220-802 · Question #988
A user is connected to their home wireless network and can see shared folders on the other computers on the network, but cannot connect to the Internet. Which of the following tools would a…
The correct answer is C. TRACERT. Since LAN connectivity works but Internet access fails, TRACERT is the best tool because it traces the packet route hop by hop, pinpointing exactly where connectivity breaks down between the local network and the Internet.
Question
A user is connected to their home wireless network and can see shared folders on the other computers on the network, but cannot connect to the Internet. Which of the following tools would a technician use to BEST troubleshoot this issue?
Options
- ANETSTAT
- BARP
- CTRACERT
- DNBTSTAT
How the community answered
(49 responses)- A8% (4)
- B6% (3)
- C84% (41)
- D2% (1)
Why each option
Since LAN connectivity works but Internet access fails, TRACERT is the best tool because it traces the packet route hop by hop, pinpointing exactly where connectivity breaks down between the local network and the Internet.
NETSTAT displays active TCP/UDP connections and listening ports on the local machine and does not help trace routing paths to the Internet.
ARP resolves IP addresses to MAC addresses on the local subnet and is useful for local connectivity issues, not Internet routing problems.
TRACERT (traceroute) sends packets with incrementing TTL values and records each router hop's response time and address. Because the user can reach local shares, the default gateway is reachable; TRACERT will reveal whether packets stop at the default gateway, the ISP's router, or further upstream, precisely isolating the failing segment. This makes it superior to other tools for diagnosing a working LAN but broken WAN scenario.
NBTSTAT displays NetBIOS over TCP/IP statistics and name tables, which are relevant to local Windows file sharing, not Internet routing.
Concept tested: Using TRACERT to isolate LAN vs WAN connectivity failure
Source: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/tracert
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