CNT Midterm || Questions with correct solutions.

A ______________ defines the format and the order of messages exchanged between two or more communicating entities, as well as the actions taken on the transmission and/or receipt of a message or other event. correct answers protocol What does a protocol specify? i. order of received messages ii. format of received messages iii. order of sent messages iv. format of sent messages v. all of the choices correct answers v Circuit switching allows more users than packet switching when users are rarely active at the same time true/false correct answers false In packet switching, there is no chance of packet loss true/false correct answers false Since the amount of buffer space in a packet-switched network is finite, an arriving packet may find that the buffer is completely full with other packets waiting for transmission. In this case, _______________ will occur correct answers packet loss There are two approaches for circuit switching: FDM and TDM true/false correct answers true Capacity and bandwidth of a link are the same as its transmission rate true/false correct answers true Which of the following delays depend on the length of physical layer? i. Propagation delay ii. Queuing delay iii. Transmission delay iv. All of the choices correct answers i The propagation speed depends on the physical medium of the link true/false correct answers true In addition to knowing the address of the host to which a message is destined, the sending process must also identify the receiving process (more specifically, the receiving socket) running in the host. This information is needed because in general a host could be running many network applications. A destination ___________________ serves this purpose. correct answers port number Servers in client-server architecture of network applications can have dynamic IP. correct answers false Another characteristic of the client-server architecture is that the server has a