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Explain briefly how firewalls protect network.
A firewall is simply a program or hardware device that filters the information coming by the Internet connection into your private network or computer system. If an incoming packet of information is flagged by the filters, it is not permitted by the network.
Syntax errors and logical errors: Syntax errors also called as compilation errors are caused by violation of the grammar rules of the language. The compiler detects, isolate th
Electronic Data Interchange (EDI ) is used by companies for transactions that happen on regular basis to a pre-determined format. It is one of the electronic commerce technologies.
How to declare array in c
What is asynchronous transmission An asynchronous transmission technique used in many interactive terminals employ special bits. With this method each character consists of thr
Explain how presentation layer helps in establishing and processing data in End to End layers. The idea of the presentation layer is to stand for information to the communicati
What is time out mechanism. If one unit is faulty the data transfer will not be done. Such an error can be detected using time out mechanism which makes an alarm if the data tr
Operations from events During analysis, events which are sent to target objects. An operation on these object are presented as labels on transitions and should not be explicit
What is branch target? As a result of branch instruction, the processor fetches and implements the instruction at a new address called as branch target, instead of the instruct
Q. Show a string in assembly language? MOV AH, 09H MOV DX, OFFSET BUFF INT 21H Here data in input buffer stored in data segment is intended to be displayed on mo
Explain the Logic symbols - Flip Flops? These flip-flops are as well called Master-Slave flip-flops simply because their internal construction is divided into two sections. Th
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