In computer science , data hazards occurs when

Options

A. pipeline changes the order of read/ write access to operands
B. performance loss
C. machine size is limited
D. some functional unit is not fully pipelined

Answer

A

Explanation

A major effect of pipelining is to change the relative timing of instructions by overlap ping their execution . This introduces data and control hazards. Data hazards occurs when the pipeline changes the order of read/write accesses to operate ands so that the order differs from the order seen by sequentially executing instructions on the unpipelined machine.