As shown in the figure, in the HUB & Spoke networking mode of MPLS BGPVPN, in order to achieve the division can only communicate with the headquarters, the division can not communicate with each other When setting up RT, which of the following scenarios is this?( Radio).

• A.Headquarters: Impot Target:2:2; Expor Target:3:3
• B.Headquarters: importTarget: 12:3EpodTarget: 3:12
• C.import Target:12:3EpodTarget:12:3
• D.Headquarters: importTarget:1:1EpodTarget:3:3

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At the NETCONF content layer, the <config> operation may contain an operation attribute, which is used to specify an operation type for configuration data. Which of the following operation attributes are supported?

• A.create: The configuration data identified by the element that contains this attribute is added to the configuration datastore only if the configuration data does not already exist in the configuration datastore. If it already exists in the configuration datastore, <rpc-error> with the <error-tag> value being data-exists is returned.
• B.delete: The configuration data identified by the element that contains this attribute is deleted from the configuration datastore. If the configuration data does not exist in the configuration datastore, a deletion success message is returned.
• C.merge: The configuration data identified by the element that contains this attribute is modified if the configuration data already exists in the configuration datastore. If not, the configuration data is created in the datastore.
• D.remove: The configuration data identified by the element that contains this attribute is deleted from the configuration datastore. If the configuration data does not exist in the configuration datastore, a deletion success message is returned.

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Although the STP protocol can solve the loop problem, it affects the quality of user communication due to the slow convergence of the network topology. RSTP has made many improvements to STP, which of the following is not an improvement of RSTP to STP?

• A.If a port does not receive a configuration BPDU sent by the upstream device for 4 consecutive Hello Time, the device considers the negotiation with this neighbor to fail
• B.In addition to the 3 port states, RSTP vice adds 2 new port roles
• C.Non-root switches running RSTP send configuration BPDUs at intervals specified by Hello Timer, a behavior that is entirely autonomous for each device
• D.RSTP port state specification is divided according to whether the port forwards user traffic and learns the MAC address, reducing the original 5 port states to 3

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You want only his telnet stream to be able to access the server (address 1011.100). Then, you add the following ACL to the routing ring: nule5pemit cp source ny destination 1011.100000destination-porteq 23 rule
1l0 deny ip source any destination any Then you apply that ACL to the ingress direction of the router's seial interface. What type of message is allowed to pass through the router?( Multiple choice questions).

• A.Non-first-sharded messages that use port 23 to access the server's message
• B.Non-first-of-sharded messages to access other hosts
• C.Packet answer for the first sharded or non-sharded, using port 23 to access the server
• D.Non-first-of-its-kind packets that use port 21 to access the server
• E.A non-sharded, port 21-accessing packet

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Which of the following statements about static VXLAN tunnel configuration are correct?

• A.On an NVE interface, the destination address of a VXLAN tunnel is specified based on the address in the ingress replication list. You can create one NVE interface for multiple VXLAN tunnels.
• B.An NVE interface can be associated with multiple VNIs. Therefore, you can create one NVE interface when there are multiple BDs.
• C.One NVE interface must be created for each VXLAN tunnel, and the source and destination IP addresses must be specified for the NVE interface. Therefore, the number of NVE interfaces is the same as the number of VXLAN tunnels on the VTEP.
• D.One NVE interface must be created for each BD. If there are multiple BDs, multiple NVE interfaces must be created.

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