A successful web application is used by over two hundred thousand users. Due to this substantial load, the database is over bridged and fails frequently. All data, included critical user records and temporary session data, is stored in the database. Because of resource constraints, a new database system cannot be installed.Which change will reduce the load on the database?
MedLabML is a startup firm that moves patient data between different care providers to provide a "single patient view". They use a B2B system to exchange electronic business document with their key suppliers. They are seeking your advice about standards to review for improving their message-level security.Which standard or API would you recommend they read?
You have been tasked with improving the availability of an existing three tier application.What is your first stop in evaluating what changes should be made to the architecture to achieve the goal?
While analyzing an existing web application, you observe the following issues in the source code:✑ Duplicate control code is scattered throughout various view.✑ Business and presentation logic are mixed within these view.The next phase of the project involves refactoring the existing code to address these two issues.Which design pattern, if employed in the refactoring exercise, would most directly address the two issues?
You are using an open source integration framework in your project. However, key interfaces do not explicitly define several strange conditions you have repeatedly seen while testing.Which option is the name given to the anti pattern described above?
Your company requires all its developers to use a well-specified set of exception classes to model several common error conditions, many of the which are specific to its business. These exception classes are centrally maintained and come packaged in a library (a JAR file). The application you are developing needs to report a number of error conditions covered by this library to remote clients.Which paring of component type and remote access technology enables client applications to use the predefined exceptions as part of their natural programming model?
