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Define Congestion.
Congestion: This is uneconomic to give sufficient equipment to carry all the traffic which could possibly be offered to a telecommunication system. Inside a telephone exchange this is theoretically possible for all subscribers to make a call concurrently. A situation can hence arise that each of the trunks in a group of trunks are busy, and therefore this can accept further calls. This type of state is termed as congestion. Into a message-switched system, calls which arrive throughout congestion wait in a queue till an outgoing trunk becomes free. Therefore, they are delayed but not lost. These systems are so termed as queuing systems or delay system. A telephone exchange, in a circuit-switched system all attempts to make calls over a congested group of trunks is successful. These systems are so termed as lost-call systems. In a lost-call system the result of congestion is which the traffic in fact carried is less than the traffic offered to the system.
Q. Versions of small computer systems interface? SCSI-1 calls for a cable with 8 data wires plus one for parity. SCSI-2 allows use of multiple cables to support 16- or
Explain Direct or Indirect Communication in Inter-process communication. Several types of message passing system in Direct or Indirect Communication are given below:
Calculation of physical address and Logical address.
The main features of TCP are: Reliability: TCP makes sure that any data sent by a sender arrives at destination as it was sent. There can't be any data loss or change in the
Differentiate between synchronous and asynchronous input/output with the help of an example. The input-output operation is asynchronous input/output operation since after the s
a. Explain about exception? When do they occur? Show using an example how to give your own exception handler. b. Can you restrict the types of exception that a function can thro
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Dictator Dim wants to replace counting, in particular, counting the population of his land. To keep an accurate population count, Dictator Dim has instructed his secretary to add o
Before getting into the design the designer should go by the SRS prepared by the System Analyst. The main tasks of design are Architectural Design & Detailed Design. In Arch
What is dynpro?What are its components ? A dynpro (Dynamic Program) having of a screen and its flow logic and controls exactly single dialog steps. The dissimilar components
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