Mettl Sdet Engineer Interview Questions and Answers

Q1. Explain different waits in selenium
Ans. 
Different waits in Selenium include implicit wait, explicit wait, and fluent wait.
• Implicit wait: Waits for a certain amount of time before throwing a NoSuchElementException.

• Explicit wait: Waits for a certain condition to occur before proceeding further in the code.

• Fluent wait: Waits for a condition to be true with a specified frequency of checking.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS)
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Q2. What are SQL joins explain them
Ans. 
SQL joins are used to combine rows from two or more tables based on a related column between them.
• SQL joins are used to retrieve data from multiple tables based on a related column.

• Types of SQL joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right table.

• RIGH...read more
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It was easy interview

Q1. LinkedIn list, reverse list
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Q2. Array pr question , duplicate elements
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Their were mcq after which 2 coding questioms

Q1. About your projects Asked one question on array simple one Then oops dbms was prime focus
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All questions were based on class 10th mathematics.

Array and string related problem

Q1. Array,String,Linked list problem
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Q2. Question based on previous project work
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Q1. Tell us about Junit
Ans. 
JUnit is a popular open-source testing framework for Java applications.
• JUnit is used for writing and running repeatable automated tests in Java.

• It provides annotations like @Test to define test methods.

• JUnit assertions are used to verify expected results in tests.

• JUnit can be integrated with build tools like Maven or Gradle for continuous integration.

• JUnit 5 introduced new features like parameterized tests and nested t
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20 mins based on aptitude

90 min based on DSA

Logical / Quants / Reasoning

Fibonacci series / Looping/ DSA

2 QUESTIONS CODING QUESTIONS FOR SOLVING

REASIONING ,LOGICAL , VERBAL ,NON VERBAL ,ENGLISH , COMMUNICATION