Gateway for Preparing Interviews
Explain about mapping description file Mapping description file is the second file which Hibernate uses to configure its functions. This mapping file has an extension *.hbm which instructs mapping between Java class and database tables. The usage of mapping description file rests entirely upon the business entity. Explain about transparent persistence of Hibernate Transparent persistence is provided … Read more
There are 5 lanes on a race track. One needs to find out the 3 fastest horses among the total of 25. Determine the minimum number of races to be conducted in order to find the fastest three cars. Now, you can start solving the problem by considering the number of cars racing. Since there … Read more
What is the latest released version of Angular? Angular 10 is the latest released version of Angular, released on June 24, 2020. What is String Interpolation in Angular 8, and why is it used? String Interpolation is a one-way data-binding technique in Angular 8. It is used to extract the output data from a TypeScript … Read more
What are the different types of Blockchains? The different types of blockchains which introduce to the world are: There are mainly three types of Blockchains introduced to the world. 1. Public Blockchain A Public blockchain is a kind of blockchain which is “for the people, by the people, and of the people.” There is no … Read more
What is the wait/notify mechanism? This deals with concurrent programming. The wait() and notify() methods are designed to provide a mechanism to allow a thread to be block until a specific condition is met. However, java.util.concurrent should be used instead of wait() and notify() to reduce complexity. How can a collection object be sorted? // … Read more
What is backing bean ? A JavaBeans component that corresponds to a JSP page that includes JavaServer Faces components. The backing bean defines properties for the components on the page and methods that perform processing for the component. This processing includes event handling, validation, and processing associated with navigation. What does web module contain?The web … Read more
How does data flow between components in a Vue.js app? In Vue.js, the data is passed to child components from the parent component using a prop or a custom attribute. This custom attribute becomes a property on the child component instance. This procedure is called a one-way data flow. Once the parent component updates a … Read more
What is the physical storage length of DATE data type? The physical storage length of TIME data type is 4 bytes. How many types of page locks can be held in DB2? Three types of page locks can be held in DB2: Exclusive Update Share What is DBRM? DBRM stands for Database Request Module. It … Read more
What is the usage of Django-admin.py and manage.py? Django-admin.py: It is a Django’s command line utility for administrative tasks. Manage.py: It is an automatically created file in each Django project. It is a thin wrapper around the Django-admin.py. It has the following usage: It puts your project’s package on sys.path. It sets the DJANGO_SETTING_MODULE environment variable to points … Read more
Write down some modules that are used in Drupal? Some of the modules recommended are: Views Token Ctools Quicktabs Pathauto What is node in Drupal? Drupal treats all the stored content on its web site as nodes. Any piece of content like blog, article, page, etc is considered as node. Although, the comments are not … Read more