In the figure, a web client sends an HTTP request to a web server, and...

Routers perform packet forwarding using network-layer information, particularly the destination IP address.

Option A is false because a conventional router does not need to inspect application-layer HTTP content to determine its outgoing interface. That decision is normally based on information in the routing table.

Option B is true. After receiving an Ethernet frame, the router removes its incoming data-link encapsulation and examines the destination IP address in the packet header.

Option C is false because destination TCP or UDP port numbers are not used for ordinary IP routing-table lookups.

Option D is false because normal forwarding does not replace the destination IP address. The router changes the Layer 2 encapsulation for the next hop while retaining the original IP destination unless another feature, such as NAT, performs address translation.

Therefore, A, C, and D are false statements.

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