Which statement best describes the network command's purpose in BGP?

• A. It configures authentication for BGP
• B. It sets the update timer
• C. It tells BGP what to advertise
• D. It tells BGP where to advertise

Answer: (C)

The network command defines which local networks BGP will advertise to its peers. It works by checking the local routing table for a route that matches the network you specify; if found, BGP originates that network into BGP and includes it in updates sent to neighbors. This is how you decide which of your locally known networks are shared with others.

The other aspects—authentication sets up BGP session security, the update timer controls how often updates are sent, and the act of choosing “where” to advertise is determined by neighbor configuration and routing policies rather than the network statement itself.