ZapCom Group Sdet Automation Test Engineer Interview Questions, Process, and Tips

Q1. What is an abstract class?
Ans. 
An abstract class is a class that cannot be instantiated and may contain abstract methods that must be implemented by its subclasses.
• Cannot be instantiated directly

• May contain abstract methods

• Used as a blueprint for other classes
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Q2. What is abstraction?
Ans. 
Abstraction is the process of hiding complex details and showing only the essential features of an object or system.
• Abstraction allows us to focus on what an object does, rather than how it does it

• It helps in simplifying complex systems by breaking them down into smaller, more manageable parts

• Examples of abstraction include using a car without needing to understand its internal combustion engine, or using a smartphone
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Q3. Best sorting algo?time complexity of it?
Ans. 
QuickSort is one of the best sorting algorithms with an average time complexity of O(n log n).
• QuickSort is a divide and conquer algorithm that works by selecting a 'pivot' element and partitioning the array around the pivot.

• It has an average time complexity of O(n log n) and a worst-case time complexity of O(n^2).

• Example: ['apple', 'banana', 'cherry', 'date', 'fig'] can be sorted using QuickSort.

• Example: ['3', '1', '4'...read more
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Q4. You have been provided a sorted list time complexity achieved after we apply bubble sorting
Ans. 
Bubble sorting has a time complexity of O(n^2) for a sorted list.
• Bubble sorting has a worst-case time complexity of O(n^2) for a sorted list.

• The time complexity does not change even if the list is already sorted.

• Example: If we have a sorted list of size n, bubble sorting will still take O(n^2) time.
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Q1. Have you ever been to a state other than jharkhand?
Ans. 
Yes, I have been to multiple states other than Jharkhand.
• I have traveled to states like Maharashtra, Karnataka, and Tamil Nadu for work and leisure.

• I have visited tourist destinations in states like Rajasthan, Kerala, and Himachal Pradesh.

• I have family in states like Uttar Pradesh, Bihar, and West Bengal, which I have visited multiple times.
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Q1. Lots of technical questions over automation, javascript overview questions, coding questions over string and array. (Not hard one)
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Q2. General manual testing like what is regression smoke sanity BVA.
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Q3. API testing question like path variable , response code ,put vs patch
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Q1. Second round will be tough, if your interviewer is karan vaid then you have to deep into javascript.
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Q2. He will ask deep questions on javascript on promise , async await , callbacks .
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Q3. Cookies, event loops . Mainly go through namaste js series in youtube. You will be able to answer his questions 80 percent.
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Coding interview, framework

De/algo leetcode medium level

Graph, DP, array, Stack

Q1. Implementation of OOPS, Project, C++, To write the SQL query, Puzzle, real life questions, string question
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Moderate level coding question

Q1. Ques on java appium framework ci / cd
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Basic neetcode questions
Selenium
Appium

Coding interview, framework