Answer / Navin Kumar Rai

Routing in the telecom sector has several advantages, such as improving network performance, reducing congestion, and providing Quality of Service (QoS) guarantees. However, it also presents some challenges, including complex configuration, potential for routing loops, and increased network vulnerability to attacks.

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I am developing a payroll system mini project.I used file concept in program for reading and writing.When the program is reloading into the memory that is if i execute next time the file was cleaned and adding data from the starting this is my problem.I want to strore the previous data and if i want to add any record that should be next of previous data.Please help me.

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