FANUC Graduate Engineer Trainee (Get) Interview Questions and Answers

Microcontroller is a compact computer on a single chip with built-in memory and peripherals, while microprocessor is just a CPU.

• Microcontroller has on-chip memory and peripherals, while microprocessor requires external memory and peripherals.

• Microcontroller is used in embedded systems, while microprocessor is used in personal computers.

• Examples of microcontrollers include Arduino, PIC, and AVR, while examples of microp...read more

Diodes are electronic components that allow current to flow in one direction. Various types of diodes are used in electronic circuits.

• Rectifier diodes

• Zener diodes

• Schottky diodes

• LEDs

• Varactor diodes

• Tunnel diodes

• Photodiodes

• PIN diodes

SCR stands for Silicon Controlled Rectifier. It is a semiconductor device used for power control and switching applications.

• SCR is used in various applications such as motor control, lighting control, and heating control.

• It is used in AC power control circuits to regulate the amount of power delivered to a load.

• SCR is also used in voltage regulators, inverters, and battery chargers.

• It is a three-terminal device consist...read more

Java OOPs concepts include inheritance, polymorphism, encapsulation, and abstraction.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows objects to take on multiple forms and behave differently based on the context.

• Encapsulation hides the implementation details of a class and only exposes necessary information.

• Abstraction focuses on the essential features of an object and...read more

SQL aggregation functions perform calculations on multiple rows of a single column of a table.

• Aggregation functions include COUNT, SUM, AVG, MAX, and MIN.

• They are used with the SELECT statement to retrieve data from a table.

• Examples: SELECT COUNT(*) FROM customers; SELECT AVG(price) FROM products;

• Aggregate functions can also be used with the GROUP BY clause to group data by one or more columns.

Join is a SQL operation that combines rows from two or more tables based on a related column between them.

• Join is used to retrieve data from multiple tables in a single query.

• Types of join include inner join, left join, right join, and full outer join.

• Inner join returns only the matching rows from both tables.

• Left join returns all the rows from the left table and matching rows from the right table.

• Right join returns al...read more

Join queries are used to combine data from two or more tables based on a related column.

• Use the JOIN keyword followed by the name of the table you want to join.

• Specify the columns you want to select from each table.

• Use the ON keyword to specify the column(s) that the tables should be joined on.

• There are different types of joins: INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN.

• Example: SELECT customers.name, orde...read more

SQL is a programming language used to manage and manipulate relational databases.

• SQL stands for Structured Query Language

• It is used to create, modify, and query databases

• Common commands include SELECT, INSERT, UPDATE, and DELETE

• Example: SELECT * FROM customers WHERE age > 18;

A constructor is a special method used to initialize objects in a class.

• Constructors have the same name as the class they belong to.

• They are called automatically when an object is created.

• Constructors can take parameters to set initial values.

• They can be overloaded to provide multiple ways of initializing objects.

Class and object are fundamental concepts in object-oriented programming. Method overloading and method overriding are two ways to achieve polymorphism.

• A class is a blueprint or template for creating objects that encapsulate data and behavior.

• An object is an instance of a class that has its own state and behavior.

• Method overloading is when multiple methods in a class have the same name but different parameters.

• Method o...read more

Exception handling is the process of handling errors and unexpected events in a program.

• It involves identifying and anticipating potential errors

• It provides a mechanism to handle these errors gracefully

• It helps prevent program crashes and improves user experience

• Examples include try-catch blocks, throw statements, and finally blocks

Multithreading is the ability of a CPU to execute multiple threads concurrently. Wait method is used to pause a thread.

• Multithreading allows for better utilization of CPU resources

• Wait method is used to pause a thread until a certain condition is met

• Other methods like notify and notifyAll can be used to wake up waiting threads

• Multithreading can improve performance in applications that require parallel processing

• Java pr...read more

JSP and Servlet are Java technologies used for creating dynamic web pages and handling HTTP requests and responses.

• JSP stands for JavaServer Pages and is used for creating dynamic web pages that can interact with server-side data and logic.

• Servlet is a Java program that runs on a web server and handles HTTP requests and responses.

• JSP and Servlet work together to create dynamic web applications that can generate HTML, p...read more

SQL subquery is a query within another query used to retrieve data from one or more tables.

• Subqueries are enclosed in parentheses and placed within the WHERE or HAVING clause of the outer query.

• They can be used to filter, sort, or aggregate data based on the results of the subquery.

• Subqueries can also be used in the SELECT statement to retrieve a single value or set of values.

• Example: SELECT * FROM employees WHERE depa...read more

A complex query is a query that involves multiple tables, conditions, and/or functions.

• Start by identifying the tables involved in the query

• Determine the conditions that need to be met using WHERE clause

• Use JOIN to combine tables if necessary

• Use aggregate functions like COUNT, SUM, AVG, etc. to perform calculations

• Use subqueries to break down complex queries into smaller parts

• Test the query and refine as necessary