This set of tricky Digital Communication Questions & Answers focuses on “Quantization”. 1. Uniform quantizer is also known as a) Low rise type b) Mid rise type c) High rise type d) None of the mentioned 2. The SNR value can be increased by _____ the number of levels. a) Increasing b) Decreasing c) Does … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Quantization”. 1. Spread spectrum is used for a) Encrypting signal b) Hiding signal c) Encrypting & Hiding signal d) None of the mentioned 2. Which is a quantization process? a) Rounding b) Truncation c) Rounding & Truncation d) None of the mentioned … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Information and Coding”. 1. Self information should be a) Positive b) Negative c) Positive & Negative d) None of the mentioned 2. The unit of average mutual information is a) Bits b) Bytes c) Bits per symbol d) Bytes per symbol 3. … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Interpolation”. 1. Interpolation is done by a) Curve fitting b) Regression analysis c) Curve fitting & Regression analysis d) None of the mentioned 2. Interpolation provides a mean for estimating functions a) At the beginning points b) At the ending points c) … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Codes and coding technique”. 1. While recovering signal, which gets attenuated more? a) Low frequency component b) High frequency component c) Low & High frequency component d) None of the mentioned 2. Mutual information should be a) Positive b) Negative c) Positive … Read more
This set of Advanced Digital Communication Questions & Answers focuses on “Error Detection and Correction”. 1. Which needs re-sending of signal? a) Error correction b) Error detection c) Error correction & detection d) None of the mentioned 2. Which needs more check bits? a) Error correction b) Error detection c) Error correction & detection d) … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Error detection and correction 1”. 1. In layering, n layers provide service to a) n layer b) n-1 layer c) n+1 layer d) none of the mentioned 2. Which can be used as an intermediate device in between transmitter entity and receiver … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “ISDN and interface”. 1. ISDN integrates speech and data on a) Different lines b) Same lines c) Different & Same lines d) None of the mentioned 2. ISDN is a a) Packet switched network b) Circuit switched telephone network c) Packet switched … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Random processes”. 1. Which method is much better and efficient? a) Vector quantization b) Scalar quantization c) Vector & Scalar quantization d) None of the mentioned 2. Analog source coding method are a) Temporal waveform coding b) Spectral waveform coding c) Model … Read more
This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Protocols”. 1. Protocol is a set of a) Formats b) Procedures c) Formats & Procedures d) None of the mentioned 2. The time required to transmit frame depends on a) Frame size b) Channel capacity c) Frame size & Channel capacity d) … Read more
