Comcast India Engineering Center Softwaretest Engineer Interview Questions and Answers

Q1. What is difference between retesting and regression testing
Ans. 
Retesting is testing the same functionality again to ensure the defect is fixed, while regression testing is testing the whole application to ensure new changes do not affect existing functionality.
• Retesting focuses on verifying that a specific defect has been fixed.

• Regression testing focuses on ensuring that new changes do not impact existing functionality.

• Retesting is usually performed by the tester who found the def...read more
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Q2. What is difference between system testing and system integration testing
Ans. 
System testing focuses on testing the entire system as a whole, while system integration testing focuses on testing the interactions between integrated components.
• System testing ensures that the entire system meets the specified requirements and functions correctly.

• System integration testing focuses on testing the interfaces and interactions between integrated components to ensure they work together seamlessly.

• System t...read more
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Q1. What are qa deliverables
Ans. 
QA deliverables are the tangible work products produced by the QA team during the software testing process.
• Test plans

• Test cases

• Test scripts

• Defect reports

• Test summary reports
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Q2. What are pre requisites of api testing
Ans. 
Pre requisites of API testing include understanding of API documentation, knowledge of HTTP methods, familiarity with testing tools.
• Understanding of API documentation

• Knowledge of HTTP methods (GET, POST, PUT, DELETE)

• Familiarity with testing tools like Postman or SoapUI

• Ability to write test cases for API endpoints

• Understanding of status codes and response formats
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There were 3 dsa questions related to graph and trees

Q1. Focus on coding, Question: find the duplicate string from list of string and the count of it(how many times it is repeated) Prepare oops and collections concepts.
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Q2. Focus on method overriding
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Q3. Difference between arraylist and LinkedInlist
Ans. 
ArrayList is a resizable array implementation while LinkedList is a doubly linked list implementation.
• ArrayList uses dynamic arrays to store elements, allowing fast random access but slower insertion and deletion.

• LinkedList uses nodes with pointers to the next and previous elements, allowing fast insertion and deletion but slower random access.

• Example: ArrayList - List names = new ArrayList<>(); LinkedList - List citie
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Q4. Use of static keyword
Ans. 
The static keyword in programming is used to declare variables, methods, or classes that belong to the class itself rather than instances of the class.
• Static variables are shared among all instances of a class.

• Static methods can be called without creating an instance of the class.

• Static classes cannot be instantiated and are used for grouping related methods and variables.

• Example: public static int count = 0; // static
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Q1. Java program for prime no
Ans. 
Java program to check if a number is prime or not
• Create a function to check if a number is prime or not

• Iterate from 2 to n/2 and check if n is divisible by any number

• If n is divisible by any number, it is not prime

• If n is not divisible by any number, it is prime
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Q2. Dynamic web table element program
Ans. 
A dynamic web table element program involves identifying and interacting with elements in a table that change dynamically.
• Identify the table element using unique identifiers like class or id

• Use Selenium WebDriver to locate and interact with the table element

• Handle dynamic changes in the table by using dynamic XPath or CSS selectors

• Iterate through rows and columns to extract data or perform actions
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You will have 2 hours of assessement

Q1. Basic oops and sql questions and you will have puzzle
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Q1. Asked few Python and AWS related questions.
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