Larsen & Toubro Limited DOT NET Developer Interview Questions and Answers

Q1. Telle about yourself
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I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development technologies

• Strong problem-solving skills

• Familiar with Agile methodologies

• Worked on projects involving database management systems

• Continuous learner and always looking to improve
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Q2. Deep knowledge in node js
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Q1. Javascript basic questions
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Q2. Javascript basic questions
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Basic level of Q asked based on math ,english and programming

Easy to medium level 7 Q asked and minimum 4 is compulsory for crack next round

Q1. It was like personal interview asked about familiy background and all
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IT WAS BASIC AND EASY TO SOLVE

Q1. OOPS CONCEPT OF JAVA
Ans. 
OOPS concepts in Java refer to the principles of Object-Oriented Programming such as inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class B extends class A.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

• Polymorphism...read more
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Q2. JAVA SPRING BOOT
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Q1. Give some scenario in sql server about joins
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SQL Server joins are used to combine rows from two or more tables based on a related column between them.
• 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 Outer Join: Returns rows when there is a match in one of t...read more
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Q2. Sql constraints ,primary key,uniq key
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Q3. Union and unionall difference
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UNION combines the result sets of two or more SELECT statements, while UNION ALL does the same but includes duplicates.
• UNION removes duplicates from the result set, while UNION ALL includes all rows

• UNION is slower than UNION ALL as it has to perform an additional step to remove duplicates

• Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

• Example: SELECT column1 FROM table1 UNION ALL SELECT column1 FRO
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Q4. Validators in asp.net
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Validators in ASP.NET are used to validate user input on the client side before submitting the form to the server.
• Validators can be used to check for required fields, data formats, and custom validation rules.

• Common validators in ASP.NET include RequiredFieldValidator, RegularExpressionValidator, and CustomValidator.

• Validators can be used in combination with validation controls like ValidationSummary to display error m...read more
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Q5. Viewstate in asp.net
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Viewstate is a hidden field in ASP.NET used to store state information of the page and its controls.
• Viewstate is used to persist data between postbacks

• It can be disabled to reduce page size and improve performance

• Viewstate is encoded in Base64 format for security
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Q6. What are the selectors in css
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Selectors in CSS are patterns used to select the elements you want to style on a web page.
• Selectors can target elements based on their tag name, class, ID, attributes, and more.

• Examples include: element selector (p), class selector (.example), ID selector (#example), attribute selector ([type='text']), etc.
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Q1. Based on your CV
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Q1. Based on the project and skill they are in need
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Q1. General HR and code of conduct explained
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Q2. General discussions
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Q1. Data types in SQL. Write prime number logical code in SQL
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SQL data types and prime number logic code
• SQL data types include integer, float, varchar, etc.

• To write prime number logic in SQL, use a loop to check if a number is divisible by any number less than itself

• Example: DECLARE @num INT = 7; SELECT CASE WHEN COUNT(*) = 2 THEN 'Prime' ELSE 'Not Prime' END FROM (SELECT 1 AS num UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6) AS n
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Q1. Why do you want to join us?
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