Question 12 Consider the following transaction involving two bank account x and y. read(x); x:= x-50; write(x); read(y); y:= y+50; write(y) The constraint that the sum […]
Question 11 Consider a simple checkpointing protocol and the following set of operations in the log. (start, T4); (write, T4, y, 2, 3); (start, T1); (commit, […]
Question 9 When participants drop out of a study,leading to change in the nature of the sample,it would cause which of the following threats to internal […]