14. A PABX provides queuing and automatic call back facility for outgoing calls. If there are 20 outgoing call requests per hour and if the average call duration is three minutes, how many trunks are needed to ensure delays less than 30 minutes for 90 per cent of the requests?

Which of the following statement is related to backward explicit congestion notification in frame relay network? a. If BECN is enable, then it will notify the source to reduces the congestion in network. O b. If BECN is enable, then it will notify the destination to reduces the congestion in network. Both (a) and (b). O d. None of these.

Design a synchronous counter that count 0,1,2,3,4,5,6,7,8,9,0 ... using Karnaugh map. 1 Add file

In time the use of the ________ became the more desirable approach because an important parameter of the equivalent circuit was determined by the actual operating conditions rather than using a data sheet value that in some cases could be quite different. a.hybrid b.hybrid-pi c.re d.pi