you work for a company that offers their services through the internet. therefore, it is critical that your website performs well. as a member of the it technician staff, you receive a call from a fellow employee who informs you that customers are complaining that they can't access your website. after doing a little research, you have determined that you are a victim of a denial-of-service attack. as a first responder, which of the following is the next best step to perform?