Solution:Assumptions 1 → According to assumption 1 IT jobs are not secure. It can’t be followed,because according to the argument due to the IT recession, many software engineers lost their jobs. We can’t be sure that IT jobs are not secure. So assumption 1 is not implicit.
Assumption 2 → According to assumption 2, IT companies lay off employees quite often. We are not sure the reason, there can be many reasons for IT companies laying off employees. So assumption 2 is not implicit.
Neither assumption 1 nor 2 is implicit.