Tech Mahindra Verification & Validation Engineer Interview Questions and Answers

CAN is a protocol used for communication between electronic devices in vehicles.

• CAN stands for Controller Area Network.

• It is a serial communication protocol that allows multiple electronic control units (ECUs) to communicate with each other.

• CAN uses a two-wire bus system, consisting of a CAN High (CANH) and a CAN Low (CANL) wire.

• It employs a message-based communication scheme, where each message is identified by a uniq...read more

CAN V and CAN P are two types of messages used in Controller Area Network (CAN) communication protocol.

• CAN V stands for CAN Voltage and is used for transmitting data at a higher voltage level.

• CAN P stands for CAN Protocol and is used for transmitting data at a lower voltage level.

• CAN V is used for high-speed communication, while CAN P is used for low-speed communication.

• CAN V is used for critical data transmission, whi...read more

UDS stands for Unified Diagnostic Services, a protocol used in automotive electronics for communication between ECUs.

• UDS is used for diagnostic communication between ECUs in vehicles

• It is based on the ISO 14229 standard

• UDS allows for diagnostic services such as reading and clearing fault codes, accessing sensor data, and performing tests

• It uses a request-response mechanism, with the diagnostic tool sending a request an...read more

CSV stands for Computer System Validation. Automation testing is the use of software to execute tests.

• CSV is a process of ensuring that a computer-based system meets its intended requirements and is compliant with regulatory standards.

• Automation testing involves using software tools to run tests automatically, reducing the need for manual testing.

• CSV and automation testing are often used together to ensure that compute...read more

There are several categories of software, including system software, application software, programming software, and malware.

• System software

• Application software

• Programming software

• Malware

SDLC refers to the software development life cycle. There are various types of hardware such as input, output, storage, and processing devices.

• SDLC is a process followed by software development teams to design, develop, and test software.

• Hardware can be classified into four types: input devices (e.g. keyboard, mouse), output devices (e.g. monitor, printer), storage devices (e.g. hard disk, USB drive), and processing de...read more

Testing tools are software applications used to automate and manage the testing process.

• Automated testing tools like Selenium, Appium, and TestComplete

• Performance testing tools like JMeter and LoadRunner

• Bug tracking tools like JIRA and Bugzilla

• Code coverage tools like JaCoCo and Cobertura

• Continuous integration tools like Jenkins and Travis CI