EXL Service Senior Software Developer Interview Questions and Answers

Q1. What are joins, given 2 tables, join them
Ans. 
Joins are used to combine data from two or more tables based on a related column between them.
• Use JOIN keyword followed by the name of the table to join

• Specify the columns to be selected using SELECT keyword

• Use ON keyword to specify the related column between tables

• Types of joins: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id
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Q2. All C# OOPS Concepts, Inheritance, Overriding and Overloading
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It was good and easy

Questions were medium

Q1. Why u choose this company?
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Q2. Brief introduction
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Q1. Explain your current project. An then related to project
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Q2. How to get 3rd last node of a linked list
Ans. 
To get the 3rd last node of a linked list, we can use two pointers approach.
• Start two pointers at the head of the linked list

• Move the first pointer to the 3rd node from the beginning

• Then move both pointers one node at a time until the first pointer reaches the end
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Q1. Uikit explaination
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Q2. Model classes with uikit
Ans. 
Model classes in UIKit are used to represent data in an application's user interface.
• Model classes in UIKit typically subclass NSObject and are used to store and manage data for views.

• They can include properties to represent different data fields, methods to manipulate the data, and sometimes protocols for delegation.

• For example, a model class for a user profile in a social media app might have properties like username...read more
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Project related questions

Q1. Basics of sql and some coding questions
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Q2. Data structures
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Q1. Putin arrays strings
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Q1. Self Introduction
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Q1. Nothing much it went well as usual they try go ask for negotiable salary
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Q2. What is the reason
Ans. 
The reason for what?
• Need more context to provide a specific reason

• Could be related to a specific action, decision, outcome, etc.

• Can you provide more details or clarify the question?
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Q3. What is the issue
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Q4. What is draw back
Ans. 
A drawback is a disadvantage or limitation of a particular situation or course of action.
• Drawbacks can hinder progress or success in a project or task.

• They can be caused by limitations in resources, technology, or skills.

• Examples include lack of funding, outdated software, or inadequate training.

• Identifying drawbacks early on can help mitigate their impact on a project.
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Q5. What is fast forward
Ans. 
Fast forward is a feature that allows users to skip ahead in a video or audio file to a specific point.
• Fast forward allows users to quickly move forward in a video or audio file.

• Users can skip scenes or sections they are not interested in by using the fast forward feature.

• Commonly seen in media players, streaming services, and DVRs.

• Example: Pressing the fast forward button on a remote control to skip ahead in a movie.
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Q1. Orientation skills
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Q2. Tell me about yourself
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