Free Cisco 300-110 Practice Questions 2026 | Designing Cisco Wireless Networks (300-110 WLSD) v1.2

A network engineer is designing a new wireless network. The network must include these requirements: • optimized performance • avoid interference • availability in high-density areas • roaming Which two approaches must be taken? (Choose two.)

A. 5 GHz frequency band with 20 MHz channels

B. 2.4 GHz frequency band with 20 MHz channels

C. 5 GHz frequency band with 80 MHz channels

D. 2.4 GHz frequency band with 40 MHz channels

E. 5 GHz frequency band with 40 MHz channels

An engineer must configure the virtual IP address on multiple controllers in a mobility group. Which rule must the engineer follow to ensure proper roaming?

A. Ensure that the DNS entry is tied to the virtual IP address of the WLC.

B. Use a unique IP address for each WLC.

C. Ensure that the DNS Host Name field is defined.

D. Use the same IP address for each WLC.

A wireless engineer is using Ekahau Site Survey to validate that an existing wireless network is operating as expected. A Cisco CleanAir AP is used for Layer 1 survey by using Metageek Chanalyzer only on the current operating channel. Which operating mode is configured for the Cisco CleanAir AP?

A. Local

B. Sniffer

C. Monitor

D. SE-connect

A school deploys a Cisco wireless infrastructure in its classrooms to support a high density of mobile devices. The network administrator wants to bond channels in groups of two and only allow APs to send 802.11 management frames at 24 Mbps. What should be included in the design to accomplish this objective?

A. Set the channel width for 802.11b to 40 MHz and set data rates to 24 Mbps and Mandatory.

B. Set the channel width for 802.11a to 40 MHz and set data rates to 24 Mbps and Supported.

C. Set the channel width for 802.11a to 40 MHz and set data rates to 24 Mbps and Mandatory.

D. Set the channel width for 802.11b to 40 MHz and set data rates to 24 Mbps and Supported.

A network design supports data and voice in 2.4 GHz and 5.0 GHz. The design must support asset tracking without affecting the existing design. Which action must be taken?

A. Add more monitor mode APs to the perimeter of the area.

B. Add more local mode APs to the perimeter of the area.

C. Use more APs grouped closer together.

D. Increase the transmission power of the existing APs.

What causes the most signal attenuation based on the wireless design tools?

A. cinder block wall

B. metal door

C. glass wall

D. office window

A consulting engineer is preparing to survey a brownfield deployment for a 6000-sqft building with four floors that have APs. The entire building is being remodeled and the furniture, office walls, and decoration are being updated. The engineer must perform a survey analysis on the potential RF impact of newer furniture materials. How must the survey be conducted?

A. Perform a sweep analysis first to predict the signal strength across each point in a floor.

B. Evaluate the neighbor APs strength and density based on the radio statistics information of each AP.

C. Measure upstream and downstream data rates based on the remodeling of the building.

D. Use a survey tool with the existing AP positions using building floor maps and material configuration.

During a client roaming event, which device is responsible for communicating the new Layer 2 EID mapping of a wireless supplicant to the fabric domain?

A. WLC

B. BN

C. CP2

D. CP1

An engineer must perform a predictive wireless survey to indicate the number of access points required. The engineer has created a new project and imported the floor plan. Which step must be taken next for accurate AP placement?

A. Analyze the network.

B. Identify the coverage area.

C. Place the access points.

D. Set the scale.

During a site survey for a new wireless deployment in a multifloor office building, an engineer must identify sources of interference and ensure optimal AP placement for 5 GHz coverage. While walking the site with a spectrum analyzer, the engineer notices periodic spikes in the noise floor on several channels and inconsistent signal strengths reported by the survey tool, despite visually unobstructed paths. Which action must the engineer take next to accurately assess and mitigate the Layer 1 interference?

A. Increase the transmit power of all APs to compensate for the signal fluctuations and rerun the survey to verify the visual line-of-sight and signal strength measurements.

B. Use the wireless controller monitoring tools in combination with the site survey tool heatmap output to determine AP locations and capture the Layer 1 spectrum analysis for ongoing analysis.

C. Document the affected channels and locations, then attempt to adjust the channel plan to avoid the frequencies that experience the most interference during initial deployment.

D. Use the spectrum analyzer to document the time, frequency, and location of the noise spikes, then correlate them with possible non-Wi-Fi interferers and adjust AP placement accordingly.