Which of the following descriptions of this content is correct?

Question

Options

• AThe MED value of the route to the 192.168.1.0/24 network segment is 100
• BThe route to the 192.168.1.0/24 network segment is learned through AS200
• CThe route to the 192.168.1.0/24 network segment is injected into the BGP routing table through the network command.
• DThe route to the 192.168.1.0/24 network segment is not optimal in the BGP routing table.

• A
  9% (2)
• B
  4% (1)
• C
  83% (19)
• D
  4% (1)

Explanation

Option C is correct because in a BGP routing table, routes injected using the network command display an origin code of "i" (IGP), which distinguishes them from redistributed routes (shown as "?") or routes learned from EGP (shown as "e"). The BGP table output for this route shows that "i" origin code, confirming it was explicitly advertised into BGP via the network command rather than redistribution.

Option A is wrong because the MED (Multi-Exit Discriminator) attribute visible in the output does not show a value of 100 - either the value differs or no MED is set. Option B is wrong because the AS_PATH attribute in the routing table does not list AS200 as part of the path to 192.168.1.0/24. Option D is wrong because the route is marked as optimal in the BGP table, indicated by the ">" symbol at the start of the entry, which BGP uses to flag the best path selected for forwarding.

Memory tip: Focus on the BGP origin code column. "i" always means the network command (think "i" for "I explicitly told BGP about this"), "?" means redistribution (incomplete origin, hence the question mark), and "e" means EGP. This distinction frequently appears in exam questions about how routes enter the BGP table.

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