112) Which of the following device is used with an X-25 network to provide service to asynchronous terminals

113) Frequency of failure and network recovery time after a failure are measures of what concept of a network

114) When a protocol specifies that address of the sender means the most recent sender and not the original source, what does this mean

115) Which of the following two networks can use possible hubs ?

116) Which of the following network access standard disassembler is used for connection station to a packet switched network ?