If an EBGP neighbor is in the Active state, which statement about the local router is true?
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Correct answer: The local router is attempting to open a TCP session with the neighboring router..
Why this is the answer
When an EBGP neighbor is in the Active state, it means the local router is actively trying to establish a TCP connection to the neighbor on port 179. This is the initial phase of BGP peering establishment. If the connection fails, the router will cycle through Active and Connect states, repeatedly attempting to initiate the TCP handshake. The other options are incorrect because: "The local router is receiving prefixes from the neighboring router and adding them in RIB-IN" describes a state where the BGP session is already established (e.g., Established state), not Active. "The local router has active prefixes in the forwarding table from the neighboring router" also implies an Established BGP session and successful route installation, which occurs much later than the Active state. "The local router has BGP passive mode configured for the neighboring router" would mean the local router is listening for incoming TCP connections, not actively attempting to open one, which is characteristic of the Active state.
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