QUESTION 16 Which risk is most effectively mitigated by an upstream Internet service provider (ISP)? Distributed denial of service (DDoS) Lost productivity Firewall configuration error Unauthorized remote access QUESTION 17 During what phase of a remote access connection does the end user prove his or her claim of identity? Identification Authentication Authorization Tokenization BOOOO QUESTION 18 Juan's web server was down for an entire day last September. It experienced no other downtime during that month. Which one of the following represents the web server uptime for that month? 96.67% 3.33% 99.96% 0.0496