CWNP CWNA-110: Certified Wireless Network Administrator (CWNA)

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

1. Question 1WLAN Regulations and Standards

   Which statement correctly describes the role of one of the organizations that shape WLAN technology?

   1. AIETF publishes the IEEE 802.11 MAC and PHY amendments that vendors must follow
   2. BIEEE publishes RFC documents that define RADIUS and CAPWAP
   3. CWi-Fi Alliance runs Wi-Fi CERTIFIED interoperability testing programs
   4. DThe FCC writes the 802.11 frame formats used by vendors
   Show answer and explanationHide answer

   Correct answer: C

   The IEEE publishes the 802.11 amendments, the IETF publishes RFCs such as those for RADIUS and CAPWAP, and the Wi-Fi Alliance certifies interoperability. The FCC sets spectrum rules in the United States rather than defining frame formats, so the other options misassign these roles.

2. Question 2WLAN Protocols and Devices

   A laptop powers on and sends probe request frames on several channels to look for networks it knows. What is the laptop doing?

   1. ARequesting an IP address from DHCP
   2. BSending QoS data to the access point
   3. CCompleting open system authentication
   4. DActively scanning for available networks
   Show answer and explanationHide answer

   Correct answer: D

   Probe requests are management frames a station sends during active scanning to discover networks. DHCP runs after association, authentication comes after a network is chosen, and QoS data frames carry user payloads, so those three options describe other stages.

3. Question 3RF Validation and Remediation

   A site has intermittent slowdowns, and packet captures show long gaps with no Wi-Fi frames at all. The team wants to see RF energy from any source, including non-Wi-Fi devices. Which tool should they use?

   1. AA protocol analyzer that decodes 802.11 management, control, and data frames in monitor mode
   2. BA ping test from a client to the default gateway
   3. CThe access point's DHCP lease table
   4. DA spectrum analyzer that displays RF energy by frequency and time
   Show answer and explanationHide answer

   Correct answer: D

   A spectrum analyzer shows energy across frequency and time regardless of protocol, which reveals non-Wi-Fi interferers. A protocol analyzer only decodes 802.11 frames, and ping results and DHCP lease tables say nothing about RF energy.

4. Question 4Radio Frequency (RF) Technologies

   A wireless engineer records a received signal of -70 dBm and a noise floor of -95 dBm at a client location. What is the signal-to-noise ratio at that point?

   1. A25 dB
   2. B-25 dB
   3. C35 dB
   4. D165 dB
   Show answer and explanationHide answer

   Correct answer: A

   SNR is the received signal level minus the noise floor, both in dBm, so -70 minus -95 gives 25 dB. The negative value reverses the subtraction, 35 dB is an arithmetic slip, and 165 dB adds the two magnitudes, which has no meaning here.

5. Question 5WLAN Network Architecture and Design Concepts

   A retailer runs stores with no on-site IT staff. It wants access points to provision themselves from a web portal, with firmware and wireless policies managed centrally over the internet. Which architecture fits best?

   1. AAutonomous access points configured one by one on site
   2. BCloud-managed access points
   3. CAd hoc IBSS peers that run without an access point
   4. DMesh backhaul links back to the headquarters network
   Show answer and explanationHide answer

   Correct answer: B

   Cloud-managed APs get configuration and firmware from an internet-hosted platform, which suits sites with no local IT staff. Autonomous APs must be configured on each device, IBSS has no access point at all, and mesh backhaul links APs to each other rather than providing central management.