A user cannot access any local or remote resources. A technician runs a command to find the configuration information and gets the following results:
IPv4 Address: 192.168.1.10
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.2.1
The technician checks with the NOC, and it verifies that the upstream router is configured correctly. The next hop given to the technician matches the value in the output. Which of the following should the technician change in order for the user's connection to work fully?
Correct Answer: E
The best answer is E. Subnet mask. With the current subnet mask of 255.255.255.0, the user's IP address
192.168.1.10 is on the 192.168.1.0/24 network, while the default gateway 192.168.2.1 is on the 192.168.2.0
/24 network. A host normally needs its default gateway to be reachable on the same local network. The Mike Meyers material explains that the subnet mask identifies the network ID and host ID, and every computer on a single LAN must have the same network ID. With 255.255.255.0, the first three octets define the network, so
192.168.1.x and 192.168.2.x are different networks. The NOC verified that the gateway value itself is correct, so changing the gateway would conflict with the verified next hop. DNS settings would affect name resolution, not access to all local and remote resources. Lease time and firewall rules are not indicated by the IP information. The subnet mask must be changed so the client and gateway are in the same local IP network.