Answer:
DiffServ (Differentiated Service)
Explanation:
DiffServ (Differentiated Service) field is used to prioritize traffic in IPv4 packet.
DiffServ is used as QoS (quality of service) on networks at Layer 3, replacing former IPv4 TOS field to effectively deal with the web traffic and prioritization issues starting from 1998.
Answer:
Delete any emails that are attempts at social engineering
Explanation:
The actual URL of an email could tell if an hazardous, an unwanted or an unexpected email is being received, hence one can be sure of social engineering through this means. Hence, this could provide a solution to this problem.
Explanation:
just go to settings and press the first thing it shows which is subscription