of data. Q12. The network layer is concerned with_ a) bits b) frames c) datagram packets d) bytes Q13. The network layer protocol for internet is a) ethernet b) internet protocol c) hypertext transfer protocol d) file transfer protocol Q14. Transport layer aggregates data from different applications into a single stream before passing it to a) network layer b) data link layer c) application layer d) physical layer Q15. Which of the following are transport layer protocols used in networking? a) TCP and FTP b) UDP and HTTP c) TCP and UDP d) HTTP and FTP Q16. Transmission control protocol a) is a connection-oriented protocol b) uses a three way handshake to establish a connection c) receives data from application as a single stream d) all of the mentioned Q17. A is a TCP name for a transport service access point. a) port b) pipe c) node d) protocol