TEKsystems Interview Questions and Answers

Q1. Tell me about your self
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Q2. What are the technical skill
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Q1. How many years of experience in Python?
Ans. 
I have 5 years of experience in Python.
• 5 years of hands-on experience in Python programming

• Proficient in developing web applications, data analysis, and automation scripts using Python

• Familiar with popular Python libraries and frameworks such as Django, Flask, and NumPy
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Q2. What is the difference between List and Tuple?
Ans. 
List is mutable, Tuple is immutable in Python.
• List can be modified after creation, Tuple cannot be modified.

• List is defined using square brackets [], Tuple is defined using parentheses ().

• Example: list_example = [1, 2, 3], tuple_example = (1, 2, 3)
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Q3. What is lambda function?
Ans. 
A lambda function is a small anonymous function defined using the lambda keyword in Python.
• Lambda functions can take any number of arguments, but can only have one expression.

• They are commonly used as a way to create small, throwaway functions.

• Lambda functions are often used in conjunction with functions like map(), filter(), and reduce().
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Q4. What are the Data types used in your project?
Ans. 
The data types used in the project include integers, strings, floats, and booleans.
• Integers are used for storing whole numbers, such as IDs or quantities.

• Strings are used for storing text data, such as names or descriptions.

• Floats are used for storing decimal numbers, such as prices or measurements.

• Booleans are used for storing true/false values, such as status indicators.
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Q5. Write a code having square of a series which is divisible by 3 using lambda function ?
Ans. 
Code to find square of series divisible by 3 using lambda function.
• Create a list of numbers in the series

• Use filter() function with lambda function to filter numbers divisible by 3

• Use map() function with lambda function to find square of each number
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Easy questions can be solved simply

Nothing much have to speak about topic

Q1. Basics dsa stuff have to write code
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Q2. Basic oops questions which also can be answered easily
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Which of the following one is better, iOS or Android

List manipulation questions

Q1. Architecture of spark
Ans. 
Spark is a distributed computing framework that provides in-memory processing capabilities for big data analytics.
• Spark has a master-slave architecture with a central coordinator called the Driver and distributed workers called Executors.

• It uses Resilient Distributed Datasets (RDDs) for fault-tolerant distributed data processing.

• Spark supports various data sources like HDFS, Cassandra, HBase, and S3 for input and outpu...read more
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Q2. SQL code for situations
Ans. 
SQL code for handling various situations in data analysis
• Use CASE statements for conditional logic

• Use COALESCE function to handle NULL values

• Use GROUP BY and HAVING clauses for aggregating data

• Use subqueries for complex filtering or calculations
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Q1. Manager round- describe about self and where do you see yourself in 5 years
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