DevNet Associate (DEVASC) v1.0Network FundamentalsEasy
A network technician is troubleshooting connectivity issues for a new workstation. The workstation can ping other devices on its local subnet but cannot reach any resources outside of it. Which of the following IP configuration parameters is most likely misconfigured?
- AIP Address
- BDefault Gateway
- CSubnet Mask
- DDNS Server
Show answer & explanationAnswer & explanation
Correct answer: B. Default Gateway
The default gateway is the IP address of the router interface that allows a device to send traffic to destinations outside its local subnet. If a device can reach local resources but not external ones, the default gateway is the most probable misconfiguration.
Why the other options are wrong
- A. An incorrect IP address would likely prevent communication even within the local subnet.
- C. An incorrect subnet mask might cause issues with local subnet communication or incorrectly identify local vs. remote hosts.
- D. An incorrect DNS server would prevent name resolution but not necessarily block IP-based connectivity to external resources.
Default Gateway
The IP address of the router interface on a local network that acts as a forwarding host to other networks.
- Enables communication with devices outside the local subnet.
- Must be on the same subnet as the host.
- Often the router's IP address for that network segment.
Memory trick: Gateway Guards Global Access.