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100+ CFO Bridge Interview Questions and Answers

Updated 28 Feb 2025
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Q101. what are the types of normalization

Ans.

Normalization is a database design technique that organizes data in a structured manner to eliminate redundancy and improve data integrity.

  • Normalization helps in reducing data redundancy by breaking down a large table into smaller, more manageable tables.

  • There are different normal forms, such as 1NF, 2NF, 3NF, BCNF, and 4NF, each with specific rules and dependencies.

  • Normalization ensures data integrity by minimizing data anomalies, such as update, insert, and delete anomalies...read more

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Q102. How to update new PHP version

Ans.

To update PHP version, download the latest version from php.net, backup your files, update php.ini, and restart the server.

  • Download the latest PHP version from php.net

  • Backup your files before updating

  • Update php.ini configuration file

  • Restart the server to apply changes

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Q103. What is Dispatcher servlet

Ans.

Dispatcher servlet is the front controller of Spring MVC framework.

  • It receives all incoming requests and delegates them to appropriate handlers.

  • It uses HandlerMapping to map requests to appropriate handlers.

  • It uses HandlerAdapter to invoke the appropriate handler method.

  • It uses ViewResolver to resolve the view for the response.

  • It is configured in web.xml or through Java configuration.

  • Example: DispatcherServlet dispatcherServlet = new DispatcherServlet(context);

  • Example: org.sp...read more

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Q104. Join in sql define and explain

Ans.

Join in SQL is used to combine rows from two or more tables based on a related column between them.

  • Join is used to retrieve data from multiple tables based on a related column

  • Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

  • Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

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Q105. What is ad hoc testing?

Ans.

Ad hoc testing is informal testing without any predefined test cases or plans.

  • Ad hoc testing is performed without any specific test design or documentation.

  • Testers explore the application freely to find defects.

  • It is often used to quickly identify issues that may not be found through formal testing.

  • Ad hoc testing can be done at any stage of the development process.

  • Examples include randomly clicking on buttons, entering unexpected data, or using the application in unconvention...read more

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Q106. Bootstrap using responsible website

Ans.

Bootstrap is a front-end framework that helps in creating responsive websites by using a grid system and predefined classes.

  • Bootstrap provides a grid system with 12 columns that automatically adjusts based on screen size.

  • It includes responsive utility classes like 'd-none' and 'd-md-block' to show/hide content based on screen size.

  • Bootstrap also offers responsive navigation components like the navbar that collapses into a hamburger menu on smaller screens.

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Q107. Difference between cfset and cfparam

Ans.

cfset is used to set a variable value, while cfparam is used to initialize a variable if it does not already exist.

  • cfset is used to assign a value to a variable, while cfparam is used to initialize a variable if it does not already have a value

  • cfset can be used multiple times to change the value of a variable, while cfparam will only initialize the variable once

  • Example: vs

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Q108. Redux for global state management

Ans.

Redux is a popular library for managing global state in React applications.

  • Redux helps in managing the state of the entire application in a single store.

  • It provides a predictable state container that can be accessed and modified using actions and reducers.

  • Redux allows for a unidirectional data flow, making it easier to debug and trace changes in the application state.

  • It is commonly used in large-scale applications where multiple components need access to shared state.

  • Example:...read more

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Q109. Hibernate and its implementation

Ans.

Hibernate is a popular Java ORM framework that simplifies database interactions by mapping Java objects to database tables.

  • Hibernate is an ORM (Object-Relational Mapping) framework that allows developers to map Java objects to database tables and vice versa.

  • It provides a way to perform database operations using Java objects without writing complex SQL queries.

  • Hibernate handles the mapping of Java classes to database tables, and Java data types to SQL data types.

  • It supports va...read more

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Q110. Advantage and disadvantage of framework.

Ans.

Frameworks provide structure and pre-built components for software development, but can also limit flexibility and require learning curve.

  • Advantage: Provides structure and pre-built components for faster development

  • Advantage: Can improve code quality and maintainability

  • Disadvantage: Can limit flexibility and customization

  • Disadvantage: Requires learning curve and potential dependency issues

  • Example: ReactJS provides a framework for building user interfaces

  • Example: Ruby on Rails...read more

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Q111. Database connection with CFML

Ans.

Database connection with CFML involves creating a datasource and using CFQUERY tag to interact with the database.

  • Create a datasource in ColdFusion Administrator

  • Use CFQUERY tag to execute SQL queries

  • Use CFQUERYPARAM tag to prevent SQL injection

  • Example: SELECT * FROM myTable

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Q112. Closure in js Async and await

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Q113. Use any tool for automation

Ans.

Selenium is a popular tool for automation testing

  • Selenium is widely used for automating web applications

  • It supports multiple programming languages like Java, Python, C#

  • Selenium WebDriver is used for interacting with web elements

  • Selenium Grid allows parallel execution on multiple browsers and platforms

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Q114. All oops concept

Ans.

Object-oriented programming concepts like inheritance, encapsulation, polymorphism, and abstraction.

  • Inheritance: Allows a class to inherit properties and behavior from another class.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit.

  • Polymorphism: Ability to present the same interface for different data types.

  • Abstraction: Hiding the complex implementation details and showing only the necessary features.

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