Question

Difficulty: EasyIP Addressing and Network Configuration

A computer on a local network displays network status errors. A technician executes the `ipconfig` command on the machine and observes an IPv4 address of 169.254.88.201169.254.88.201 with a subnet mask of 255.255.0.0255.255.0.0 and a blank default gateway. Which of the following statements accurately describe this network status and its cause? (Select TWO.)

  1. The computer auto-configured its network interface using Automatic Private IP Addressing (APIPA).Answer
  2. The workstation was unable to contact or reach a active DHCP server on the local network.Answer
  3. C
    The primary DNS server failed to assign a valid dynamic IPv4 address lease to the client adapter.
  4. D
    The workstation successfully established a routable connection to the public internet using a link-local gateway.

Answer

The workstation self-assigned an Automatic Private IP Addressing (APIPA) address because it failed to reach a functional DHCP server.
An IPv4 address beginning with 169.254.x.x169.254.x.x indicates that the operating system engaged Automatic Private IP Addressing (APIPA) after failing to obtain a valid IP lease from a local DHCP server. APIPA enables local link communication among hosts on the same physical segment but cannot route traffic across gateways or to the internet.

Step-by-Step Solution

1
Analyze the reported IP address and configuration output.
The address 169.254.88.201169.254.88.201 falls within the 169.254.0.0/16169.254.0.0/16 address range reserved for link-local self-assignment.
Recognizing APIPA address ranges helps identify host autoconfiguration states.
2
Determine the cause of APIPA autoconfiguration.
The operating system enabled APIPA because no response was received from a DHCP server during network initialization.
Hosts default to APIPA only after DHCP lease requests time out without a response.

Key Concept

APIPA (Automatic Private IP Addressing) autoconfiguration upon DHCP reachability failure.
Rate this question