Emtec Interview Questions and Answers

Q1. Python - find max from array without using built in function
Ans. 
Find max from array in Python without using built-in function.
• Iterate through the array and compare each element with a variable storing the current maximum value.

• If the element is greater than the current maximum, update the variable.

• Return the variable after iterating through the entire array.
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Q2. Spark cluster configuration
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Q3. Python split data interview question
Ans. 
Python's split() method divides a string into a list based on a specified delimiter.
• The split() method takes a delimiter as an argument. Example: 'a,b,c'.split(',') returns ['a', 'b', 'c'].

• If no delimiter is specified, it splits by whitespace. Example: 'Hello World'.split() returns ['Hello', 'World'].

• You can limit the number of splits by using the maxsplit parameter. Example: 'a,b,c,d'.split(',', 1) returns ['a', 'b,c,...read more
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Q1. About basic information
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Q1. About subject knowledge
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Q1. Overall communication and soft skills
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Q1. Scenario based questions on types of testing.
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Q1. Questions on certain domain knowledge
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Q1. Questions on Agile, domainand technical expertise.
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Q1. Flexibility and expections
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Q1. About Based on DevOps tools like Jenkins, Git, Azure DevOps, AWS CodePipelines
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Q2. Questions About Docker Architecture, commands
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Q3. Question about Kubernetes architecture, the deployment process
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Q4. Question regarding current role and responsibilities
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Q1. Talks about the company Questions asked related to current roles and responsibilities Package negotiation
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Questions related to React and nodejs

Q1. Given array: [1,3,4,[6,7,[8,5],9],2] Result array : [1,3,4,6,7,8,5,9,2]
Ans. 
The given array needs to be flattened to a single-level array.
• Iterate through the array elements

• If an element is an array, recursively flatten it

• If an element is not an array, add it to the result array
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Q2. Promise in javascript
Ans. 
Promise is a way to handle asynchronous operations in JavaScript.
• Promises represent a value that may not be available yet.

• They have three states: pending, fulfilled, and rejected.

• Promises can be chained using .then() and .catch() methods.

• They help avoid callback hell and make code more readable.

• Example: new Promise((resolve, reject) => {...})
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Q3. What are array methods in Javascript
Ans. 
Array methods in Javascript are built-in functions that can be used to manipulate arrays.
• Some common array methods are push(), pop(), shift(), unshift(), slice(), splice(), concat(), join(), indexOf(), and forEach().

• push() adds one or more elements to the end of an array.

• pop() removes the last element from an array.

• shift() removes the first element from an array.

• unshift() adds one or more elements to the beginning of a...read more
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Q1. Asked about myself and few javascript concepts.
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Q2. State and props from react
Ans. 
State and props are two important concepts in React for managing data and passing data between components.
• State is used to manage data within a component and can be updated using setState() method.

• Props are used to pass data from parent component to child component.

• State is mutable while props are immutable.

• Example:

• Example:
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CODING round contains of 3 questions of easy and medium level questions. I solved all of the 3 questions in this round . the duration was around 1 hour and most of the questions were on Arrays only

Q1. Given a string return the first repeating character in that string (DSA question easy level)
Ans. 
Find the first character that appears more than once in a given string.
• Use a hash set to track characters we've seen.

• Iterate through the string character by character.

• Return the first character that is already in the set.

• Example: For 'abca', the first repeating character is 'a'.

• Example: For 'abcdef', there are no repeating characters.
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Q2. Do you know SQL JOINS and types. Asked the output of some joins in SQL
Ans. 
SQL JOINS combine rows from two or more tables based on related columns, enabling complex queries and data retrieval.
• INNER JOIN: Returns records with matching values in both tables. Example: SELECT * FROM A INNER JOIN B ON A.id = B.id;

• LEFT JOIN: Returns all records from the left table and matched records from the right table. Example: SELECT * FROM A LEFT JOIN B ON A.id = B.id;

• RIGHT JOIN: Returns all records from the r...read more
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Q1. In depth analysis of College Final year project
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Q2. One DSA question related to Matrix, solving magic square
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Q1. C# standard QA,Azure
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