Which of the following caused the issue?

A server technician installs a new NIC on a server and configures the NIC for IP connectivity. The technician then tests the connection using the ping command.

Given the following partial output of the ping and ipconfig commands:

Which of the following caused the issue?
A . Duplicate IP address
B . Incorrect default gateway
C . DHCP misconfiguration
D . Incorrect routing table

View Answer

Answer: A

Explanation:

The ping command output shows that the NIC has an IP address of 192.168.1.100 and a default gateway of 192.168.1.1. However, when the technician tries to ping the default gateway, the reply comes from another IP address: 192.168.1.101. This means that there is another device on the network that has the same IP address as the default gateway, and it is responding to the ping request instead of the intended destination.

A duplicate IP address can cause network connectivity problems, such as packet loss, routing errors, or unreachable hosts. To resolve this issue, the technician should either change the IP address of the default gateway or the device that is conflicting with it, or use DHCP to assign IP addresses automatically and avoid conflicts.

The other options are not correct because they do not explain the ping output. An incorrect default gateway would cause no reply or a destination unreachable message, not a reply from a different IP address. A DHCP misconfiguration would cause an invalid or no IP address on the NIC, not a duplicate IP address on the network. An incorrect routing table would cause routing errors or unreachable destinations, not a reply from a different IP address.

Reference: https://askleo.com/what_is_ping_and_what_does_its_output_tell_me/https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/ping