IFT 372 MIDTERM QUESTIONS AND ANSWERS

True or False The FCC regulates prices, data sizes, and plans, including cell patterns and frequency reuse patterns - Answer-False True or False A communications network is a collection of switching nodes - Answer-True True or False A handoff (or handover) changes the routing of an ongoing voice call from one cell to another - Answer-True How many generations of cellular standards were developed to arrive at the modern day standard? - Answer-5 The SIM card does the following - Answer--Houses confidential and cryptographic algorithms -Contains the subscriber phone number The Service Switching Points SS-7 network node performs the following function - Answer-Switching centers used to establish, transport, or forward voice and data The Base Transceiver Station includes the following fucntions - Answer--Error protection is performed in BTS -Link level protocol LAPDm for signaling on the radio path -Allocated a set of frequency channels A ______ is a regional area that manages connections between subscribers - Answer-Mobile switching center Within a GSM radio network, there are two kinds of channels ______ and ______ - Answer-traffic signaling A ______ IC converts analog to binary serial bit stream and the reverse - Answer-Codec True or False CDMA signals are segregated by unique (orthogonal) PN sequences - Answer-True True or False A correlation function equals 1 if the two codes have nothing in common - Answer-False True