CBRS Exam Questions And Correct Answers Graded A

CBRS Exam Questions And Correct Answers Graded A A CPI needs to record the _______ and _______ with in 50 meters or better. - correct answerlatitude and longitude CBRS - correct answerCitizens broadband radio service and shared spectrum. CBRS band - correct answer MHz frequency range and established by FCC in 2015. CBRS vision - correct answerUsed for fixed and mobile broadband services. advantages of CBRS - correct answer1. Efficient 2. Time to market. 3. Cost 4. Feasibility SAS (Spectrum access system) - correct answerIs the centralized cloud service that manages CBRS transmission to protect higher priority users from interference. The three main entities for CBRS - correct answer1. FCC 2. Winnforum 3. CBRS Alliance CPI (certified professional installer) - correct answerEnsures data entered into the SAS is correct and has the right data. The SAS needs this information to protect higher end users. CBRS Three tiers - correct answerTier 1. Incumbent Tier 2. PAL ( Priority Access License) Tier 3. GAA (General Authorized Access) Tier 1 Incumbents - correct answerServices using the band before CBRS was around. Tier 2 PAL - correct answerCBRS user that pay for a license at auction to receive interference protection. Tier 3 GAA - correct answerIs free to use by any opportunistic users. What does the SAS do? - correct answerThe SAS gathers information from data bases maintained by the FCC to ensure lower priority user are not interfering with higher priority users. CBSD - correct answerAre devices that transmit in the CBRS band to end users. CBSD need what before that can transmit in the CBRS band? - correct answerCBSD need authorization from the SAS before transmitting to ensure there is no interference to higher priority users. Some CBSD communicate through a ________ to access the SAS. - correct answerDomain Proxy EUD - correct answerEnd User Device. The SAS can ________ or __________ access. - correct answerAllow or disallow When the SAS detects an incumbents user all lower end user must get out of the way within _______. - correct answer5 minutes ESC - correct answerEnvironmental sensing capability ESC detect when a incumbent user is broadcasting in the CBRS band and communicates with the _______ to alert all lower end tiers. - correct answerSAS CPI is responsible for? - correct answerEntering accurate information about all CBSD to the SAS. A CBSD need to be authorized by __________ before it can be used the transmit in the CBRS band. - correct answerFCC First a CBSD must send a ______________ to the SAS. The SAS with communicate with the CBSD by sending a ____________ code. - correct answerRegistration request. Registration response. Second, once a CBSD is registered the CBSD must then send a ____________ to the SAS so see what Spectrum is being used by other users. The SAS will respond back to the CBSD with a __________. - correct answer1. Spectrum inquiry request. 2. Spectrum inquiry response with a list of frequencies and TX power the CBSD can use. Third the CBSD will send a __________ to the SAS asking to use a range of CBRS spectrum at a giving TX power. (Ex. id like to use 3570 MHz - 3590 MHz at TX power of 27 dBm.) If the SAS approves it will give a _________. - correct answer1. Grant request. 2. ID for the spectrum grant.d Last before a CBSD can transmit is must send a ________. The SAS with respond with Heartbeat respond code. - correct answerHeartbeat request A CBSD is required to heartbeat at least once every ____________ to the SAS. - correct answer4 minutes If a CBSD stops it heartbeat to the SAS is must stop ________ until is successfully heartbeats again. - correct answerTransmitting What are the two categories of CBSD - correct answer1. Category A 2. Category B HAAT - correct answerHeight above average terrain A category A CBSD must not be more than _______ meters above ground level. - correct answer6 Category B CBSD do not have a height __________. - correct answerrequirement A CPI need to calculate the HAAT of a CBSD in order to assign as either a Category __________. - correct answerA or B CBSD To calculate HAAT you must know the_____ _____ and _____ ____. - correct answerGround elevation and Antenna height All FCC approved CBSD have an __________ and __________ to create the CBSD unique device identifier. - correct answerFCC ID and serial number The SAS uses the ________ to identify all the CBSD. - correct answerUnique device identifier If a CBSD has more than two antennas you must assign a unique serial number as registrar sector 1 ________ and sector 2 ___________. - correct answer12345.1 and 12345.2 A category A CBSD is primarily used _________ and TX at a _______but can be used _____ _____ and TX a ______. - correct answer1. Indoors, lower power 2. out doors, higher power A CPI must give the height of the antenna within ________ meters. - correct answer3 What are the four antenna parameters. - correct answer1. Antenna Azimuth 2. Antenna down tilt