問題文
A capture shows a connection recorded as 10.20.5.31:49812 -> 198.51.100.44:8080. Which two statements about the elements of this connection are correct? (Select two.)
選択肢
- The internal host chose 49812 as an ephemeral source port for this connection.
- The direction of the connection cannot be determined from these fields, because both numbers are chosen freely by the two ends and neither of them is reserved for the side that starts the exchange or for the side that answers it.
- Port 8080 always means the traffic is a web application.
- The destination port 8080 identifies the service being reached, and it is the field that should be compared with what the destination host is expected to offer.
- The source port 49812 identifies the application protocol in use.