EXL Service Software Trainee Interview Questions and Answers

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. 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. What is a bloom filter in hbase ?
Ans. 
A bloom filter in HBase is a data structure used to test whether a given element is a member of a set.
• Bloom filters are used to reduce the number of disk reads in HBase by quickly determining if a row may exist in a table.

• They are implemented as a compact array of bits, with multiple hash functions used to map elements to bits.

• Bloom filters can produce false positives but not false negatives, making them useful for pre...read more
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Q2. Write a query to remove duplicate rows in pyspark based on primary key.
Ans. 
Use dropDuplicates() function in pyspark to remove duplicate rows based on primary key.
• Use dropDuplicates() function on the DataFrame with the primary key column specified.

• Specify the subset parameter in dropDuplicates() to specify the primary key column.

• Example: df.dropDuplicates(['primary_key_column'])
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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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Aptitude questions were pretty easy, most of them were time and distance questions

It was a dynamic programming question a pretty standard one