1D0-61C · Question #45
Jenny recently switched from broadband cable Internet to ADSL service with her local phone company. To economize, she chose the self-installation option. It appears that her ADSL modem is not…
The correct answer is C. Default gateway. When switching to a new ISP like ADSL, the default gateway is the IP address that tells your device where to send traffic destined for the internet - if it's misconfigured or missing during self-installation, no packets can leave the local network, making it the most likely…
Question
Jenny recently switched from broadband cable Internet to ADSL service with her local phone company. To economize, she chose the self-installation option. It appears that her ADSL modem is not allowing her to connect to the Internet. Which setting should she check first?
Options
- ALoopback address
- BSoftware version
- CDefault gateway
- DDevice name
How the community answered
(31 responses)- A3% (1)
- B13% (4)
- C77% (24)
- D6% (2)
Explanation
When switching to a new ISP like ADSL, the default gateway is the IP address that tells your device where to send traffic destined for the internet - if it's misconfigured or missing during self-installation, no packets can leave the local network, making it the most likely culprit for a failed connection. The loopback address (A) is a fixed diagnostic address (127.0.0.1) built into the OS and has nothing to do with ISP configuration. The software version (B) might matter for security patches but wouldn't prevent initial connectivity on a freshly installed modem. The device name (D) is just a human-readable label and has no effect on routing or connectivity whatsoever.
Memory tip: Think of the default gateway as the "front gate" of your network - if you don't know the gate's address, you can't leave the neighborhood (your LAN) to reach the internet.
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