Trainee Test Engineer

20+ Trainee Test Engineer Interview Questions and Answers

Updated 3 Jul 2025
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Q. What is the difference between printf and scanf in C?

Ans.

printf is used to display output on the screen, while scanf is used to take input from the user in C programming.

  • printf is used to print formatted output to the screen.

  • scanf is used to read formatted input from the user.

  • printf uses format specifiers like %d, %f, %s to display different data types.

  • scanf uses format specifiers like %d, %f, %s to read different data types.

  • Example: printf("Hello, World!");

  • Example: scanf("%d", &num);

Asked in Pole To Win

3d ago

Q. On which platforms have you played these games?

Ans.

I have played games on PC, PlayStation, Xbox, and mobile platforms.

  • PC

  • PlayStation

  • Xbox

  • Mobile

Trainee Test Engineer Interview Questions and Answers for Freshers

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1d ago

Q. What is the schematic diagram of a bridge rectifier, and how does it operate?

Ans.

A bridge rectifier converts AC to DC using four diodes arranged in a bridge configuration.

  • Consists of four diodes arranged in a bridge configuration.

  • Allows both halves of the AC waveform to be used, improving efficiency.

  • Output is a pulsating DC voltage, which can be smoothed using capacitors.

  • Commonly used in power supplies for electronic devices.

  • Example: A bridge rectifier can be found in chargers for mobile phones.

Asked in Pole To Win

4d ago

Q. What genres of games are available, and which have you played?

Ans.

I have played a variety of game genres including action, adventure, RPG, puzzle, and simulation games.

  • Action games

  • Adventure games

  • RPG games

  • Puzzle games

  • Simulation games

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Asked in TCS

6d ago

Q. What is the difference between regression testing and retesting?

Ans.

Regression testing is testing the entire application after changes, while retesting is testing a specific bug fix.

  • Regression testing involves testing the entire application to ensure that new code changes have not affected existing functionality.

  • Retesting involves testing a specific bug fix to ensure that the issue has been resolved.

  • Regression testing is typically done after every code change, while retesting is done after a bug fix.

  • Regression testing helps ensure that new fe...read more

Asked in Izmo

2d ago

Q. Where did you complete your software testing course?

Ans.

I completed my software testing course at XYZ Institute.

  • I completed a comprehensive software testing course at XYZ Institute.

  • The course covered manual and automated testing techniques.

  • I gained hands-on experience with testing tools like Selenium and Jira.

  • The course also included modules on test planning, execution, and reporting.

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Asked in Pole To Win

1d ago

Q. Types of bugs, high priority low severity bugs and vice versa,

Ans.

Types of bugs include functional, performance, usability, and security bugs. High priority low severity bugs are those that have a significant impact on the system but are not critical.

  • Types of bugs: functional, performance, usability, security

  • High priority low severity bugs: issues that have a significant impact on the system but are not critical

  • Examples: UI alignment issue (high priority, low severity), spelling mistake in error message (low priority, high severity)

Asked in Vehere

1d ago

Q. What are some ways to avoid deadlock?

Ans.

Avoid deadlock by implementing proper resource allocation strategies and using techniques like timeouts and resource ordering.

  • Implement proper resource allocation strategies to prevent multiple processes from holding resources indefinitely.

  • Use timeouts to limit the amount of time a process can wait for a resource before releasing it.

  • Follow a strict resource ordering protocol to ensure processes request and release resources in a consistent order.

  • Avoid circular wait by ensurin...read more

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Q. What are the different types of software testing?

Ans.

Software testing ensures the quality and functionality of applications through various methodologies and techniques.

  • Unit Testing: Tests individual components for correctness (e.g., testing a function in isolation).

  • Integration Testing: Checks the interaction between integrated components (e.g., testing a database connection).

  • System Testing: Validates the complete and integrated software product (e.g., testing the entire application for user scenarios).

  • Acceptance Testing: Deter...read more

Asked in Sasken

2d ago

Q. What is the defect life cycle in software testing?

Ans.

The defect life cycle outlines the stages a defect goes through from identification to resolution in software testing.

  • 1. **Identification**: A defect is discovered during testing. Example: A user finds a bug in the login functionality.

  • 2. **Logging**: The defect is documented in a defect tracking tool with details. Example: A tester logs the defect in JIRA.

  • 3. **Assignment**: The defect is assigned to a developer for fixing. Example: The defect is assigned to the backend develo...read more

Asked in CloudScaleQA

5d ago

Q. What is the product development lifecycle?

Ans.

The product development lifecycle outlines the stages a product goes through from conception to market launch and beyond.

  • 1. Idea Generation: Brainstorming sessions to come up with new product ideas, e.g., a new mobile app.

  • 2. Feasibility Analysis: Assessing technical and market feasibility, e.g., conducting surveys to gauge interest.

  • 3. Design and Development: Creating prototypes and designs, e.g., developing wireframes for a software application.

  • 4. Testing: Conducting various ...read more

Asked in Pole To Win

2d ago

Q. What are bugs in games?

Ans.

Bugs in games refer to software defects or glitches that cause unexpected behavior or errors.

  • Bugs are software defects or glitches that can affect gameplay, graphics, audio, or other aspects of a game.

  • They can cause crashes, freezes, or performance issues.

