EXL Service Interview Questions, Process, and Tips

Q1. Guesstimate- how many seats are there in a plane and train
Ans. 
The number of seats in a plane and train can vary depending on the size and type of the aircraft or train.
• Planes can have anywhere from 20 seats in a small private jet to over 600 seats in a large commercial airliner like the Airbus A380.

• Trains can have a few dozen seats in a small commuter train to hundreds of seats in a high-speed train like the Shinkansen in Japan.

• The number of seats in a plane or train also depends...read more
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Q2. Tell me the difference between r square and adjusted r square
Ans. 
R square measures the proportion of variance explained by the independent variables, while adjusted R square penalizes for adding unnecessary variables.
• R square increases as more variables are added, even if they are not significant

• Adjusted R square increases only if the added variable improves the model more than would be expected by chance

• Adjusted R square is always lower than R square

• Adjusted R square is a better me...read more
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Questions pertaining to competitive exams, encompassing letter writing, email writing, and paragraph writing, along with a 25 words per minute typing test.

Q1. What is Sql?, and performance tuneing
Ans. 
SQL is a domain-specific language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• It is used to communicate with databases to perform tasks such as querying data, updating data, and creating databases

• Performance tuning in SQL involves optimizing queries, indexes, and database design to improve speed and efficiency

• Examples of performance tuning techniques include using ind...read more
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Q2. About power bi dax filter and dashboard
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Q1. About your technical skills
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Q2. About your previous work profile
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Advanced Sas question

Q1. SAS MACROS, FIRST.ID AND LAST.ID, MERGE, SQL,PROCS, PROC UNIVARIATE
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Q2. Third highest salary insql
Ans. 
To find the third highest salary in SQL, you can use the 'SELECT TOP 1' statement with 'ORDER BY salary DESC' twice.
• Use the 'SELECT TOP 1' statement with 'ORDER BY salary DESC' to find the highest salary.

• Use the 'SELECT TOP 1' statement with 'ORDER BY salary DESC' and 'WHERE salary < (SELECT TOP 1 salary FROM table)' to find the second highest salary.

• Use the 'SELECT TOP 1' statement with 'ORDER BY salary DESC' and 'WHE
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Q3. Delete duplicate in sql
Ans. 
Use the DISTINCT keyword in SQL to delete duplicates from a table.
• Use the SELECT DISTINCT statement to retrieve unique rows from a table.

• You can also use the GROUP BY clause with aggregate functions like COUNT() to remove duplicates.

• Consider using the ROW_NUMBER() function to assign a unique number to each row and then filter out duplicates based on this number.
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Q1. Marcos, procs in SAS
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Q1. Salary expectation
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