Certified Wireless Network Administrator (CWNA) Sample Questions
The fundamental level of wireless LAN certification for the CWNP Program is the CWNA certification. The ability to comprehend the foundations of RF behaviour and to describe the properties and functions of WLAN components as they are used in WLAN administration is measured by this test. The knowledge required to install, set up, and troubleshoot WLAN hardware peripherals and protocols for small business and enterprise deployments is also put to the test. The article provides a list of Certified Wireless Network Administrator (CWNA) Sample Questions that cover core exam topics including –
- Radio Frequency (RF) Technologies
- Antenna Concepts
- Wireless LAN Hardware and Software
- Network Design, Installation, and Management
- Wireless Standards and Organizations
- 802.11 Network Architecture
- Wireless LAN Security
- Troubleshooting
- How to Perform Site Surveys
Q1)When an RF signal travels through a substance other than empty space, it can occasionally bend. What word would you use to characterise this behaviour?
- A. Refraction
- B. Warping
- C. Scattering
- D. Reflection
Correct Answer: A
Q2)What issues could arise from an RF cable and connection impedance mismatch?
- A. Increased range of the RF signal
- B. Fewer MCS values in the MCS table
- C. Increased amplitude of the RF signal
- D. Excessive VSWR
Correct Answer: D
Q3) What variable has no impact on the maximum receiving distance of an RF signal?
- A. Receiving station’s radio sensitivity
- B. Receiving station’s output power
- C. Transmitting station’s output power
- D. Free Space Path Loss
Correct Answer: A
Q4) A cable with a 3 dB loss is attached to a 50 mW 50 mW WLAN transmitter. What is the EIRP at the antenna element if the cable is attached to an antenna with a 9dBi gain in Certified Wireless Network Administrator (CWNA) ?
- A. 26 dBm
- B. 13 dBm
- C. 23 dBm
- D. 10 dBm
Correct Answer: C
Q5) What is the true statement about the fade margin in a long-distance RF link in Certified Wireless Network Administrator (CWNA) ?
- A. On a long-distance RF link, a fade margin is not required if more than 80% of the first Fresnel zone is free of impediments.
- B. A function of frequency and distance, the fade margin measures signal loss through empty space.
- C. Fade Margin is an extra signal strength pad built into the RF system to account for unpredictably fading signals.
- D. A long-distance radio link’s fade margin should match the receiver’s low noise filter gain.
Correct Answer: C
Q6) What is the phrase used in wireless networking to denote the purposeful increase in RF energy in Certified Wireless Network Administrator (CWNA) ?
- A. Directed Radiation
- B. Beam Digression
- C. Passive Gain
- D. Active Amplification
Correct Answer: C
Q7) Which kinds of directional antennas do indoor Wi-Fi devices typically employ in a MIMO multiple spatial stream implementation?
- A. Dipole and yagi
- B. Grid and sector
- C. Patch and panel
- D. Dish and grid
Correct Answer: C
Q8) Which of the following statements concerning an RF antenna’s beamwidth is true in Certified Wireless Network Administrator (CWNA) ?
- A. Beamwidth measurements are made at the locations where the main lobe’s power reduces by 3 dB.
- B. An antenna polar chart’s beamwidth patterns show where the RF signal stops propagating.
- C. The beamwidth is less in both the horizontal and vertical dimensions when antenna gain is lower.
- D. The antenna’s azimuth chart displays the vertical beamwidth (in degrees).
Correct Answer: A
Q9)For an outside point-to-point WLAN bridge link, which of the following is not a factor taken into account when determining the Link Budget?
- A. Operating frequency
- B. MU-MIMO capabilities of the bridges
- C. Receive antenna gain
- D. Transmit power
Correct Answer: B
Q10) Which phrase best sums up WPA2 in terms of 802.11 wireless networks in Certified Wireless Network Administrator (CWNA) ?
- A. The WLAN security standard for defining is WPA2.
- B. The Wi-Fi Alliance developed the WPA2 certification, which verifies that devices correctly implement CCMP/AES.
- C. WPA2 is the upgraded version of WPA that uses TKIP rather than WEP to increase security.
- D. The 802.11 standard specifies that WPA2 implements CCMP/AES.
Correct Answer: A
Q11) The state of an IEEE 802.11 amendment is absurd. What effect does this proposed modification have on the IEEE 802.11 standard in Certified Wireless Network Administrator (CWNA) ?
- A. Devices based on the draught amendment will be made available, and the features of the draught amendment are included in the standard.
- B. No effect: An amendment is not incorporated into the standard until it is ratified.
- C. No effect: Up until a working group is established, draught amendments do not become part of the standard.
- D. As soon as an amendment reaches the draught stage, the standard is updated to reflect the new capabilities.
Correct Answer: B
Q12) You are setting up an AP that can support VHT. Which of the following channels, which was not accessible before to the adoption of 802.11 ac, is available in the 802.11-2016 standard?
- A. 56
- B. 161
- C. 153
- D. 144
Correct Answer: D
Q13) Which of the following is accurate about IEEE 802.11 WLANs’ use of the Orthogonal Frequency Division Multiplexing (OFDM) modulation method?
- A. BPSK modulation is used in OFDM to provide data speeds of up to 7 Gbps.
- B. The ERP, HT, and VHT PHYs all make use of OFDM, which was initially introduced in 802.11a.
- C. 5 GHz 802.11 transmissions are the only ones that use OFDM modulation.
- D. Frequency Hopping Spread Spectrum (FHSS) PHY devices employed OFDM.
Correct Answer: B
Q14) Which IEEE 802.11 physical layer (PHY) specification is compatible with and supports both HR/DSSS and ERP?
- A. DSSS (802.11-Prime)
- B. OFDM (802.11a)
- C. HT (802.11n)
- D. VHT (802.11ac)
Correct Answer: C
Q15)An AP is used by an 802.11-based network, which includes numerous clients that connect to it. iPhones, iPads, laptops, and one desktop are among the customers. Which WLAN use case is shown?
- A. Ad-hoc
- B. WPAN
- C. BSS
- D. IBSS
Correct Answer: C
Q16)What aspect of an 802.11n client station operating in a 2.4 GHz HT BSS is most likely to have a minimal impact on the application layer throughput?
- A. Changing the number of spatial streams the client station and AP are using
- B. Roaming Fast BSS Transition (FT) implementation
- C. Use of 802.11g radios to implement additional clients in the same BSS
- D. RF noise from more than ten Bluetooth transmitters close by
Correct Answer: B
Q17) If a single BSS is used, what ID is normally mapped to the MAC address of an AP?
- A. SSID
- B. Device ID
- C. VLAN ID
- D. BSSID
Correct Answer: D
Q18)What follows the payload at the end of each 802.11 data frame?
- A. Preamble
- B. MAC header
- C. PHY header
- D. FCS
Correct Answer: D
Q19) What is presumed when the transmitting STA doesn’t receive an ACK frame?
- A. The receiver processed the frame, but did not respond with an ACK frame because 802.11w is enabled
- B. The frame was correctly delivered
- C. The frame was not delivered and must be retransmitted
- D. The receiver is offline
Correct Answer: C
Q20)What security measure is outmoded in the 802.11 standard and never recommended for use in contemporary WLAN deployments?
- A. Shared Key Authentication
- B. Open System Authentication
- C. CCMP
- D. AES
Correct Answer: A
