CWNA Questions and Correct Answers the Latest Update

At which layers of the OSI model does 802.11 technology operate? Data Link and Physical Which Wi-Fi Alliance certification defines the mechanism for conserving battery life that is critical for handheld devices such as bar code scanners and VoWiFi phones? A. WPA2-Enterprise B. WPA2-Personal C. WMM-PS D. WMM-SA E. CWG-RF WMM-PS Which of these terms can best be used to compare the relationship between two radio waves that share the same frequency? A. Multipath B. Multiplexing C. Phase #Examify | #OnlineExams | #TestPrep | #StudyResources | #AcademicSuccess | #ExamPreparation | #QuizTime | #LearningTools | #Education | #StudentSupport Examify | Smart Grades | Latest update D. Spread spectrum Phase A bridge transmits at 10 mW. The cable to the antenna produces a loss of 3 dB, and the antenna produces a gain of 20 dBi. What is the EIRP? A. 25 mW B. 27 mW C. 4 mW D. 1,300 mW E. 500 mW 500 mW 10/2=5 5x10x10=500 dBi is an expression of what type of measurement? A. Access point gain B. Received power C. Transmitted power D. Antenna gain E. Effective output #Examify | #OnlineExams | #TestPrep | #StudyResources | #AcademicSuccess | #ExamPreparation | #QuizTime | #LearningTools | #Education | #StudentSupport Examify | Smart Grades | Latest update Antenna gain What are some possible effects of voltage standing wave ratio (VSWR)? (Choose all that apply.) A. Increased amplitude B. Decreased signal strength C. Transmitter failure D. Erratic amplitude E. Out-of-phase signals Decreased signal strength Transmitter failure Erratic amplitude When installing a higher-gain omnidirectional antenna, which of the following occurs? (Choose two.) A. The horizontal coverage increases. B. The horizontal coverage decreases. C. The vertical coverage increases. D. The vertical coverage decreases. The horizontal coverage increases. and The vertical coverage decreases. #Examify | #OnlineExams | #TestPrep | #StudyResources | #AcademicSuccess | #ExamPreparation | #QuizTime | #LearningTools | #Education | #StudentSupport Examify | Smart Grades | Latest update 802.11ac VHT radios are backward compatible with which IEEE 802.11 radios? A. 802.11 legacy (FHSS) radios B. 802.11g (ERP) radios C. 802.11 legacy (DSSS) radios D. 802.11b (HR-DSSS) radios E. 802.11a (OFDM) radios F. 2.4 GHz 802.11n (HT) radios G. 5 GHz 802.11n (HT) radios H. None of the above 802.11a (OFDM) radios and 5 GHz 802.11n (HT) radios Which IEEE 802.11 amendment specifies the use of up to eight spatial streams of modulated data bits? A. IEEE 802.11n B. IEEE 802.11g C. IEEE 802.11ac D. IEEE 802.11s E. IEEE 802.11w #Examify | #OnlineExams | #TestPrep | #StudyResources | #AcademicSuccess | #ExamPreparation | #QuizTime | #LearningTools | #Education | #StudentSupport Examify | Smart Grades | Latest update IEEE 802.11ac Which of the following measures the difference between the power of the primary RF signal compared against the sum of the power of the RF interference and background noise? A. Noise ratio B. SNR C. SINR D. BER E. DFS SINR Signal-to-interference-plus-noise (SINR) What signal characteristics are common in spread spectrum and OFDM-based signaling methods? (Choose two.) A. Narrow bandwidth