20+ Interview Questions and Answers

Test cases for a Music Player

• Test playback of different file formats

• Test volume control functionality

• Test shuffle and repeat options

• Test playlist creation and management

• Test search functionality

• Test interruption handling (e.g. phone call)

• Test compatibility with different headphones/speakers

• Test battery consumption

• Test user interface and user experience

Test Engineer interview questions covering topics like verification, validation, hard assert, Selenium code, Excel file import, framework experience, and calendar selection code.

• Verification is the process of evaluating whether the product meets the specified requirements, while validation is the process of evaluating whether the right product is being built.

• Hard assert is a type of assertion in testing that stops the test execution immediately if the assertion fails.

• Example ...read more

Different transformations in big data testing include data mapping, data conversion, data aggregation, and data filtering.

• Data mapping involves mapping data from one format to another

• Data conversion involves converting data from one type to another

• Data aggregation involves combining data from multiple sources

• Data filtering involves selecting specific data based on certain criteria

• Examples include transforming data from CSV to JSON, converting data from string to integer, aggr...read more

Answer to a question on getting lines above and below a string in Test Engineering.

• Use file handling to read the file line by line

• Check if the current line contains the string

• If yes, store the previous and next lines in variables

• Repeat until end of file is reached

• Return the stored lines

Scenarios of Pen

• Positive Scenarios:

• - Pen is a versatile writing tool that can be used for various purposes such as writing, drawing, and signing documents.

• - Pen is portable and easy to carry around, making it a convenient tool for people who are always on the go.

• - Pen can be used to express creativity and artistry, allowing individuals to showcase their talents and skills.

• Negative Scenarios:

• - Pen can be easily lost or misplaced, causing inconvenience and frustration.

• - Pen can...read more

Increment load is a gradual increase in user traffic while full load is the maximum user traffic.

• Increment load gradually increases user traffic

• Full load is the maximum user traffic

• Increment load helps identify system capacity

• Full load tests system performance under stress

• Examples: Increment load - adding 100 users every 5 minutes, Full load - adding 1000 users at once

Array is a collection of elements of same data type stored in contiguous memory locations. Linked list is a collection of nodes where each node contains data and a reference to the next node.

• Array has fixed size, linked list can grow dynamically

• Insertion and deletion is faster in linked list than array

• Accessing elements in array is faster than linked list

• Arrays are better for small data sets, linked lists are better for large data sets

• Example of array: int arr[] = {1, 2, 3, 4...read more

I expect a challenging work environment with opportunities for growth and learning.

• Clear understanding of job responsibilities and expectations

• Opportunities for training and development

• Collaborative work culture

• Regular feedback and performance evaluations

• Competitive compensation and benefits package

The shell command to change the color of the text in the file is 'echo -e \033[COLORmTEXT\033[0m'

• The command uses the escape sequence '\033' to indicate the start of a color code

• Replace 'COLOR' with the desired color code (e.g. 31 for red)

• Replace 'TEXT' with the text to be colored

• Use '\033[0m' to reset the color back to default

• Example: 'echo -e \033[31mHello World\033[0m' will print 'Hello World' in red color'

Docker is a platform for developing, shipping, and running applications in containers. AWS offers services like ECS and EKS for managing containers.

• Docker is a tool designed to make it easier to create, deploy, and run applications by using containers.

• Containers allow a developer to package up an application with all parts it needs, such as libraries and other dependencies, and ship it all out as one package.

• AWS offers services like Amazon Elastic Container Service (ECS) and ...read more

Jira is a project management tool used for tracking issues and managing software development projects. CI/CD pipeline automates software delivery process.

• Jira is a popular project management tool that allows teams to track issues, manage tasks, and plan projects.

• To create a CI/CD pipeline, you can use tools like Jenkins, GitLab CI/CD, or CircleCI to automate the software delivery process.

