Recaero Quality Assurance Engineer Trainee Interview Questions and Answers

Worked as a software engineer for 3 years at XYZ Company, specializing in front-end development.

• Developed and maintained front-end features for web applications

• Collaborated with cross-functional teams to deliver projects on time

• Participated in code reviews and provided feedback for improvements

Utilized STL in previous work experience for efficient data manipulation and storage

• Used vector to store and manipulate dynamic arrays of data

• Utilized map for efficient key-value pair storage and retrieval

• Implemented algorithms from the algorithm library for sorting and searching data

Used OOPS principles to design and implement a modular system for managing user data

• Created classes for User, Admin, and Moderator with inheritance and polymorphism

• Implemented encapsulation by restricting access to certain data fields through getters and setters

• Utilized abstraction to hide complex implementation details from other parts of the system

• Implemented interfaces for different user roles to ensure consistent b

Implemented multithreading in a web scraping project to improve performance and efficiency.

• Used multithreading to scrape data from multiple websites simultaneously

• Implemented thread pooling to manage and reuse threads efficiently

• Utilized synchronization techniques to prevent data corruption and ensure thread safety

Different types of read and find include sequential, binary, indexed, and hash.

• Sequential read: reads data in order from start to end of file

• Binary read: reads data in chunks of fixed size

• Indexed read: uses an index to locate data

• Hash read: uses a hash function to locate data

• Sequential find: searches for data in order from start to end of file

• Binary find: searches for data in chunks of fixed size

• Indexed find: uses an i...read more

Histogram is a graphical representation of data distribution.

• It consists of bars that represent the frequency of data within certain intervals.

• The x-axis represents the intervals and the y-axis represents the frequency.

• It is commonly used in statistics to analyze data distribution.

• Example: A histogram of student grades in a class can show the distribution of grades.

• Example: A histogram of the heights of people in a pop

To get data from Adabas, use Adabas API or Adabas SQL Gateway.

• Adabas API provides a set of functions to access Adabas database directly.

• Adabas SQL Gateway allows accessing Adabas data using SQL statements.

• Adabas can also be accessed through middleware like JDBC or ODBC drivers.

• Example: Using Adabas API, call the function 'ADAREAD' to read data from a file.

• Example: Using Adabas SQL Gateway, execute a SELECT statement to

Get transaction is a method to retrieve data from a database or blockchain.

• Get transaction is used to retrieve a specific transaction from a database or blockchain.

• It is commonly used in blockchain technology to retrieve information about a specific transaction on the blockchain.

• In databases, it is used to retrieve data from a specific row or set of rows based on certain criteria.

• Examples of databases that use Get tran