A network technician is troubleshooting a workstation in an enterprise office that cannot connect to local network resources or the internet. The workstation's network interface card displays a solid green link light and an amber activity light. Running the `ipconfig` command on the workstation displays an IPv4 address of 169.254.44.102 and a subnet mask of 255.255.0.0, but no default gateway. Which of the following is the MOST likely cause of this issue?
- The workstation is unable to communicate with a DHCP server to obtain an IP address assignment.Cevap
- BThe Ethernet cable connecting the workstation to the wall jack is damaged or disconnected.
- CThe local DNS server is offline and unable to resolve hostnames to IP addresses.
- DThe access switch port is configured as an unmanaged Layer 2 switch that cannot route traffic.
Cevap
The workstation is unable to communicate with a DHCP server to obtain an IP address assignment.
When a device configured for dynamic IP addressing cannot reach a DHCP server, Windows automatically assigns an Automatic Private IP Addressing (APIPA) address in the 169.254.0.0/16 range. Since the physical link lights confirm physical connectivity, the primary root cause is DHCP unreachability or server failure.
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APIPA Address Interpretation and DHCP Failure Troubleshooting
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