• In Jira, you can integrate with CI/CD tools to track the progress of software development...read more

Code to open a new window in a web application

• Use window.open() method in JavaScript

• Specify the URL of the new window as a parameter

• Set the window features like size, position, and toolbar options

Stack is a LIFO data structure while Queue is a FIFO data structure.

• Stack follows Last In First Out (LIFO) principle, while Queue follows First In First Out (FIFO) principle.

• Stack operations are push and pop, while Queue operations are enqueue and dequeue.

• Stack is used in recursion, undo-redo functionality, and backtracking, while Queue is used in scheduling, buffering, and breadth-first search.

• Examples of Stack include browser history, call stack, and undo-redo stack, while ...read more

Priority is the order in which a defect should be fixed, while Severity is the impact of the defect on the system.

• Priority is based on business needs and urgency

• Severity is based on the impact on the system and users

• Priority can change based on project requirements

• Severity remains constant throughout the project

• Example: A spelling mistake in a button label may have low severity but high priority if it affects the usability of the system

An elevator is a vertical transportation device that moves people or goods between floors of a building.

• Elevators have a control panel with buttons for selecting the desired floor

• Elevators use a motor to move a cab or platform up and down a shaft

• Elevators have safety features such as emergency stop buttons and sensors to prevent doors from closing on people

• Elevators can be hydraulic or traction-based

• Elevators are commonly found in tall buildings, hotels, and shopping malls

OOPS concepts are the principles of Object-Oriented Programming that help in designing and implementing software systems.

• Abstraction: Hiding the implementation details and showing only the necessary information.

• Encapsulation: Binding data and functions together in a single unit called class.

• Inheritance: Acquiring properties and behavior of a parent class by a child class.

• Polymorphism: Ability of an object to take many forms or have multiple behaviors.

• Example: A car is an obje...read more

Types of deployment in AWS include Blue/Green deployment, Canary deployment, and Rolling deployment.

• Blue/Green deployment involves running two identical production environments, with one serving as the active environment and the other as a standby. Traffic is switched from the standby to the active environment once testing is complete.

• Canary deployment involves gradually rolling out a new version of an application to a small subset of users before making it available to the e...read more

Automate the login page by writing code

• Use a testing framework like Selenium for web automation

• Identify the elements on the login page such as username field, password field, and login button

• Write code to input valid credentials and click on the login button

• Verify successful login by checking for expected elements on the next page

Types of wait 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: Using implicit wait to wait for an element to be present before interacting with it.

I have worked on technologies such as Selenium, JUnit, TestNG, Jenkins, and Git.

• Selenium

• JUnit

• TestNG

• Jenkins

• Git

The framework used is a combination of Selenium WebDriver and TestNG for automated testing.

• Combines Selenium WebDriver for browser automation

• Utilizes TestNG for test case management and reporting

• Supports data-driven testing and parallel execution

• Allows for easy integration with CI/CD tools like Jenkins

Keywords are specific words or phrases that are used in programming languages to identify specific actions or functions.

• Keywords are reserved words in a programming language that have special meaning and cannot be used for variable names

• Examples of keywords in programming languages include 'if', 'else', 'while', 'for', 'int', 'void', etc.

Bug life cycle is the process of a bug from identification to resolution in software testing.

• Bug is identified by tester

• Bug is reported in bug tracking system

• Bug is assigned to developer

• Developer fixes the bug

• Bug is retested by tester

• If bug is fixed, it is closed. If not, it is reopened

STLC (Software Testing Life Cycle) is a process followed by testers to ensure high-quality software.

• STLC involves planning, designing, executing, and reporting on tests.

• It includes phases like requirement analysis, test planning, test design, test execution, and test closure.

• Each phase has specific activities and deliverables to ensure thorough testing.

• STLC helps in identifying defects early in the software development process.

• It ensures that the software meets quality standa...read more

Joins in SQL are used to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables based on a related column

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

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

A framework is a set of guidelines, libraries, and tools used to develop and maintain software applications.

• Provides structure and organization to code

• Promotes code reusability

• Facilitates automation and testing

• Examples: Selenium for web automation, JUnit for unit testing