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220-802 · Question #56

220-802 Question #56: Real Exam Question with Answer & Explanation

The correct answer is D: The DHCP server is misconfigured.. The affected workstations received valid 192.168.1.x addresses (not APIPA 169.254.x.x), which proves the DHCP server is reachable and responding - ruling out option B. Users who never rebooted still hold their old, correct DHCP leases and work fine; users who rebooted obtained ne

Question

A critical server was replaced by the IT staff the previous night. The following morning, some users are reporting that they are unable to browse to the Internet upon booting their workstations. Users who did not shut down their workstations the previous day are able to connect to the Internet. A technician looks at the following report from a workstation with no Internet connectivity: IP Address: 192.168.1.101 Netmask: 255.255.255.0 DHCP Server:192.168.1.1 DNS Server:192.168.1.2 Default Gateway:192.168.1.1 Given the above report, which of the following is the cause of why some workstations are unable to browse the Internet?

Options

  • AThe workstation has an APIPA address.
  • BThe DHCP server is unavailable.
  • CThe default gateway router is misconfigured.
  • DThe DHCP server is misconfigured.

Explanation

The affected workstations received valid 192.168.1.x addresses (not APIPA 169.254.x.x), which proves the DHCP server is reachable and responding - ruling out option B. Users who never rebooted still hold their old, correct DHCP leases and work fine; users who rebooted obtained new leases from the replaced server and cannot browse. This points directly to the replaced server issuing incorrect DHCP configuration (e.g., wrong DNS server IP), not to an unavailable DHCP server. Option C (misconfigured gateway) is unsupported by the displayed data, and option A is incorrect because APIPA addresses are 169.254.x.x, not 192.168.x.x.

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