Wipro Software Testing Engineer Interview Questions and Answers

Q1. What Is Schema And Which schema you used in your project ?
Ans. 
Schema is a blueprint that defines the structure of a database. I used the relational schema in my project.
• Schema is a logical representation of the entire database.

• It defines the tables, fields, relationships, and constraints.

• Relational schema is the most commonly used schema in databases.

• It organizes data into tables with rows and columns.

• Example: Employee table with columns like ID, Name, Age, Salary.
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Q2. What Is The Difference Between SQL & ETL ?
Ans. 
SQL is a language used to manage relational databases, while ETL is a process used to extract, transform, and load data from various sources into a target database.
• SQL is used to manage data within a database, while ETL is used to move data between databases

• SQL is used to query and manipulate data, while ETL is used to transform and load data into a target database

• SQL is a language, while ETL is a process

• Examples of SQ...read more
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Q3. What is agile methodology ?
Ans. 
Agile methodology is an iterative approach to software development that emphasizes flexibility and customer satisfaction.
• Agile focuses on delivering working software in short iterations

• It values collaboration between team members and with customers

• It emphasizes adapting to change rather than following a rigid plan

• Examples of agile methodologies include Scrum, Kanban, and Extreme Programming (XP)
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Q4. What The Statement Of writing A Queries ?
Ans. 
Writing queries involves creating statements to retrieve data from a database.
• Identify the data you want to retrieve

• Choose the appropriate table(s) to query

• Use SQL syntax to construct the query

• Test the query to ensure it returns the desired results
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Q5. How You Upload A Data From Source To Target ?
Ans. 
Data can be uploaded from source to target using ETL tools or manual data entry.
• Extract data from source system

• Transform data to match target system requirements

• Load data into target system

• Use ETL tools like Informatica, Talend, or SSIS

• Manual data entry can be done through UI or APIs
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Q6. What Is Buffer, Where We Use ?
Ans. 
Buffer is a temporary storage area in memory used to hold data while it is being processed or transferred.
• Buffers are used in various applications such as network communication, file I/O, and image processing.

• They help to improve performance by reducing the number of read/write operations to the main memory.

• Examples of buffer include input/output buffer, circular buffer, and double buffer.

• Buffer overflow is a common vu...read more
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Q7. What are The Joins And Constraints ?
Ans. 
Joins and constraints are used in databases to link tables and enforce rules for data integrity.
• Joins are used to combine data from two or more tables based on a related column

• Constraints are rules that are applied to columns to ensure data integrity

• Types of constraints include primary key, foreign key, unique, and check constraints

• Joins can be inner, outer, left, or right depending on the data needed

• Examples of joins ...read more
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Q1. Share details of your previous job.
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Q2. What are your salary expectations?
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Q3. What are your strengths and weaknesses?
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Q4. Why should we hire you?
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Q5. Tell me about yourself.
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Reasoning and Coding.




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