CWNP CWDP-305: Certified Wireless Design Professional (CWDP)

Last checked November 10, 2026 against the official CWNP exam page.

1. Question 1Design the WLAN

   A hospital must support older medical carts that operate only on 2.4 GHz and newer dual-band tablets that prefer the 5 GHz band. Which design approach best meets both groups?

   1. AUse only 5 GHz with a single shared SSID so that legacy carts associate on the 5 GHz radios whenever they are able to do so
   2. BDisable the 2.4 GHz radios entirely and require every legacy medical cart to be replaced before the new network goes live in the hospital
   3. CConfigure every access point to use 80 MHz channels on 2.4 GHz so that legacy carts gain more throughput from the same radios
   4. DKeep the 2.4 GHz radios enabled for legacy carts and enable 5 GHz with band steering so dual-band tablets prefer the higher-capacity band
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   Correct answer: D

   Legacy 2.4 GHz-only carts need the 2.4 GHz radios, while band steering moves dual-band tablets onto 5 GHz for more capacity. Removing 2.4 GHz strands the carts, and wider 2.4 GHz channels do not solve the problem because 2.4 GHz has few non-overlapping channels.

2. Question 2Define Specifications for the WLAN

   A regional retailer is opening a new store. The owner says shoppers must be able to check stock on a mobile app, and point-of-sale terminals must stay online through the holiday peak. How should the designer classify these statements?

   1. AExisting documentation, because they describe how the store has operated in the past and what it currently uses
   2. BTechnical requirements, because they name specific applications and devices that the WLAN must support on the store floor during peak trading hours and holiday events
   3. CEnvironmental factors, because seasonal shopper traffic changes how the building is used throughout the year
   4. DBusiness requirements, which the designer later converts into measurable technical targets such as capacity and availability
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   Correct answer: D

   Shopper experience and uninterrupted point-of-sale service are business goals that the designer later turns into technical targets such as capacity and availability. The other options mislabel the goals as technical requirements or confuse them with existing documentation and environmental factors.

3. Question 3Validate and Optimize the WLAN

   After go-live, access points show as online in the management system, but employees using the corporate SSID cannot authenticate. Which step should the engineer take first?

   1. AVerify that each access point can reach the RADIUS server and that the shared secret and 802.1X settings match the server
   2. BLower the transmit power on every access point, because high power is the usual cause of authentication failures on enterprise networks
   3. CRename the corporate SSID to a shorter name, since long SSID names cause the RADIUS server to reject authentication requests
   4. DMove the access points to new mounting locations, because a failed authentication always points to a gap in radio coverage
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   Correct answer: A

   Access points that are online but cannot authenticate usually have a RADIUS reachability or configuration mismatch, so that is checked first. Transmit power, SSID length and mounting position do not explain failed 802.1X authentication.

4. Question 4Deploy the WLAN

   An access point must be placed 120 m from the nearest switch in a warehouse, and the design expects PoE power over the same cable. What is the correct action?

   1. AInstall the access point with the cable run as planned, because PoE raises the length limit to 150 m on any twisted-pair cable
   2. BRelocate the access point or add an intermediate switch so that each twisted-pair run stays within the 100 m Ethernet limit
   3. CReplace the run with a longer spool of Cat 6 cable, because the cable category determines the maximum Ethernet run length
   4. DPower the access point from a local wall adapter and keep the 120 m data cable, since Ethernet limits only the power supply
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   Correct answer: B

   The 100 m channel limit applies to twisted-pair Ethernet, so the access point must move or an intermediate switch must extend the run. PoE does not raise that limit, cable category does not change it, and a wall adapter still leaves the data run too long.

5. Question 5Design the WLAN

   After an office floor was rebuilt with 80 MHz channels on every 5 GHz access point, neighboring access points overlap heavily and throughput drops at peak hours. What is the most appropriate correction?

   1. ADisable the 5 GHz radios and rely on 2.4 GHz, which offers more channels than 5 GHz for the same number of access points
   2. BRaise the transmit power on every access point so that each one reaches clients beyond the neighboring cells on the floor
   3. CAdd more SSIDs so that clients spread across more logical networks, which reduces the radio load on each access point during the peak hours of the busy trading day
   4. DNarrow the channel width in the dense areas so that more non-overlapping channels are available to neighboring access points
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   Correct answer: D

   Wider channels leave fewer non-overlapping channels, so narrowing them in dense areas lets neighbors avoid contention. Higher power and more SSIDs make co-channel overlap worse, and 2.4 GHz has fewer non-overlapping channels than 5 GHz, not more.