eClinicalWorks Softwaretest Engineer Interview Questions and Answers

Q1. What is room database
Ans. 
Room Database is an abstraction layer over SQLite for Android, simplifying database management and operations.
• Room provides an easy way to manage SQLite databases in Android applications.

• It uses annotations to define database entities, such as @Entity for tables.

• Room supports compile-time verification of SQL queries, reducing runtime errors.

• It integrates seamlessly with LiveData and ViewModel for reactive programming.

• E...read more
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Q2. Develop an app
Ans. 
Develop a user-friendly app for managing personal finances and budgeting effectively.
• Define the app's purpose: Track expenses, set budgets, and analyze spending habits.

• Choose a platform: Decide between iOS, Android, or cross-platform development.

• Design an intuitive UI: Use wireframes to create a simple and engaging user interface.

• Implement core features: Include expense tracking, budget setting, and financial reports.

• I...read more
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Q1. What is Regression Testing?
Ans. 
Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.
• Performed after code changes to ensure that existing features still work correctly

• Helps in identifying and fixing any defects introduced by new code changes

• Automated tools like Selenium can be used for regression testing

• Examples: Testing a login feature after adding a ...read more
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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
Ans. 
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. Sql. Questions group by having and joins
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Q2. Datawarehousing and etl concepts
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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<String> names = new ArrayList<>(); Lin...read more
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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...read more
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Q1. Asked few Python and AWS related questions.
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Q1. About oops, constructor,
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Q2. Spring boot, hibernate questions
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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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