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N10-009
Network Troubleshooting
medium
Question 2 of 23

During troubleshooting, a technician discovers that two hosts on the same VLAN cannot communicate. Checking the switch, the technician finds that one port is in VLAN 10 and the other is in VLAN 20. What is the issue?

AIncorrect subnet mask on one host
BSTP is blocking one port
CVLAN mismatch — ports are in different VLANs
DThe switch is operating at Layer 3

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