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What is Message Oriented Middleware (MOM)?
Ans) MOM permits general purpose messages to be exchanged in a Client/Server system using message queues. Applications communicate over networks by only putting messages in the queues and getting messages from queues. It typically gives a very simple high level APIs to its services.
MOM's messaging and queuing permits clients and servers to communicate across a network without being linked by a private, dedicated, logical connection. The clients and server can run at dissimilar times. It is a post-office like metaphor.
What is Stop-and-Wait Automatic Repeat Request? Error correction in Stop-and-Wait ARQ is implemented by keeping a copy of the sent frame and retransmitting of the frame when th
What is Star topology Each station is directly connected to a common central node. Typically, each station attaches to a central node via two point-to-point links, one for tran
State the Disadvantages of adaptive routing process (1) The routing decision is more difficult; thus, the processing burden on network nodes enhances. (2) In most cases, ad
Given the address 172.16.2.120 and the subnet mask of 255.255.255.0. How many hosts are available? Ans) 172.16.2 120 is a standard Class B address with a subnet mask that permit
Q. Mechanical Characteristics of RS232 interface? - 9-pin connector - 9-pin connector is more usually found in IBM-PC but it covers signals for asynchronous serial com
Circuit switching is a term used in communication where the communicating nodes will be connected through a dedicated channel before any communication may take place. The methodolo
Connecting Devices of bridges - Five kinds: - Repeaters - Hubs - Bridges - Two- and three-layer switches - Repeaters and hubs - layer one of Internet model -
DLCI- Data Link Connection Identifier. A frame-relay service provider usually assigns DLCI values that are used by frame-relay to distinguish among different virtual circuits on th
Efficiency of a data communications system depends on three fundamental characteristics - Delivery: The system should deliver data to the correct destination. Data should be r
State about data and data files - Information The third and major component of the system liable to be attacked is the data and data files used by the company. It is the most s
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