A programmer needs to understand sequencing to determine whether the order of steps will affects the outcome of the program.

true

Explanation:

Based on the information provided within the question it can be said that this statement is completely true. Programming code is built as a series of steps that are followed in a linear way. So much so that one action needs to be completed before another action can begin. There are also conditions such as, if step 1 is true then execute step 2, these are all sequences that must be understood by the individual writing the code.