APU Packaging QA QC Engineer Interview Questions and Answers

Spring Boot is a Java-based framework used for creating standalone, production-grade Spring-based applications.

• Spring Boot simplifies the process of creating Spring applications by providing a set of default configurations.

• It allows for easy setup of Spring projects with minimal configuration.

• Spring Boot includes embedded servers like Tomcat, Jetty, or Undertow, making it easy to deploy applications.

• It provides product...read more

Serialisation is the process of converting an object into a stream of bytes to store or transmit data.

• Serialisation is used to save the state of an object and recreate it when needed.

• It allows objects to be converted into a format that can be easily stored or transmitted.

• Common examples include JSON, XML, and binary serialisation.

• Serialisation is important for data persistence and inter-process communication.

To reverse a string, iterate through the string from end to start and append each character to a new string.

• Iterate through the string from end to start

• Append each character to a new string

• Return the reversed string

Use a hash set to find duplicates in a string array.

• Create a hash set to store unique elements.

• Iterate through the array and check if the element is already in the hash set.

• If it is, then it is a duplicate.

• Example: ['apple', 'banana', 'apple'] -> 'apple' is a duplicate.

To check if an integer is a palindrome, reverse the integer and compare it with the original integer.

• Convert the integer to a string to easily reverse it

• Reverse the string and compare it with the original string

• If they are the same, the integer is a palindrome

Design microservices with loose coupling, high cohesion, and fault tolerance.

• Decompose the application into small, independent services

• Use API gateways for service discovery and routing

• Implement fault tolerance with circuit breakers and retries

• Ensure each service has a single responsibility and is highly cohesive

• Use asynchronous communication between services

• Implement security and authentication at the API gateway leve...read more

Drawbacks of Selenium include limited support for non-web applications and challenges in handling dynamic web elements.

• Limited support for non-web applications, such as desktop or mobile apps

• Challenges in handling dynamic web elements, leading to flakiness in tests

• Steep learning curve for beginners

• Requires programming knowledge to create and maintain test scripts

• Slower execution speed compared to other automation tools

Count the number of occurrences of a specific substring in a given string.

• Use a loop to iterate through the string and check for the occurrence of the substring.

• Use the indexOf method to find the position of the substring in the string.

• Increment a counter each time the substring is found.

I am a dedicated QA QC Engineer with 5 years of experience in ensuring product quality and compliance with industry standards.

• Experienced in conducting quality control inspections and audits

• Skilled in developing and implementing quality assurance processes

• Proficient in using testing tools and techniques to identify defects

• Strong attention to detail and problem-solving skills

• Excellent communication and teamwork abilitie

Selenium is a popular open-source automation testing tool used for web application testing.

• Selenium is used for automating web browsers.

• It supports multiple programming languages like Java, Python, C#, etc.

• Selenium WebDriver is the most commonly used component for writing automation scripts.

• Selenium Grid is used for parallel testing across different browsers and environments.