Troika Tech Services Interview Questions and Answers

Q1. Question Related to Applied job position
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Q1. Question Related to End to End Campaign Management
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Q1. Tell me about your projects
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Q2. Tell me yourself
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Q1. What are SQL Joins?
Ans. 
SQL Joins are used to combine rows from two or more tables based on a related column between them.
• SQL Joins are used to retrieve data from multiple tables based on a related column between them.

• Common types of SQL Joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;
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Q2. Different functions in Python numpy
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Python numpy provides various functions for numerical operations on arrays.
• numpy.sum() - calculates the sum of array elements

• numpy.mean() - calculates the mean of array elements

• numpy.max() - returns the maximum value in an array

• numpy.min() - returns the minimum value in an array

• numpy.std() - calculates the standard deviation of array elements
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Q1. What are joins and how do you use it?
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Joins are used in databases to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column between them

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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Q2. Processing speed of different scriting languages?
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Processing speed of scripting languages varies based on factors like code complexity and optimization.
• Processing speed can vary based on the specific task being performed.

• Compiled languages like C++ tend to be faster than interpreted languages like Python.

• Optimizing code can improve processing speed.

• JavaScript can be faster than Python for certain tasks.

• Consider using libraries or frameworks optimized for performance.
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Q1. Basic knowledge of Digital Marketing
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Q2. Formulae in digital Marketing
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Formulae in digital marketing refer to mathematical equations used to analyze and optimize marketing strategies.
• Formulae help calculate key performance indicators (KPIs) such as ROI, CTR, and conversion rates.

• Examples of formulae include ROI = (Revenue - Cost) / Cost, CTR = (Clicks / Impressions) * 100%, and Conversion Rate = (Conversions / Clicks) * 100%.
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Q1. Self introduction
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Q2. When will you join
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I will be able to join within two weeks of receiving an offer.
• I need to give my current employer two weeks notice before leaving.

• I may need to finalize any pending projects before starting a new role.

• I am excited about the opportunity and look forward to joining the team.
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Q1. What is cm360
Ans. 
CM360 is a comprehensive marketing platform for managing customer data and optimizing campaigns across channels.
• CM360 stands for Campaign Manager 360, part of Google Marketing Platform.

• It allows users to track and manage digital advertising campaigns.

• Features include ad serving, targeting, and reporting tools.

• Integrates with Google Analytics for enhanced data insights.

• Supports cross-channel measurement, helping markete
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Q2. What is dsp
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DSP stands for Digital Signal Processing, a technique used to manipulate signals for various applications.
• DSP is used in audio processing, such as noise reduction and equalization.

• In telecommunications, DSP helps in encoding and decoding signals.

• Image processing applications, like filtering and compression, utilize DSP.

• DSP algorithms are crucial in radar and sonar systems for target detection.
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Q1. What are synthetic Events?
Ans. 
Synthetic Events are events that are created by the browser to mimic real user events.
• Synthetic Events are used in React to handle events in a consistent manner across different browsers.

• They are created by React to wrap native browser events and provide additional functionality.

• Examples include onClick, onChange, and onSubmit events in React.
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Q2. What is event bubbling?
Ans. 
Event bubbling is the process where an event triggered on a child element is propagated up through its parent elements.
• Event bubbling allows a single event handler to be attached to a parent element, which will be triggered for all its children.

• When an event occurs on a child element, it first runs the event handlers on the child, then on its parent, and so on up the DOM tree.

• Event bubbling can be stopped using event.s
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