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10+ Citrin Cooperman India Interview Questions and Answers

Updated 26 Jun 2024

Q1. tell me the basic pillars of opps

Ans.

The basic pillars of OOP are encapsulation, inheritance, and polymorphism.

  • Encapsulation: bundling of data and methods that operate on that data within a single unit

  • Inheritance: ability of a class to inherit properties and methods from a parent class

  • Polymorphism: ability of objects to take on multiple forms or behaviors depending on the context

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Q2. Html page starts with which tag?

Ans.

Html page starts with the <html> tag.

  • Html page starts with the <html> tag.

  • The <html> tag defines the root of an HTML document.

  • All other HTML elements must be nested inside the <html> tag.

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Q3. Why we use nosql database

Ans.

NoSQL databases are used for scalability, flexibility, and handling unstructured data.

  • Scalability: NoSQL databases can easily scale horizontally to handle large amounts of data and high traffic.

  • Flexibility: NoSQL databases do not require a predefined schema, allowing for easy modifications and additions to data.

  • Handling unstructured data: NoSQL databases are well-suited for storing and querying unstructured data like documents, graphs, and key-value pairs.

  • Examples: MongoDB, C...read more

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Q4. Difference between private and protected

Ans.

Private members are accessible only within the same class, while protected members are accessible within the same class and its subclasses.

  • Private members can only be accessed within the same class

  • Protected members can be accessed within the same class and its subclasses

  • Private members are not inherited by subclasses

  • Protected members are inherited by subclasses

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Q5. How many types of join?

Ans.

There are four types of joins in SQL: INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

  • INNER JOIN: Returns rows when there is at least one match in both tables.

  • LEFT JOIN: Returns all rows from the left table, and the matched rows from the right table.

  • RIGHT JOIN: Returns all rows from the right table, and the matched rows from the left table.

  • FULL JOIN: Returns rows when there is a match in one of the tables.

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Q6. diffrence between jre jdk jvm

Ans.

JRE is a runtime environment, JDK is a development kit, and JVM is a virtual machine.

  • JRE stands for Java Runtime Environment and is used to run Java applications.

  • JDK stands for Java Development Kit and is used to develop Java applications.

  • JVM stands for Java Virtual Machine and is responsible for executing Java bytecode.

  • JDK includes JRE and additional development tools such as compilers and debuggers.

  • JVM is platform-dependent and provides a layer of abstraction between Java c...read more

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Q7. Removed duplicate in array

Ans.

Remove duplicate strings in an array

  • Use a Set data structure to store unique strings

  • Iterate through the array and add each string to the Set

  • Convert the Set back to an array to get the final result

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Q8. What is join in sql?

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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Q9. Find unique value

Ans.

Find the unique value in an array of strings

  • Iterate through the array and use a hashmap to store the frequency of each element

  • Return the element with frequency 1 as the unique value

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Q10. Drupal 7 vs Drupal 8 comparison

Ans.

Drupal 8 offers improved performance, better security, and more modern features compared to Drupal 7.

  • Drupal 8 has a more user-friendly admin interface

  • Drupal 8 uses Symfony components for improved performance

  • Drupal 8 has better multilingual support out of the box

  • Drupal 8 has improved content authoring capabilities with CKEditor integration

  • Drupal 8 has enhanced mobile responsiveness with built-in responsive themes

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Q11. Drupal version upgradation process

Ans.

Drupal version upgradation process involves backing up data, updating core files, modules, and themes, testing the site, and deploying changes.

  • Backup the website files and database before starting the upgrade process

  • Update Drupal core files to the latest version

  • Update all modules and themes to be compatible with the new Drupal version

  • Test the website thoroughly to ensure all functionalities are working correctly

  • Deploy the changes to the live website after successful testing

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Q12. Drupal views concept using context filter &amp; aggregation

Ans.

Drupal views allow for filtering and aggregating content based on context filters.

  • Context filters allow you to filter content based on contextual information, such as the current user or page being viewed.

  • Aggregation allows you to group and summarize content based on certain criteria, such as counting the number of items in a category.

  • Combining context filters and aggregation can provide powerful ways to display and analyze content in Drupal views.

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Q13. Project work- Libraries used

Ans.

I have experience using various libraries such as React, Redux, and Express in my project work.

  • React

  • Redux

  • Express

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Q14. What chart to use to show year-wise trend?

Ans.

Use a line chart to show year-wise trend.

  • Line chart is the best option to show year-wise trend.

  • It helps to visualize the trend over time.

  • X-axis represents the year and Y-axis represents the data points.

  • Multiple lines can be used to compare trends.

  • Example: Line chart showing the sales trend of a company from 2015 to 2020.

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Q15. Steps to create custom theme in Drupal

Ans.

Creating a custom theme in Drupal involves creating a new folder in the themes directory and adding necessary files.

  • Create a new folder in the themes directory with a unique name

  • Add a .info.yml file to define the theme

  • Create a .theme file for theme-specific functions

  • Add CSS and JS files for styling and functionality

  • Enable the custom theme in the Drupal admin interface

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Q16. Create custom block in drupal

Ans.

To create a custom block in Drupal, you can use the Block module or create a custom module with a block plugin.

  • Enable the Block module if not already enabled

  • Navigate to Structure > Block layout to add a new custom block

  • Or create a custom module with a block plugin to define the block's content and settings

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Q17. Name the Scrum pillars

Ans.

The Scrum pillars are transparency, inspection, and adaptation.

  • Transparency: All aspects of the process must be visible to those responsible for the outcome.

  • Inspection: Scrum artifacts and progress must be inspected frequently to detect variances.

  • Adaptation: If an inspection reveals that one or more aspects of the process deviate outside acceptable limits, adjustments must be made.

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Q18. Explain about BRD

Ans.

BRD stands for Business Requirements Document, a formal document that outlines the business requirements for a project.

  • BRD is a key document in the project management process, detailing what the business needs in order to achieve its goals.

  • It includes information on the scope of the project, objectives, stakeholders, functional requirements, non-functional requirements, and constraints.

  • BRD serves as a communication tool between the business stakeholders and the project team, ...read more

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