Consider an additive white Gaussian noise (AWGN) channel with bandwidth  and noise power spectral density . Let  denote the average transmit power constraint.

Which one of the following plots illustrates the dependence of the channel capacity  on the bandwidth  (keeping  and  fixed)?

The generator matrix of a  binary linear block code is given by

The minimum Hamming distance  between codewords equals _________ (answer in integer).

 and  are Bernoulli random variables taking values in . The joint probability mass function of the random variables is given by:

The mutual information  is _________ (rounded off to two decimal places).

A source transmits symbols from an alphabet of size 16. The value of maximum achievable entropy (in bits) is _________.

The information bit sequence  is to be transmitted by encoding with Cyclic Redundancy Check 4 (CRC-4) code, for which the generator polynomial is . The encoded sequence of bits is ___________.

The frequency of occurrence of 8 symbols (a-h) is shown in the table below. A symbol is chosen and it is determined by asking a series of "yes/no" questions which are assumed to be truthfully answered. The average number of questions when asked in the most efficient sequence, to determine the chosen symbol, is _______ (rounded off to two decimal places).