100-150 Question 182
Single answerA network technician is troubleshooting connectivity issues for a workstation. The workstation can communicate with other devices on the same subnet but cannot access resources on a remote network. The workstation's IP address and subnet mask are configured correctly. What is the MOST likely cause of the issue?
- A
The workstation's default gateway is not configured.
- B
The workstation is connected to a Layer 2 switch instead of a Layer 3 switch.
- C
The subnet mask is incorrectly configured, causing routing issues.
- D
The remote network's router is blocking traffic from the workstation.
Show answer and explanation
Correct answer: A
Explanation
The default gateway is essential for routing traffic to remote networks. Without a properly configured default gateway, a device can communicate only within its local subnet. Since the workstation can communicate locally but not with remote networks, the absence of a default gateway is the most likely cause of the issue.
- A. Correct.
If the default gateway is not configured, the workstation will not know where to send traffic destined for remote networks, making it unable to reach those networks.
- B. Incorrect.
A Layer 2 switch is capable of handling local communication within the same subnet. It does not affect the workstation's ability to communicate with remote networks as long as the default gateway is correctly configured.
- C. Incorrect.
The subnet mask is already stated to be correctly configured in the question, so this option is incorrect.
- D. Incorrect.
While a remote router could block traffic, this issue is not related to the workstation's inability to send traffic to remote networks. The problem lies in the local configuration.