What happens when a router interface ingress queue is full and new network traffic is received?

What happens when a router interface ingress queue is full and new network traffic is received?

• The router sends the received traffic immediately.
• The router drops the arriving packets.
• The router drops all traffic in the queue.
• The router queues the received traffic and sends previously received traffic.

Explanation: When the volume of traffic is greater than what can be transported across the network, devices queue, or hold, the packets in memory until resources become available to transmit them. If the number of packets to be queued continues to increase, the memory in the device fills up, and packets are dropped.

Exam with this question: 9.6.2 Module Quiz - QoS Concepts
Exam with this question: CCNA 4 v6 Chapter 6: Check Your Understanding