SQU wants to restrict some network traffic for some communication scenarios highlighted in the list below. For each of the given scenario, suggest what type of firewall should they implement to achieve the respective objective? You must provide, at least a 1-line, reason for your suggested type of firewall. [8 points] 1. All packets going to www.youtube.com should be blocked 2. The main router should hide the source IP addresses in the packets leaving the organization. 3. Social Media applications, such as Whatsapp, IMO and Facebook Messenger, should be blocked 4. Connection states for all incoming requests/packets should be recorded and analyzed to provide protection against DoS attacks