1) 802.11 technology is typically deployed at which fundamental layer of network architecture? a) Core b) Distribution c) Access Points d) Network 2) Which organization is responsible for enforcing maximum transmit power rules in an unlicensed frequency band? a) IEEE b) Wi-Fi Alliance c) ISO d) None of the above 3) 802.11 wireless bridge links are typically associated with which network architecture layer? a) Core b) Distribution c) Access d) Network 4) The 802.11-2020 standard was created by which organization? a) IEEE b) OSI c) ISO d) Wi-Fi Alliance 5) What organization ensures interoperability of WLAN products? a) IEEE b) ITU-R c) ISO d) Wi-Fi Alliance 6) What type of signal is required to carry data? a) Communications signal b) Data signal c) Carrier signal d) Binary signal 7) Which keying method is most susceptible to interference from noise? a) FSK b) ASK c) PSK d) DSK 8) Which sublayer of the OSI model's Data-Link layer is used for communication between 802.11 radios? a) LLC b) PLCP c) MAC d) PMD 9) While performing some research, Janie comes across a reference to a document titled REC 3935. Which organization's website would be best to further research this document? a) IEEE b) Wi-Fi Alliance c) WECA d) FCC 10) What are the three logical planes of operation for network telecommunications? a) Management b) Core c) Control d) Access 11) Which wave properties can be modulated to encode data? a) Amplitude b) Frequency c) Phase d) Wavelength 12) Carrier communication mechanisms operate at which layers of the OSI model? a) Network b) Physical c) Transport d) Data-Link 13) The height or power of a wave is known as what? a) Phase b) Frequency c) Amplitude d) Wavelength 14) Wi-Fi CERTIFIED 6 certifies the operation and capabilities of which 802.11 wireless standard? a) 802.11ac b) 802.11ax c) 802.1X d) 802.11ay 15) Which of the following is the responsibility of the Internet Engineering Task Force (IETF)? a) RFC's b) 802 standards c) Wi-Fi CERTIFIED d) Regulatory rules 16) Which wireless communications parameters are typically governed by a local regulatory authority? a) Frequency b) Bandwidth c) Maximum transmit power d) Oceanic Properties 17) What type of communications do 802.11 radios use to transmit and receive? a) Simplex b) Half-duplex c) Full-duplex d) Echo-duplex 18) A wave is divided into degrees. How many degrees make up a complete wave? a) 90 b) 180 c) 212 d) 360 19) What are the advantages of using unlicensed frequency bands for RF transmissions? a) No regulations b) No financial cost c) Anyone can use d) No rules 20) The OSI model consists of how many layers? a) Four b) Six c) Seven d) Nine

CWNA Chapter 1 Quiz

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