Inorder to know how well the application is working, you have to monitor the web application once it is deployed.
This monitoring is because,many issues may occur as mentionsd below:
1) Mainly the issues may occur based on the number of users accessing the application.
2) The issue may also occur due to the unpredictable nature of the user's interaction.
3) It may also due to the possibility of the malicious attack.
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