WebNinjaz Technologies Interview Questions and Answers

Q1. About profession
Add your answer
Q2. About qualification
Add your answer

Q1. About yourself
Add your answer
Q2. Salary dissection
Add your answer

Q1. About digital marketing
Add your answer

Q1. They asked me about a challenging project I had worked on.
Add your answer
Q2. They also asked how I stay updated with the latest technologies.
Add your answer

Q1. Introducing your self and project
Add your answer
Q2. Severity and priority
Add your answer
Q3. Smoke and sanity testing
Add your answer
Q4. Scenario base question if find bug before release
Add your answer

Q1. What is the default index type
Ans. 
B-tree index is the default index type in Oracle database.
• Default index type in Oracle is B-tree index

• B-tree index is suitable for range queries and equality searches

• Other index types in Oracle include bitmap index and function-based index
Answered by AI
Add your answer
Q2. What is the causes of query slowness
Ans. 
Causes of query slowness can include inefficient queries, lack of indexes, outdated statistics, hardware limitations, and network latency.
• Inefficient queries - poorly written queries that do not utilize indexes or join tables unnecessarily

• Lack of indexes - missing indexes on columns frequently used in queries

• Outdated statistics - outdated or inaccurate statistics can lead to poor query execution plans

• Hardware limitatio...read more
Answered by AI
Add your answer
Q3. How to resolve query slowness
Ans. 
To resolve query slowness, analyze query execution plan, optimize indexes, update statistics, consider partitioning.
• Analyze query execution plan to identify bottlenecks

• Optimize indexes to improve query performance

• Update statistics to ensure the query optimizer has accurate information

• Consider partitioning large tables to improve query performance
Answered by AI
Add your answer

Coding Test consists of 3 Problem Question (2 Logical questions and 1 SQL Query ) and Around 20 MCQS
Platform - CoderByte

30 Aptitude Question
3 Mail Writing Question

Q1. Explain 1st Problem Solved in Coding Test. Optimize it.
Add your answer
Q2. Explain 2nd Problem Solved in Coding Test. I failed 1 test case in 1st round which was told to solve again.
Add your answer
Q3. Explain 3rd Question based on SQL Query.
Add your answer
Q4. Write a code to Reverse Digits.
View 1 more answer
Q5. A problem question for solving a SQL Query.
Add your answer

Q1. Communication evaluation
Add your answer

Q1. Discussion on previously handled projects
Add your answer

Q1. Introduction yourself
Ans. 
I am a dedicated PL/SQL developer with 5 years of experience in designing and implementing database solutions.
• Experienced in writing complex PL/SQL queries and stored procedures

• Proficient in performance tuning and optimization of SQL queries

• Skilled in database design and normalization principles

• Familiar with Oracle database technologies such as triggers and packages
Answered by AI
Add your answer
Q2. What is join and its types
Ans. 
Join is used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL 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 table

• FULL JOIN r...read more
Answered by AI
Add your answer

70 Technical and Aptitude mcqs to solve in 50 minutes

Q1. What is overloading and overriding?
Ans. 
Overloading is having multiple methods with the same name but different parameters. Overriding is implementing a method in a subclass that is already defined in the parent class.
• Overloading allows a class to have multiple methods with the same name but different parameters.

• Overriding occurs when a subclass provides a specific implementation of a method that is already provided by its parent class.

• Overloading is resolve...read more
Answered by AI
Add your answer
Q2. What is difference between Primary and unique key in dbms?
Ans. 
Primary key uniquely identifies a record in a table, while unique key ensures all values in a column are distinct.
• Primary key does not allow NULL values, while unique key allows one NULL value.

• A table can have only one primary key, but multiple unique keys.

• Primary key is a combination of unique and not null constraints.

• Primary key is used to establish relationships between tables, while unique key is used to enforce un
Answered by AI
Add your answer