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N10-009
Network Troubleshooting
hard
Question 5 of 23

Users on a remote branch site report intermittent slowness accessing the headquarters server. A network engineer captures traffic and observes high retransmission rates and increasing RTT. ping to the HQ server shows 35% packet loss. The WAN link shows 85% utilization. What is the MOST likely cause and recommended action?

AReplace the WAN router — hardware failure is causing packet loss
BUpgrade the WAN link — congestion is causing packet loss and high latency
CConfigure QoS to prioritize all traffic equally
DAdd a second DNS server at the branch

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