Centre for Development of Advanced Computing Interview Questions and Answers

The structure of a Java program includes classes, methods, variables, and packages.

• Java program starts with a class definition, which includes methods and variables.

• Methods contain the code that defines the behavior of the program.

• Variables are used to store data within the program.

• Packages are used to organize classes and provide a namespace for the program.

• Example: public class HelloWorld { public static void main(St...read more

Garbage collector in Java manages memory by reclaiming unused objects, preventing memory leaks.

• Automatically frees up memory by removing objects that are no longer in use

• Prevents memory leaks by reclaiming memory from objects that are no longer referenced

• Utilized in Java programming to improve memory management and prevent out-of-memory errors

I rate my proficiency in Java programming as advanced.

• Advanced knowledge of object-oriented programming principles

• Experience with Java frameworks like Spring and Hibernate

• Ability to write efficient and scalable code

• Familiarity with design patterns and best practices

• Completed multiple Java projects successfully

A common model used in natural language processing is the Bag of Words model.

• Bag of Words model represents text as a collection of words, ignoring grammar and word order.

• It creates a vocabulary of unique words in the text and counts the frequency of each word.

• This model is often used for tasks like sentiment analysis, document classification, and topic modeling.

Activation functions introduce non-linearity to neural networks, enabling them to learn complex patterns and relationships.

• Activation functions help neural networks to learn complex patterns and relationships by introducing non-linearity.

• They ensure that the output of each neuron is mapped to a specific range, allowing for better learning and generalization.

• Common activation functions include ReLU, Sigmoid, Tanh, and S...read more

Mutex is used for exclusive access to a resource by a single thread, while semaphore is used for controlling access to a resource by multiple threads.

• Mutex is binary in nature, allowing only one thread to access the resource at a time.

• Semaphore can have a count greater than 1, allowing multiple threads to access the resource simultaneously.

• Mutex is typically used for protecting critical sections of code.

• Semaphore is of...read more

When volatile and const are used together, the variable is treated as read-only and its value can change unexpectedly.

• The const keyword indicates that the variable's value cannot be changed by the program.

• The volatile keyword tells the compiler that the variable's value may change at any time, even if it doesn't appear to be modified by the program.

• When used together, the variable is treated as read-only by the program...read more

Brute force can be both good and bad depending on the context and application.

• Brute force can be effective for small scale problems or when time is limited.

• However, it is inefficient and impractical for large scale problems.

• Brute force may also be necessary in certain scenarios where no other efficient solution exists.

• For example, brute force can be used in password cracking when other methods fail.

Mutex is used for exclusive access to a resource by a single thread, while semaphore is used for controlling access to a resource by multiple threads.

• Mutex is binary in nature, allowing only one thread to access the resource at a time.

• Semaphore can have a count greater than 1, allowing multiple threads to access the resource simultaneously.

• Mutex is used for protecting critical sections of code, while semaphore is used ...read more

When volatile and const are used together, the variable is treated as read-only and its value can change unexpectedly.

• Using volatile and const together is rare but can be useful for memory-mapped hardware registers.

• The volatile keyword tells the compiler that the variable can be changed unexpectedly, while const ensures the variable is read-only.

• Example: const volatile int * const ptr = (int *)0x1234; // pointer to a r...read more

DBMS queries are essential for managing and manipulating databases effectively.

• SELECT statement: Used to retrieve data from a database. Example: SELECT * FROM Employees;

• INSERT statement: Used to add new records. Example: INSERT INTO Employees (Name, Age) VALUES ('John Doe', 30);

• UPDATE statement: Used to modify existing records. Example: UPDATE Employees SET Age = 31 WHERE Name = 'John Doe';

• DELETE statement: Used to rem...read more

I prioritize tasks, set boundaries, delegate when necessary, and make time for self-care.

• Prioritize tasks based on deadlines and importance

• Set boundaries by establishing work hours and sticking to them

• Delegate tasks to team members when feeling overwhelmed

• Make time for self-care activities such as exercise, hobbies, and relaxation

• Avoid multitasking and focus on one task at a time

Yes, ISO 9000 is a set of international standards for quality management and quality assurance.

• ISO 9000 is a series of standards developed by the International Organization for Standardization (ISO) that focus on quality management systems.

• These standards provide guidance and tools for companies to ensure their products and services consistently meet customer requirements and regulatory standards.

• ISO 9000 certification...read more