Cogniter Technologies Software Engineer Interview Questions and Answers

Q1. Resume related questions
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Q1. Technology related
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Q1. Discuss everything
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Q1. Logical question
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Q2. Basic opps and collection
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Basic Maths English and reasoning questions

Q1. All based on resume
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Q2. Java question like prime no , patterns , arrray and string
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Q3. Conceptual questions like interface package and all based on project and internships
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Q1. Some puzzels and basic hr question like where u see urself ,tell about ur city ,what u will do if not get selected
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Q1. What do you mean by ERD?
Ans. 
ERD stands for Entity Relationship Diagram, a visual representation of entities and their relationships in a database.
• ERD is used to design and model databases.

• It shows the relationships between entities, such as one-to-one, one-to-many, and many-to-many.

• Entities are represented as rectangles, and relationships are represented as lines connecting them.

• Attributes of entities are also shown in ERD.

• Example: A customer can...read more
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Q2. What is hoisting?
Ans. 
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their scope.
• Variable declarations are hoisted but not their values

• Function declarations are fully hoisted

• Let and const declarations are not hoisted
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Q3. What is difference the between array map, array filter and for each?
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Array map transforms each element of an array, array filter filters elements based on a condition, and for each iterates over each element.
• Array map returns a new array with transformed elements

• Array filter returns a new array with elements that pass a condition

• For each does not return anything, it just iterates over each element

• All three methods do not modify the original array

• Examples: map - doubling each element of ...read more
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Make an api using express, mongo and jwt

Q1. Why do you want to join us?
Ans. 
I want to join because of the company's reputation, innovative projects, and collaborative work environment.
• Reputation: The company has a strong reputation in the industry, known for its high-quality software solutions.

• Innovative projects: I am excited about the opportunity to work on cutting-edge projects that push the boundaries of technology.

• Collaborative work environment: I value teamwork and believe that the best ...read more
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Q2. What is your current CTC?
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Q1. Tell me about previous Projects ?
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Q2. What is redux & it's usage ?
Ans. 
Redux is a predictable state container for JavaScript apps.
• Redux is commonly used with React to manage the state of an application.

• It helps in maintaining a single source of truth for the state.

• Actions are dispatched to update the state in a predictable way.

• Reducers are used to specify how the state changes in response to actions.

• Selectors can be used to extract specific pieces of state from the store.

• Example: Redux is...read more
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Q1. OOPs related questions.
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Q2. Basic .net concept questions.
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Q3. SQL related questions.
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Q1. Oops, design pattern, middleware, c# concepts,
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Q1. Sql, solid principles
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