e2open Interview Questions and Answers

Q1. Reverse a string
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Q2. Double liked list program
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Q3. File number of lines program
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Q4. Detect loop in a single linked list
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Q5. Palindrome or not program
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Q6. Sql queries like difference between delte and alter
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DELETE removes records from a table; ALTER modifies the structure of a table.
• DELETE: Removes rows from a table based on a condition. Example: DELETE FROM users WHERE age < 18;

• ALTER: Changes the structure of a table. Example: ALTER TABLE users ADD COLUMN email VARCHAR(255);

• DELETE can be rolled back if used within a transaction, while ALTER is usually permanent.

• DELETE affects data only, while ALTER affects the schema ...read more
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Q7. Map and unordered map difference
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Q8. What is a vector
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Q9. Multithreading concepts
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Q10. Html layout and bold paragraph how we declare
Ans. 
HTML uses tags to structure content; <p> for paragraphs and <strong> or <b> for bold text.
• <p>This is a paragraph.</p>

• <strong>This text is bold using strong.</strong>

• <b>This text is bold using b.</b>

• <p><strong>This is a bold paragraph.</strong></p>
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Q11. Java script declaration in html code
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Q12. Oops concepts all
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Q13. Overriding and overloading differences
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Q14. Virtual destructor means?
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Q15. Function pointer means
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Q16. Exception handling questions
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Q17. C++ 11 what has been introduced?
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C++11 introduced several features enhancing performance, usability, and concurrency, making the language more powerful and efficient.
• Auto keyword: Automatically deduces the type of a variable. Example: auto x = 5; // x is int

• Range-based for loops: Simplifies iteration over containers. Example: for (auto& item : container) { /*...*/ }

• Lambda expressions: Allows defining anonymous functions. Example: auto add = [](int...read more
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Q18. About project briefly
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Q19. Dll in c++?
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A DLL (Dynamic Link Library) in C++ is a file that contains code and data that can be used by multiple programs simultaneously.
• DLLs allow code reuse, reducing memory usage and disk space.

• They can be loaded at runtime, enabling modular applications.

• Example: Windows API functions are often provided as DLLs.

• Creating a DLL involves defining functions and exporting them using __declspec(dllexport).

• Example of exporting a fun...read more
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Q20. Application crash means who will you identify the bug
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Q21. Prepare well in c,c++,oops,data structures,memory allocation and multithreading and sql briefly
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Q1. Create table using another table
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To create a table using another table, use the CREATE TABLE AS SELECT statement.
• Use the CREATE TABLE AS SELECT statement to create a new table based on the structure and data of an existing table.

• Specify the new table name after CREATE TABLE and the existing table name after AS SELECT.

• You can also add conditions or filters to the SELECT statement to customize the data being copied.

• Example: CREATE TABLE new_table AS SEL...read more
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Q2. Check all the joins
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The question is asking to identify different types of joins in SQL.
• Inner Join: Returns rows when there is a 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 either table.

• Cross Join: Returns the Cartesian product of...read more
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Q3. Index and it's syntax
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An index is a database object that improves the speed of data retrieval operations on a table.
• Indexes can be created on one or more columns of a table.

• Syntax to create an index: CREATE INDEX index_name ON table_name(column_name);

• Indexes can be unique or non-unique.

• Indexes can be used to enforce uniqueness constraints.

• Indexes can improve query performance by reducing the number of rows that need to be scanned.
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Q4. Query to fetch highest salary
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Use SQL query with MAX function to fetch highest salary from the database.
• Use SELECT statement with MAX function to retrieve highest salary

• Specify the column name for salary in the SELECT statement

• Include the table name in the query if needed
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Q5. Delete duplicates in the table
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Use a DELETE statement with a subquery to remove duplicates in a table.
• Identify the columns that define duplicates

• Use a subquery to select the rows to be deleted

• Use the DELETE statement to remove the duplicates
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Basic java program,selenium, rest assured and cucumber

Q1. Reason for change
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Changing roles allows for professional growth, new challenges, and the opportunity to leverage skills in a different environment.
• Seeking new challenges: After several years in my current role, I feel ready to tackle more complex projects.

• Career advancement: This position offers a clear path for growth that aligns with my long-term career goals.

• Skill enhancement: I want to expand my expertise in quality assurance method...read more
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Q1. Expected ctc and doc
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Q1. Tell about yourself and details of project?
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I am a software engineer with experience in developing web applications using Java and Spring framework.
• Worked on a project to develop a web application for a retail company to manage their inventory and sales.

• Used Java and Spring framework to build the backend logic and RESTful APIs.

• Implemented front-end using HTML, CSS, and JavaScript with AngularJS framework.

• Collaborated with a team of developers and testers to deli...read more
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Q2. Sql questions,joins,unique?
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