCenter configuration across three data centers located 100 miles apart Datacenter-1 and Datacenter-3 already have NSX deployed locally and Datacenter-2 does not have NSX deployed yet.
    What is the correct order of steps to configure all three data centers for this solution?

    A. 1 Remove the NSX manager from Datacenter-1 and Datacenter-3 2 Reinstall all three NSX managers at the same time
    3 Deploy a universal transport zone
    4 Deploy a universal distributed logical router
    B. 1 Deploy an NSX manager at Dataeenter-2
    2 Change the roles of the NSX managers in Datacentar-1 and Datacenter-3 to Transit Mode 3 Deploy a universal transport zone
    4 Configure the Primary and Secondary roles on all three NSX managers
    C. 1 Deploy an NSX manager in Datacenter 2
    2 Update the NSX manager role in Datacenter-1 to Primary 3 Update the roles in Dafacenter-2 and Datacentar-3 to Secondary 4 Deploy a universal transport zone
    D. 1 Deploy the NSX manager at Datacenter-2
    2 Update the NSX manager role in Datacenter-1 to Primary 3 Deploy a universal transport zone
    4 Deploy a universal distributed logical router

    Answer: D

    QUESTION 291
    A security administrator needs to create a Security Group based on an Active Directory group. However, AD Groups are not available as an option. What must the administrator configure before AD Groups are available?

    A. Guest Introspection virtual machines must be joined to the domain
    B. Inventory Service must be registered with a domain account
    C. NSX Manager must be registered with Active Directory
    D. NSX Controller must be registered with Active Directory

    Answer: C

    QUESTION 292
    What is one of the benefits of a spine-leaf network topology?

    A. A loop prevention protocol is not required
    B. Automatic propagation of security policies to all nodes
    C. Allows for VXl ANs to be defined in h traditional network topology
    D. Network virtualization relies on spine leaf topologies to create logical switches

    Answer: D

    QUESTION 293
    What is the most restrictive NSX role that can be used to create and publish security policies and install virtual appliances?

    A. Security Administrator
    B. NSX Administrator
    C. Auditor
    D. Enterprise Administrator

    Answer: D

    QUESTION 294
    In a Cross-vCenter NSX deployment, what are two requirements that must be met in order for an administrator to deploy both universal logical switches and local logical switches within the same vCenter instance? (Choose two.)

    A. A universal distributed logical router must be created
    B. A logical distributed router must be created
    C. A universal transport zone must be created.
    D. A local transport zone must be created

    Answer: CD
    Explanation: https://docs.vmware.com/en/VMware-NSX-forvSphere/6.3/com.vmware.nsx.cross-vcenter-install.doc/GUID-7F76BB1E-7E36-4E9DB8C2-798100E62192.html




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