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Which of the following statements is true about the operations that a router executes on a packet? (Choose two.)
Modify the source MAC address in the Layer 2 Headers of outgoing packets.
Modify the destination IP address in the Layer 3 headers of outgoing packets.
Check the destination IP address in the Layer 3 Headers of incoming packets and decide the complete path to the ultimate destination.
Check the destination IP address in the Layer 3 Headers of incoming packets and decide the next hop
Check the MAC address information in the Layer 2 Headers of incoming packets and decide the next best hop.
In order to forward a packet to the next best hop, a router must check the destination IP address in the Layer 3 header of the incoming packet. A router will never modify the information in the L3 header. To forward the L3 header, a router will modify the L2 header with new MAC address information and decide the next best local hop out of its interfaces. A local router cannot compute the overall route to the ultimate destination; this is done in a hop-by-hop basis.
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