Troubleshooting Internet Connectivity Issues

Users are reporting Internet connectivity issues.

The network administrator wants to determine if the issues are internal to the company network or if there is an issue with the ISP.

Which of the following tools should be used to BEST determine where the outage is occurring?

A.

traceroute

B.

ping

C.

nslookup

D.

netstat.

A.

The tool that would be best used to determine where the Internet connectivity issues are occurring is traceroute.

Traceroute is a command-line tool that helps network administrators diagnose network routing issues by showing the path taken by packets between the source device and a remote destination. It sends packets with increasing TTL (Time To Live) values, and as each hop along the path is reached, it returns information about the IP address of that hop, the round-trip time of the packet, and other relevant information.

By using traceroute, the network administrator can determine if the issue is within the company network or if it is occurring at an external hop along the way to the destination. If the issue is within the company network, the traceroute results will show a problematic hop within the company network. If the issue is external, the traceroute results will show a problematic hop outside the company network, which could indicate an issue with the ISP.

The other tools listed in the question could also be useful in diagnosing network issues, but they are not as effective as traceroute for determining where an outage is occurring. Ping can help determine if a device is reachable and responding, but it doesn't provide information about the routing path. Nslookup is used for resolving domain names to IP addresses and doesn't diagnose connectivity issues. Netstat shows active network connections on a device, but it doesn't provide information about the routing path.