Adroitent Senior QA Engineer Interview Questions and Answers

Q1. Given a String contains only 0s, 1s and 2s, count the number of sub strings that have equal number of 0s, 1s, and 2s. Input : str = "0102010" output : 2. Very Hard question is being asked in interview for...read more
Ans. 
Count the number of substrings with equal number of 0s, 1s, and 2s in a given string.
• Iterate through the string and maintain counts of 0s, 1s, and 2s encountered so far.

• Keep track of the counts in a hashmap and increment the count of substrings whenever counts of 0s, 1s, and 2s are equal.

• Return the total count of substrings at the end.
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Q2. Group of anagrams together. input : ["eat", "tea", "tan", "ate", "nat", "bat"] output : [["eat" ,"tea", "ate"],["tan", "nat"],["bat"]] This is another hard level question is asked in interview for the QA p...read more
Ans. 
Group anagrams together in an array of strings.
• Create a hashmap to store sorted strings as keys and corresponding anagrams as values.

• Iterate through the input array, sort each string, and add it to the hashmap.

• Return the values of the hashmap as the grouped anagrams.
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Q1. If 2 threads are given and one burns in 30 minutes, how you can count 45 minutes
Ans. Burn 1 thread at one end another at both ends
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Q2. OOPS concepts explain in practical manner
Ans. 
OOPS concepts are fundamental to software engineering. They help in creating modular, reusable, and maintainable code.
• Encapsulation: Hiding implementation details and exposing only necessary information.

• Inheritance: Reusing code and creating a hierarchy of classes.

• Polymorphism: Ability of objects to take on multiple forms.

• Abstraction: Focusing on essential features and ignoring implementation details.

• Example: A car is ...read more
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Q3. Selenium practical based questions
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Q1. Reason behind leaving current company
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Q2. Financial growth, technical growth
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Q1. Explain your day to day Activities
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Q2. More into role specific question how to run parallels execution
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Q1. Situation questions
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Q1. Print missing number in given array
Ans. 
Find and print the missing number in a given array of strings.
• Convert the array of strings to an array of integers for easier manipulation.

• Iterate through the array to find the missing number by comparing consecutive elements.

• Print the missing number once found.
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Q2. Print string in reverse
Ans. 
Reverse a string in an array of strings
• Iterate through each string in the array

• Use a loop to reverse each string character by character

• Store the reversed strings in a new array
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Q1. How do you manage differences in team
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Q2. How do you test faulty ATM
Ans. 
To test a faulty ATM, simulate various scenarios like card reader failure, cash dispenser malfunction, network connectivity issues, etc.
• Simulate card reader failure by inserting a damaged card or a card with a magnetic strip issue.

• Test cash dispenser malfunction by requesting cash withdrawal and observing if the correct amount is dispensed.

• Check for network connectivity issues by trying to access online banking service...read more
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Q1. NDA - can't be shared
Ans. 
The question pertains to a non-disclosure agreement (NDA) and cannot be shared publicly.
• Explain that the question is related to a confidential agreement that prohibits sharing certain information.

• Mention the importance of respecting NDAs in professional settings.

• Provide examples of how NDAs are commonly used in the industry.

• Discuss the consequences of violating an NDA.
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Q1. NDA- can't be shared
Ans. 
The candidate was asked a question related to NDA which cannot be shared.
• Explain the importance of NDA in protecting confidential information

• Discuss the consequences of violating an NDA

• Provide examples of how you have handled sensitive information under NDA in previous roles
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Q2. NDA - can't be shared
Ans. 
The question pertains to a non-disclosure agreement (NDA) and cannot be shared.
• Explain the importance of NDAs in protecting sensitive information

• Discuss the consequences of violating an NDA

• Provide examples of how NDAs are commonly used in the tech industry
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Q1. NDA - can't be shared
Ans. 
The question pertains to a non-disclosure agreement (NDA) which cannot be shared.
• Explain the importance of NDAs in protecting sensitive information

• Discuss the consequences of violating an NDA

• Provide examples of how NDAs are commonly used in the tech industry
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General topics like Artificial Intelligence positive or negative impacts

Q1. Everything from resume
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Q1. General questions
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Q1. Write a program to remove all the space from the sentence .
Ans. 
Program to remove all spaces from a sentence
• Iterate through each character in the sentence

• If the character is not a space, add it to a new string

• Return the new string without spaces
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Q2. Java oops questions
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Q1. What is the STLC, bug severity priority, waits in selenium with syntax, Java oops question with example,
Ans. 
STLC, bug severity priority, waits in Selenium, Java OOPs
• STLC stands for Software Testing Life Cycle and includes phases like requirement analysis, test planning, test design, test execution, and test closure

• Bug severity is the impact of a bug on the system, while bug priority is the order in which bugs should be fixed

• Waits in Selenium are used to make the test script wait for a certain condition to be met before proce...read more
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