Machint Solutions Senior QA Lead Interview Questions and Answers

Q1. What is stale exception
Ans. 
A stale exception occurs when a test script tries to interact with an element that is no longer available or has changed.
• Occurs when an element referenced in a test script is no longer present on the webpage

• Commonly seen in automated testing when the DOM structure changes dynamically

• Can be resolved by updating the test script to handle the new element structure

• May also occur if the element's properties have changed, su
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Q2. It is an exception showing when then web element we selected for use is not currently visible . May be due to some overlay
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Q1. 1. What are API estimation technique ? 2. Exception writing in the selenium 3.Read data from excel program 4. Http status code
Ans. 
API estimation techniques involve breaking down the API testing tasks into smaller components and estimating the effort required for each.
• Break down API testing tasks into smaller components

• Estimate effort required for each component

• Consider factors like complexity, dependencies, and resources

• Use techniques like expert judgment, historical data, and analogy-based estimation

• Example: Function Point Analysis, Three-Point
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Q1. Testng,maven,parallel execution
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Q1. Experience, and salaray negotiation
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Q1. Generic Regulatory related
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Q2. Medical devices class, medical regulatory and medical devices standards
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Q1. Verification process
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Q2. Regulatory affairs, Risk management
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Q1. Technical questions on Mainframes and TOSCA
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Q1. Client round with technical questions on mainframes and tosca
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Q1. Till date they have not enrolled me even after confirming and doing my documentation
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Q1. Documentation round which is still going on and its been 2 months
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Q1. Java program to split alpha-numeric values without using the split method
Ans. 
Split alpha-numeric values in Java without using split method
• Iterate through each character in the input string

• Check if the character is a digit or a letter using Character.isDigit() and Character.isLetter() methods

• Create separate strings for digits and letters and store them in an array
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Q2. SQL query to add a new column to a table and the column value should have a default value and never be null
Ans. 
Use ALTER TABLE statement to add a new column with a default value and set it to NOT NULL
• Use ALTER TABLE table_name ADD column_name data_type DEFAULT default_value NOT NULL;

• Example: ALTER TABLE employees ADD hire_date DATE DEFAULT '2022-01-01' NOT NULL;
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Q1. What are different types of waits in selenium? Write code and explain its uses.
Ans. 
Types of 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 be met before proceeding further in the code.

• Fluent Wait: Waits for a condition to be met with a defined polling frequency.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
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Q2. What is the different between findElement and findElements ? What exceptions will both throw in case of element not found .
Ans. 
findElement is used to find a single element on a web page, while findElements is used to find multiple elements.
• findElement returns a single WebElement, while findElements returns a list of WebElements.

• findElement will throw NoSuchElementException if the element is not found, while findElements will return an empty list if no elements are found.

• Example: WebElement element = driver.findElement(By.id("exampleId")); List...read more
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Hackerank platform with multiple questions.

Q1. Oops, Java, Java collection, String
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