I have two questions related to credit analysis that I need to know the methods behind solving them and how ( I need to understand this if possible)

any help would be appreciated (;

4. ISK have entered an 8-year semi-annual receiver interest rate swap with $500 million notional and a fixed swap rate of 5.25%, with CBC as its counterparty. CDS spreads referencing the senior unsecured debts of ISK and CBC, s, and so, are tabulated below in basis points (bps): T SI SC ly 2y 16.54 27.13 49.32 78.21 14.66 24.32 33.67 44.28 5y 107.77 53.79 7y 10y 140.37 168,36 68.43 79.86 Assume the recovery rates of ISK and CBC are 40% and 45% respectively, and the default intensities are linear in time: *(t) = doi+Ait; i=1,0 a. Estimate default intensity equations for ISK and CBC. ( 25 marks b. Assuming default can only occur immediately before each swap date, estimate the unconditional probabilities of default for ISK and CBC at all possible default dates during the life of the swap. [ 25 marks 4. ISK have entered an 8-year semi-annual receiver interest rate swap with $500 million notional and a fixed swap rate of 5.25%, with CBC as its counterparty. CDS spreads referencing the senior unsecured debts of ISK and CBC, s, and so, are tabulated below in basis points (bps): T SI SC ly 2y 16.54 27.13 49.32 78.21 14.66 24.32 33.67 44.28 5y 107.77 53.79 7y 10y 140.37 168,36 68.43 79.86 Assume the recovery rates of ISK and CBC are 40% and 45% respectively, and the default intensities are linear in time: *(t) = doi+Ait; i=1,0 a. Estimate default intensity equations for ISK and CBC. ( 25 marks b. Assuming default can only occur immediately before each swap date, estimate the unconditional probabilities of default for ISK and CBC at all possible default dates during the life of the swap. [ 25 marks