QUESTION 12 Uncompressed voice grade digital signals require a link that can support 64 kbps data rate capacity. As such, methods are used to minimize digital files for transmission and storage. Select the following technique(s) that can be used. QUESTION 16 Identity the digital timing method used where the receiver synchronizes its own local clock using the incoming data stream 1. 1. a. use of DPCM, where only changes between samples are sent b. use of either loszy or lossiess digital compression techniques c. use of sophisticated algorithms that remove redundant bytes b. synchronous d. d. all of the above 10 points QUESTION 17 Which multiplexing method can be used by analog systems? 10 points I. QUESTION 13 The bit error rate (BER) of a communications link is influenced by: 1. a frequency division multiplexing (FDM) b. time division multiplexing (TDM) c. either FDM or TDAM . transmission power modulation method d. neither FDM or TDM d. all of the 10 points QUESTION 18 Time division multiplexing (TDM) and frequency division multiplexing (FDM) can be used in tandem together. 10 points QUESTION 14 CRC (cyclic redundancy check) Is a stronger error detection method than simple parity 1. . Truc Truc 10 points 10 points QUESTION 15 . ARQ (automatic repeat request) is considered a forward error correction (FEC) technique. Truc 10 points