QSpiders Interview Questions, Process, and Tips

Information technology

Q1. Structure query language
Ans. Used to perform tasks such as update data on a database, or retrieve data from a database.EXPLAIN works with SELECT , DELETE , INSERT , REPLACE , and UPDATE.
Answered by Tamizh R
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Q2. What is a Primary Key?
Ans. 
A Primary Key is a unique identifier for each record in a database table.
• Uniquely identifies each record in a database table

• Must have a unique value for each record

• Cannot have NULL values

• Can be a single column or a combination of columns
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Q3. What is a Foreign Key?
Ans. 
A Foreign Key is a field in a database table that is used to establish a relationship with a primary key in another table.
• Used to enforce referential integrity between tables

• Helps maintain data consistency by ensuring that values in the foreign key column exist in the referenced table's primary key column

• Can be used to create one-to-many or many-to-many relationships between tables
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Q4. What is a Join? List its different types.?
Ans. 
A Join is used to combine rows from two or more tables based on a related column between them.
• Types of Joins: Inner Join, Left Join, Right Join, Full Outer Join, Cross Join

• 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 tabl...read more
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Q5. What is the SELECT statement
Ans. 
The SELECT statement is used in SQL to retrieve data from a database.
• Used to specify which columns to retrieve from a table

• Can include conditions to filter the results using WHERE clause

• Can be used with functions like COUNT, SUM, AVG, etc.

• Example: SELECT column1, column2 FROM table_name WHERE condition;
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That of my first round

Q1. First Introduction
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Q2. Where do you want to see yourself in 5 years?
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Q1. What is testing explain
Ans. 
Testing is the process of evaluating a system or application to identify defects or errors.
• Testing involves executing a system or application to find bugs or issues.

• It ensures that the software meets the specified requirements and works as expected.

• Types of testing include functional testing, performance testing, security testing, etc.

• Testing can be manual or automated, depending on the requirements and resources avail
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Q2. Explain web driver architecture
Ans. 
WebDriver architecture consists of client libraries, JSON wire protocol, browser drivers, and browsers.
• Client libraries provide bindings for different programming languages to interact with WebDriver

• JSON wire protocol is used for communication between client libraries and browser drivers

• Browser drivers control the browsers and execute commands sent by client libraries

• Browsers receive commands from browser drivers and p
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Q1. Basic questions
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Q2. Basic questions
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Q1. Basic questions
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Q2. Basic
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Q1. Basic questions
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Q2. Basic questions
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Basic aptitude questions

String duplicate ,Array number

Q1. Tell me about your self
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Q2. Why should I hire you
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