CWNA exam 2022 updated with complete solutions.

1. Which one of the following channels can be used for VHT transmissions? A. 1 B. 6 C. 11 D. 48 D. 48 2. As an RF wave propagates through space, the wave front experiences natural expansion that reduces its signal strength in an area. what term describes the rate at which this expansion happens? A. MU-MIMO B. Inverse square law C. Path spread phenomenon D. Fresnel zone thinning E. Ohm's law B. Inverse square law 00:00 3. Which unit of measurement is an absolute unit that is used to quantify power levels on a linear scale? A. dBm B. W C. dB D. mW E. VSWR A. dBm 4. An 802.11 WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB of loss. The cable is connected to an antenna with 16 dBi of gain. What is the EIRP power output? A. 10 mW B. 25 mW C. 50 mW D. 250 mW E. 1000 mW E. 1000 mW 5. What is always required to establish a high quality 2.4 GHz RF link at a distance of 3 miles (5 kilometers)? A. Minimum output power level of 2 W B. Accurate Earth Bulge calculations C. Grid antennas at each endpoint D. A minimum antenna gain of 11 dBi at both endpoints E. A Fresnel Zone that is at least 60% clear of obstructions E. A Fresnel Zone that is at least 60% clear of obstructions 6. What phrase defines Equivalent Isotropically Radiated Power (EIRP)? A. The power output from the radio into the RF cable B. The power output from the radio after cable losses C. The highest RF signal strength that is transmitted from a given antenna D. Reflected power due to an impedance mismatch in the signal path E. Power supplied from the transmission line to the antenna input C. The highest RF signal strength that is transmitted from a given antenna 7. When using an RF splitter to connect one transceiver to sector antennas loss is incurred. What is this loss called? A. Conversion loss B. Through loss C. Active loss D. Intentional loss B. Through loss 8. What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS? (Choose 2) A. The number of client stations associated to the BSS B. The power management settings in the access point's beacons C. The presence of co-located (10m away) access points on non-overlapping channels D. The data rates at which nearby client stations are transmitting and receiving data E. The layer 3 protocol used by each station to transmit data over the wireless link A. The number of client stations associated to the BSS D. The data rates at which nearby client stations are transmitting and receiving data 9. What facts are true regarding controllers and APs in a Split MAC architecture? (Choose 2) A. An IP tunnel is established between the AP and controller for AP management and control functions. B. Using centralized data forwarding, APs never tag Ethernet frames with VLAN identifiers or 802.1p CoS. C. With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator. D. Management and data frame types must be processed locally by the AP, while control frame types must be sent to the controller. E. In a distributed (local bridging) data forwarding model, the AP handles frame encryption and decryption. A. An IP tunnel is established between the AP and controller for AP management and control functions. E. In a distributed (local bridging) data forwarding model, the AP handles frame encryption and decryption. 10. What causes of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries? A. Data frames too large for the physical environment B. Client stations broadcasting with too much power C. Access pointsbroadcasting with too little power D. Large 802.11 cells with physically distributed stations D. Large 802.11 cells with physically distributed stations 11. ABC Company is planning a point-to-multipoint outdoor bridge deployment with standalone (autonomous) 802.11 bridge units. 802.1X/EAP will be used for bridge authentication. A Linuxbased RADIUS server will be used for authentication. What device in the bridge implementation acts as the 802.1X Authenticator? A. The RADIUS server B. All non-root bridges C. A designated non-root bridge D. The root bridge E. The Ethernet switch D. The root bridge 12. What terms accurately complete the following sentence? The IEEE 802.11-2012 standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, which is designed for use with pre-RSNA hardware. A. CCMP, TKIP B. 802.1X/EAP, WEP C. TLS, SSL D. CCKM, WEP E. RC5, RC4 A. CCMP, TKIP