CNX-001 Question #73: Real Exam Question with Answer & Explanation

The correct answer is C: Duplex mismatch. This is the most common cause of excessive latency, packet loss, and retransmissions in high- speed links. If one end of a connection is set to full duplex and the other to half, collisions and late collisions occur, leading to poor throughput and constant retransmissions.

Cloud Network Operations and Troubleshooting

Question

What is the MOST likely cause of increased latency and packet retransmissions in a high- bandwidth, low-latency environment?

Options

AMTU fragmentation
BAsymmetric routing
CDuplex mismatch
DVLAN misconfiguration

Explanation

This is the most common cause of excessive latency, packet loss, and retransmissions in high- speed links. If one end of a connection is set to full duplex and the other to half, collisions and late collisions occur, leading to poor throughput and constant retransmissions.

Topics

#Network Troubleshooting#Duplex Mismatch#Packet Retransmissions#Latency

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