Discussion
A set of two tasks has a utilisation of 0.85. Under rate monotonic the set is
Answer: A
Correct answer: possibly schedulable, the bound for two tasks being 0.828
\[ 2\left(2^{1/2}-1\right) = 0.828, \] and 0.85 exceeds it. The bound is sufficient but not necessary, so exceeding it proves nothing - the set may still meet every deadline, and response time analysis is needed to find out.
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