A company recently opened a new branch site. The site needs to access the internet through a link to HQ. The router at the branch Branch1 the router at HQ is Called core1. The computers at the branch

Branch1 needs a default route (0.0.0.0/0) toward Core1 to forward all internet-bound packets upstream through HQ. Core1 must have a specific static route for 192.168.1.0/24 pointing back to Branch1 so that return traffic can reach the branch network. Both routes together establish full bidirectional connectivity between the branch and the internet.

Placing the default route on Core1 pointing toward Branch1 is incorrect because Core1 already has internet access and adding this route would redirect Core1's own outbound traffic toward the branch instead of the internet.

Configuring only a route on Core1 for the branch subnet leaves Branch1 without a default route, so Branch1 still cannot forward any outbound internet traffic upstream toward Core1.

A default route on Branch1 alone is insufficient because Core1 has no route for 192.168.1.0/24 and cannot deliver return packets back to the branch subnet.