A rollout plan from engineering has been sent to the NOC for deployment. Part of the plan involves
a complex software upgrade to a network element. The method of procedure provided by
engineering is nearly 100 individual steps long. Where do you expect to find backout procedures
to be specified?

A.
after each step that causes a change to the network

B.
after every 20 (+/- 5) steps

C.
after the midway point

D.
after the method of procedure is completed

E.
both after the midway point and after the method of procedure is completed