Jspiders Full Stack Software Developer Interview Questions and Answers

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
Answered by AI
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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;
Answered by AI
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Solve 500 Leetcode problems

Data structures and algorithms, oops, DBMS, os

Data structures and algorithms

Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Graduated with a degree in Computer Science

• Worked on various projects using Java and Python

• Familiar with web development technologies like HTML, CSS, and JavaScript
Answered by AI
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Q2. Questions about my family
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Same for all the roles completely based on aptitude question

They gather a group of members who are qualified for the round 2, Everyone should talk they mainly focus on how much of analysis skills you have

Q1. Why you are fit for the role
Ans. 
I have a strong background in software development with experience in various programming languages and technologies.
• Extensive experience in developing software applications using languages such as Java, Python, and C++

• Proficient in working with databases such as MySQL and MongoDB

• Familiarity with web development technologies like HTML, CSS, and JavaScript

• Strong problem-solving skills and ability to work well in a team ...read more
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Q2. Tell me about your self
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It was a average test

Q1. Tell us about yoursefl
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development

• Strong problem-solving skills

• Familiar with Agile methodologies

• Excellent communication skills

• Team player
Answered by AI
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Q2. What you think what makes a team fail?
Ans. 
Lack of communication, poor leadership, conflicting goals, and lack of trust can make a team fail.
• Lack of communication: When team members do not communicate effectively, tasks can be misunderstood or not completed on time.

• Poor leadership: A team without a strong leader to guide and motivate them can easily lose direction and focus.

• Conflicting goals: If team members have different priorities or objectives, it can lead ...read more
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General Aptitude, and Basic java questions

They asked about the advantages and disadvantages of corona

Q1. Java oops concepts
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Q1. Self intro for yourself
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