Web Science/Part1: Foundations of the web/Transmission Control Protocol/Port numbers/quiz

{How many port numbers are placed in a TCP package? - 1 + 2 - 3 - 4
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{A TCP port number consists of how many bits? - 8 + 16 - 32 - 64 - 128
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{What is a network socket?} - a pair consisting of port numbers - a pair consisting of ip addresses + a pair consisting of an IP address and a port number - a quadruple consisting of 2 port numbers and two IP addresses

{What kind of incoming TCP packets are usually accepted by a host?} + all packets where the destination port is the same as an open port of the host. - all packets where the source port is the same as an open port of the host. + all packets where the destination port corresponds to solicited traffic. - all packets where the source port corresponds to solicited traffic.

{What port number is chosen as the source port of outgoing TCP packets?} - a random number that is not used as source port for any established connection of the host + a random number that is not used as source port for any established connection of the host and is not an reserved port - if possible the destination port. If this is used it for any other connection it is increased by one until it becomes available. - the host does not choose a source port number. A number bigger than 1000 is assigned by the server in his SYN ACK Message during the three way handshake.
 * no this is not true the number has to be bigger than 1000