Avalara Technologies Softwaretest Engineer Interview Questions and Answers

Q1. What is the importance of manual testing when compared to automation testing
Ans. 
Manual testing is important for exploratory testing, usability testing, and ad-hoc testing.
• Manual testing allows for exploratory testing where testers can explore the application and identify unexpected issues.

• Usability testing, which involves real users interacting with the software, is best done manually to capture user experience.

• Ad-hoc testing, where testers randomly test the application without predefined test cas...read more
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Q2. Real life scenario on web application testing
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Testing a web application for an online shopping platform
• Testing the functionality of adding items to the cart and checking out

• Testing the payment gateway integration for secure transactions

• Testing the search functionality to ensure accurate results are displayed

• Testing the responsiveness of the website on different devices and browsers
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Q1. About oops, constructor,
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Q2. Spring boot, hibernate questions
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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
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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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They have asked bunch of question from java, which i have told o am not aware about

Q1. What is Binary trees,
Ans. 
Binary trees are hierarchical data structures composed of nodes, where each node has at most two children.
• Consists of nodes with at most two children - left and right

• Each node can have zero, one, or two children

• Used in data structures like binary search trees and binary heaps
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Q2. What are expection handling in pyhton
Ans. 
Exception handling in Python is a way to handle errors that occur during the execution of a program.
• Use try-except blocks to catch and handle exceptions

• Different types of exceptions can be handled separately

• Use finally block to execute code regardless of whether an exception occurred or not
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Q3. Write a SQL quesries
Ans. 
SQL query to retrieve employee names and their salaries from a table
• Use SELECT statement to retrieve data

• Specify the columns you want to retrieve (employee names and salaries)

• Specify the table name from which you want to retrieve data
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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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Q1. Write a program to reverse the string
Ans. 
Program to reverse a string using array of characters
• Create an array of characters from the input string

• Iterate through the array in reverse order and append each character to a new string

• Return the reversed string
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Logically and mathematical

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