APT Research Private Limited Junior Data Analyst Interview Questions and Answers

Q1. About your profile and exeperiences . what is your goal?
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Q2. What is your goal and why do want join?
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Q1. What do you know about capital markets?
Ans. 
Capital markets refer to the financial markets where long-term securities such as stocks and bonds are traded.
• Capital markets are where companies and governments raise funds by issuing stocks and bonds

• Investors buy and sell securities in the capital markets

• Capital markets are regulated by government agencies such as the SEC in the US

• Examples of capital markets include the New York Stock Exchange and NASDAQ
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Q1. How you will work when you have targets?
Ans. 
I prioritize tasks and create a plan to achieve targets efficiently.
• I break down the target into smaller achievable goals

• I prioritize tasks based on their importance and urgency

• I create a plan with deadlines and milestones

• I regularly track progress and make adjustments if necessary
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There was basic GD topic

Q1. Google form was shared in which 15 questions were there and 3 were apti questions (work ,time ,speed) and others were from java programming and the time given was 2 hours.
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Q1. In this only you will be asked theoretical questions like DBMS, JAVA, Programming, Your Project for programming he will ask only logic and will not ask you to code.
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Q1. Count the number of words and their frequency
Ans. 
Count the number of words and their frequency
• Split the given text into words using whitespace as delimiter

• Create a dictionary to store the word frequency

• Iterate through each word and update the frequency in the dictionary

• Return the dictionary with word frequency
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Q2. Count frequency of characters.
Ans. 
Count the frequency of characters in a given string.
• Iterate through the string and use a hash map to store the count of each character.

• Initialize the count of each character to 0 and increment it as you encounter the character.

• Finally, iterate through the hash map to get the frequency of each character.
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Q3. Reversing the array
Ans. 
Reverses an array of strings
• Use a loop to iterate through half of the array

• Swap the elements at the current index with the corresponding element from the end of the array
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Q4. Implementing the comparator function for sorting
Ans. 
Implementing the comparator function for sorting an array of strings.
• Use the built-in sort() function in most programming languages.

• Define a custom comparator function that compares two strings.

• Return a negative value if the first string should come before the second, a positive value if it should come after, and 0 if they are equal.

• Example: ['apple', 'banana', 'cherry'] can be sorted in alphabetical order using the co
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Topic: Online vs Offline Education.

They gave us 8 coding problems and instructed us to solve 5 within a time limit of 1 hour and 30 minutes; all problems were from the easy and medium on LeetCode.

Q1. Data Structures and Algorithms (DSA), time complexity, and the explanation of code written during the coding round.
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Q2. Question from the Core java.
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Q1. In-depth question from DSA like implement linked-list and stack, questions from Tree and linear and binary search.
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Q2. Explanation of college projects and questions from resume.
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Q1. Simple HR questions.
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Share details of your previous job.
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Q4. Tell me about yourself.
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Q1. About Previous experiece
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Q1. What are my skills like computer skills and many more
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Aptitude test was the mixture of common aptitude questions along with sql, basic javascript and java language basic questions and couple of simple coding questions like febinachi series, palindrom pattern etc .

Q1. They started from basic of java and some frameworks like springboot and then moved to advance of these topics.
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Q2. Springboot annotations Opps concept run-time and compile time polimorphisam SQL quesries for Select and Joins
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Q1. Level 2 interview from the same topics along with abstraction and interface Constructor overriding is possible or not? dependency injection
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Q2. Ways to create object in java.
Ans. 
Objects in Java can be created using the 'new' keyword, constructors, and factory methods.
• Use the 'new' keyword followed by the class name to create an object

• Objects can also be created using constructors to initialize the object's state

• Factory methods can be used to create objects without exposing the instantiation logic
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