Which item is the great majority of software vulnerabilities that have been discovered？（）

A.Influencing users to forward a call to a toll number （for example， a long distance or international number）
B.Influencing users to provide personal information over a web page
C.Using an inside facilitator to intentionally forward a call to a toll number （for example， a long distance orinternational number）
D.Influencing users to provide personal information over the phone

A.to the zone-pair
B.to the zone
C.to the interface
D.to the global service policy

A.when using the established keyword，a location close to the destination point to ensure that return trafficis allowed
B.an intermediate location to filter as much traffic as possible ActualTests.com
C.a location as close to the source traffic as possible
D.a location as close to the destination traffic as possible