200-301 Question 17
Single answerA company is deploying several new access points (APs) across their office to provide seamless wireless coverage. During initial configuration, the network engineer notices that some of the APs are broadcasting the same SSID but are not operating on non-overlapping channels. What is the most likely impact of this configuration, and what should the engineer do to resolve it?
- A
The wireless network will experience co-channel interference; the engineer should configure the APs to use non-overlapping channels.
- B
The wireless clients will connect to the strongest signal without any issues; no changes are needed.
- C
The APs will interfere with each other, reducing network performance; the engineer should disable SSID broadcasting on some APs.
- D
The APs will fail to provide network connectivity; the engineer should configure each AP with a unique SSID.
Show answer and explanation
Correct answer: A
Explanation
In a wireless network, access points broadcasting the same SSID should operate on non-overlapping channels to avoid co-channel interference, which can degrade performance. In the 2.4 GHz spectrum, common non-overlapping channels are 1, 6, and 11. Proper channel planning ensures optimal performance and seamless connectivity for wireless clients.
- A. Correct.
Correct. Co-channel interference occurs when multiple APs on the same channel overlap. Configuring APs to use non-overlapping channels (e.g., 1, 6, 11 in the 2.4 GHz band) reduces interference and improves performance.
- B. Incorrect.
Incorrect. While clients may connect to the strongest signal, operating APs on overlapping channels can cause interference, leading to degraded performance.
- C. Incorrect.
Incorrect. SSID broadcasting is not the issue here. Disabling SSID broadcasting on some APs would not resolve channel interference.
- D. Incorrect.
Incorrect. Unique SSIDs are not required for a seamless wireless network. Using the same SSID allows for better roaming across APs.