  • Examples of bugs in games include characters getting stuck in walls, incorrect collision detection, or missing textures.

  • Bugs can also impact game balance, quests, or achievements.

  • Game developers rely on testing and bug fixin...read more

Q. Scrum master, roles and responsibilities of tester

Ans.

Scrum master facilitates agile development process. Tester ensures quality of product through testing.

  • Scrum master is responsible for organizing and leading daily stand-up meetings, sprint planning, and retrospectives

  • Tester is responsible for creating and executing test cases, reporting and tracking defects, and ensuring product meets quality standards

  • Scrum master and tester work closely together to ensure product is delivered on time and meets customer requirements

Asked in TCS

6d ago

Q. what are the different osi layers

Ans.

The OSI (Open Systems Interconnection) model consists of 7 layers that define the functions of a network communication system.

  • Physical Layer: Deals with physical connections and transmission of raw data.

  • Data Link Layer: Manages data frames and error detection/correction.

  • Network Layer: Handles routing and logical addressing.

  • Transport Layer: Ensures end-to-end communication and data flow control.

  • Session Layer: Establishes, maintains, and terminates connections.

  • Presentation Laye...read more

5d ago

Q. What can you tell me about PCB testing?

Ans.

PCB testing ensures the functionality and reliability of printed circuit boards through various evaluation methods.

  • Visual Inspection: Checking for physical defects like soldering issues or component misalignment.

  • Electrical Testing: Verifying circuit integrity using methods like In-Circuit Testing (ICT) or Functional Testing.

  • Thermal Testing: Assessing how PCBs perform under different temperature conditions to ensure reliability.

  • Environmental Testing: Simulating conditions like...read more

Q. What is the difference between current and voltage?

Ans.

Current (I) is the flow of electric charge, while voltage (V) is the potential difference that drives this flow.

  • Current is measured in Amperes (A), while voltage is measured in Volts (V).

  • Current represents the flow of electrons in a circuit, e.g., a battery powering a light bulb.

  • Voltage can be thought of as the pressure that pushes the current through a circuit, like water pressure in a pipe.

  • In a simple circuit, if voltage increases, current also increases if resistance remai...read more

Q. What is rf? What is jammer?

Ans.

RF stands for Radio Frequency. A jammer is a device that disrupts or blocks RF signals.

  • RF refers to the frequency range used in wireless communication systems.

  • RF signals are used in various applications such as mobile phones, Wi-Fi, Bluetooth, and satellite communication.

  • A jammer is designed to emit RF signals on the same frequency as the target device, causing interference and disruption.

  • Jamming devices can be used for illegal activities like blocking cell phone signals in r...read more

Asked in Infosys

1d ago

Q. What is a pointer in C?

Ans.

A pointer in C is a variable that stores the memory address of another variable.

  • Pointers are used to access and manipulate memory addresses directly.

  • They are declared using the * symbol, like int *ptr;

  • Pointers can be used to pass variables by reference to functions.

  • Example: int *ptr; int num = 10; ptr = # *ptr = 20; // num now equals 20

Q. What do you know about EV sales?

Ans.

EV sell refers to the process of selling electric vehicles to customers.

  • EV sell involves marketing and promoting electric vehicles to potential buyers.

  • It includes educating customers about the benefits of electric vehicles such as lower emissions and cost savings on fuel.

  • EV sell also involves providing after-sales support and services to customers.

  • Examples of companies involved in EV sell include Tesla, Nissan, and Chevrolet.

Asked in Amazon

2d ago

Q. What is regression testing?

Ans.

Regression testing is the process of retesting modified software to ensure that the existing functionalities are not affected.

  • Regression testing is performed after making changes to the software to ensure that the modifications have not introduced new bugs or issues.

  • It involves re-executing previously executed test cases to verify that the existing functionalities still work as expected.

  • Regression testing helps in identifying any unintended side effects of code changes and en...read more

Asked in TCS

6d ago

Q. What is C programming?

Ans.

C programming is a high-level programming language used for system programming, embedded systems, and creating software applications.

  • C programming is a procedural language with a rich set of built-in functions.

  • It is widely used for developing operating systems, compilers, and device drivers.

  • C programs are efficient and have a close relationship with the underlying hardware.

  • Example: Writing a simple 'Hello World' program in C.

Q. What are the advantages of using a jammer?

Ans.

No, jammer means disadvantages.

  • Jammer is a device that blocks or interferes with signals, causing disruption or interference.

  • It is often used to prevent communication or tracking, which can be a disadvantage in certain situations.

  • For example, a jammer can be used to disrupt the signal of a GPS device, making it difficult to track a vehicle or person.

  • In military operations, jammers can be used to disrupt enemy communication, but can also interfere with friendly communication.

  • O...read more

Asked in Accenture

1d ago

Q. Types of Testing

Ans.

Types of Testing

  • Functional Testing: Testing the functionality of the software

  • Performance Testing: Testing the performance and scalability of the software

  • Security Testing: Testing the security vulnerabilities of the software

  • Usability Testing: Testing the user-friendliness of the software

  • Regression Testing: Testing to ensure that changes or updates do not break existing functionality

  • Integration Testing: Testing the interaction between different components of the software

  • Accepta...read more

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