Gateway for Preparing Interviews
Why is the Android and iOS folder in the Flutter project? Android: This folder holds a complete Android project. It is used when you create the Flutter application for Android. When the Flutter code is compiled into the native code, it will get injected into this Android project, so that the result is a native Android … Read more
What are stored procedures? How is it useful A stored procedure is a set of statements/commands which reside in the database. The stored procedure is pre-compiled and saves the database the effort of parsing and compiling sql statements every time a query is run. Each database has its own stored procedure language, usually a variant … Read more
What is synchronization and why is it important? With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchronization, it is possible for one thread to modify a shared object while another thread is in the process of using or updating that object’s value. This often … Read more
What is application Widgets in Android? Application widgets are miniature application views that can be embedded in other applications and receive periodic updates. What is intent? It is a kind of message or information that is passed to the components. It is used to launch an activity, display a web page, send SMS, send email, … Read more
What is CloudFront? CloudFront is a computer delivery network which consists of distributed servers that delivers web pages and web content to a user based on the geographic locations of a user. What is VPC? VPC stands for Virtual Private Cloud. It is an isolated area of the AWS cloud where you can launch AWS … Read more
When would you prefer a class component over functional components? We prefer class component when the component has a state and lifecycle; otherwise, the functional component should be used. What is the difference between React Native and Xamarin? The essential differences between React Native and Ionic are: React Native is an open-source JavaScript framework developed … Read more
How can we implement polymorphism in Java ? Polymorphism is the capability of an action or method to do different things based on the object that it is acting upon. There are two types of polymorphism:- Method Polymorphism through overloading. Object polymorphism by inheritance / interfaces. What are the advantages of the model over the … Read more
What is CDATA A predefined XML tag for character data that means “don’t interpret these characters,” as opposed to parsed character data (PCDATA), in which the normal rules of XML syntax apply. CDATA sections are typically used to show examples of XML syntax. What is “application client container” ? A container that supports application client … Read more
Explain in depth Garbage collector ? Garbage collection is the process of automatically freeing objects that are no longer referenced by the program. This frees the programmer from having to keep track of when to free allocated memory, thereby preventing many potential bugs. Thus making programmers more productive as they can now put more effort … Read more
List some of the test types that are supported by Selenium. Different types of testing’s that we can achieve through Selenium are. Functional Testing Regression Testing Sanity Testing Smoke Testing Responsive Testing Cross Browser Testing UI testing (black box) Integration Testing What is the main disadvantage of implicit wait? The main disadvantage of implicit wait … Read more