Question: Consider a packet switching network core. Under what circumstances could packets get dropped by a router? Packets are never dropped, since the purpose of the

Consider a packet switching network core. Under what circumstances could packets get dropped by a router?

  1. Packets are never dropped, since the purpose of the network core is to carry packets from one access network to another.
  2. When the arrival rate of packets on the router is higher than the transmission rate of the link.
  3. When the queue is full and there are only outgoing packets.
  4. When the queue is full and there are more incoming packets.

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