Which activity can produce bugs that are harmful to the security of a Web server?

Let r be a robotic arm with a fixed base and seven links. the last joint of r is a prismatic joint, the other ones are revolute joints. give a set of parameters that determines a placement of r. what is the dimension of the configuration space resulting from your choice of parameters?

Which excel file extension stores automated steps for repetitive tasks?

Plz ( which is an example of a good url?