Mercer Test Analyst Interview Questions and Answers

Q1. Write a program to find character occurances in "Hello World"
Ans. 
Program to find character occurances in 'Hello World'
• Create a map to store character occurrences

• Iterate through each character in the string and update the map

• Print the character occurrences from the map
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Q2. What is multithreading
Ans. 
Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for better performance and resource utilization.
• Multithreading allows multiple threads to run concurrently within the same process.

• Each thread has its own stack and shares the same memory space.

• Multithreading can improve performance by utilizing multiple CPU cores efficiently.

• Examples of multithreading include running multiple tas...read more
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Q3. What are the annotations used in TestNG
Ans. 
TestNG annotations are used to control the flow of test methods and provide additional information about the test.
• Annotations like @Test, @BeforeSuite, @AfterSuite are used to define test methods and setup/teardown methods

• Annotations like @BeforeTest, @AfterTest are used to run setup/teardown methods before/after a test

• Annotations like @BeforeClass, @AfterClass are used to run setup/teardown methods before/after a test...read more
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Q1. Project and techstack related dscussion and questions.
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Q2. Remove duplicates and print the string using java. To be written on paper
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Q3. Character count in string. To be written on paper
Ans. 
Count the number of characters in a given string.
• Iterate through each character in the string and increment a counter for each character.

• Return the final count of characters in the string.
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Q4. General Selenium, TestNG, Cucumber BDD questions.
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Q5. API Testing Questions like status codes, parameters we pass in postman.
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Q6. Write Basic RestAssured code on paper.
Ans. 
Basic RestAssured code for API testing
• Import necessary RestAssured libraries

• Set base URI for the API

• Send a GET request to the API endpoint

• Validate response status code and body
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Q7. Switch values in two variables without third variable.
Ans. 
Use bitwise XOR operation to switch values in two variables without a third variable.
• Use bitwise XOR operation to switch values in two variables without a third variable.

• Example: a = 5, b = 7. After switching, a = 7, b = 5.

• a = a XOR b

• b = a XOR b

• a = a XOR b
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Q1. Why you are in Qa role
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Q1. Technical related questions
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Mcq test which was easy to crsck

Automation coding in java basic level questions

Regarding Journal knowledge about all the Subjects and Business prospective and And how is the IQ is is there in that person..how smart enough..etc

Q1. About our salary Disscustion and shift timings everything
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Mcq questions from testing field

Q1. Manual testing questions
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Q2. Basic automation questions
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Q1. Asking questions regarding your Cv
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Q2. Asking questions regarding your Experience
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Q3. Questions regarding your skills
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Q1. Salary discussion
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Q1. Asked on java related to fundamentals
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