CTD Techs Interview Questions and Answers

Python question was there and it was average level not tough

Simple coding questions which was good to go

Q1. General ops concepts
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Q1. Coding with technical questions
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Q1. General questions
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Q1. Some core Java questions
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Q1. Simple intro about yourself
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General knowledge and logical mathematics.

Q1. 2 week training with review
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Q2. Based on your review task.
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Q1. What are oops concepts in java, explain real time scenario
Ans. 
OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance allows a subclass to inherit properties and methods from a superclass.

• Polymorphism allows objects to take on multiple forms and behave differently based on their context.

• Encapsulation hides the implementation details of an object and only exposes necessary information.

• Abstraction allows for the creation of abstract class...read more
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Q2. Uses of interface, inheritance
Ans. 
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
• Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.

• Inheritance allows for code reuse and extension of existing classes, reducing code duplication.

• Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
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Q3. SQL query for join of tables
Ans. 
SQL query for joining tables
• Use JOIN keyword to combine two or more tables based on a related column

• Specify the columns to be selected using SELECT keyword

• Use ON keyword to specify the condition for joining the tables

• Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
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Q4. Java concepts used in your project
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Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
• Implemented inheritance to create a base class and derived classes with specific functionalities.

• Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.

• Implemented exception handling to handle errors and prevent program crashes.

• Used interfaces to define a set of methods that a ...read more
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Q5. Overloading vs overriding, practical uses
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Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
• Overloading is used to provide different ways to call a method with different parameters

• Overriding is used to provide a specific implementation of a method in a subclass

• Overloading is resolved at compile-time while overriding is r...read more
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Q1. What you know about the sales
Ans. 
Sales is the process of selling products or services to customers in exchange for money.
• Sales involves identifying potential customers and convincing them to purchase a product or service.

• It includes building relationships with customers, understanding their needs, and providing solutions.

• Sales also involves negotiating prices, closing deals, and following up with customers for repeat business.

• Sales can be done through...read more
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Q1. Do you know which language is use for frontend technology
Ans. 
The language used for frontend technology is typically HTML, CSS, and JavaScript.
• HTML is used for structuring web pages

• CSS is used for styling the web pages

• JavaScript is used for adding interactivity to the web pages
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Q1. Regarding salary discussion
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Q1. Detailed discussion on the projects worked on
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Q1. Technical questions and answers
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Q1. Face to face interview
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Q1. General HR questions
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