Regarding Route Policy, is the following description correct?

• A.Advanced ACLs can be applied in route-policy to filter routes
• B.Route one policy filters only the default route
• C.The table entries pernit::0 Less an equal 128 indicate that all IPV6 routes are allowed through
• D.If more than one node is defined in Route one policy, there should be at least one node in each node that matches permit

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Regarding the FTP protocol, which of the descriptions below is correct?

• A.FTP always uses a TCP session to transmit control information and data information
• B.FTP always uses TCP port 20 to establish a data session, and ICP port 21 to establish control will always use
• C.In FTP Active mode, the server tells the client which port it expects to send data on by commanding "PORT"
• D.In FTP Passive mode, the client completes the initialization of the TCP session for control and data
• E.FTP TCP port 21 to establish a data session, TCP port 20 to establish a control session

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The following description of BGP load sharing is wrong with? (Multiple choice question)

• A.IBGP routes and EBGP routes that reach the same destination in the public network can form a load sharing
• B.The AS_Path properties of the equivalent routes that form load sharing must be different.
• C.If BGP load sharing is implemented, the local device needs to configure the peer next-hop-local command to change the next hop address to its own address when issuing a route to an IBGP peer group.
• D.The destination CIDR blocks are the same, and load sharing can be formed between BGP routes with different sources.

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CORRECT TEXT
In EPIM-SM, the following description of the PIM Join message is correct?

• A.PIM Join messages are sent every 3 minutes, and status
• B.PIM Join messages for the multicast tree are only sent when the multicast tree is first established
• C.The PIM Join message is sent every 60 seconds to refresh the status of the upstream router mroute for the multicast tree
• D.The upstream router sends a PIM Join acknowledgment in response to each PIM Join message received from the downstream router

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The following is an error in the OSPF routing calculation (single choice).

• A.Compared to the PRC algorithm, the ISPF algorithm only calculates the changed leaf nodes when the route changes PRC algorithm to recalculate routes
• B.OSPF router uses the FULL SPF algorithm to calculate all nodes in the network when initially calculating routes
• C.When the first and second class LSAs on the network change, OSPF uses the ISPF algorithm to recalculate the routes. The

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