Ziac Softwares DOT NET Programmer Interview Questions and Answers

Q1. What are the types and number of constraints in your specific context?
Ans. 
There are various types of constraints in DOT NET development, including primary key, foreign key, unique, check, and default constraints.
• Primary key constraints ensure each record in a table is unique.

• Foreign key constraints enforce referential integrity between tables.

• Unique constraints ensure that all values in a column are distinct.

• Check constraints validate the data before it is inserted or updated.

• Default constra...read more
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Q2. What is the difference between an independent class and an abstract class?
Ans. 
Independent class can be instantiated while abstract class cannot be instantiated directly.
• Independent class can be directly instantiated using the 'new' keyword.

• Abstract class cannot be instantiated directly, it can only be used as a base class for other classes.

• Independent class does not require any derived class to implement its members.

• Abstract class can have abstract methods that must be implemented by derived cla
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Q1. Technical coding with the technical team
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Q1. What are your reasons for changing your job?
Ans. 
Seeking new challenges, growth opportunities, and a better work-life balance.
• Looking for new challenges and opportunities to learn and grow.

• Seeking a better work-life balance.

• Interested in working with new technologies or in a different industry.

• Wanting to advance my career and take on more responsibilities.

• Company restructuring or changes in management.
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It included all aptitude

Contains all pseudo questions related to DSA

Q1. What is a class?
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• Defines the properties and behaviors of objects

• Can be used to create multiple instances of objects

• Encapsulates data and methods within a single unit
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Q2. What is an object?
Ans. 
An object is a self-contained entity that consists of data and methods to manipulate that data.
• Objects are instances of classes in object-oriented programming.

• They have attributes (data) and methods (functions) to operate on the data.

• Objects can interact with each other through method calls.

• Example: In a car simulation program, a 'Car' object may have attributes like 'color' and 'speed', and methods like 'accelerate' a
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Q3. How the login page comes when clicks on some webpage icon like facebook?
Ans. 
The login page is displayed when a user clicks on a webpage icon like Facebook by redirecting to a separate login page.
• Clicking on the webpage icon triggers a redirect to the login page

• The login page prompts the user to enter their credentials

• After successful login, the user is redirected back to the original webpage
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Q4. DDL and DML commands
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Q5. Polymorphism and method overriding?
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Q6. Entire opps in java
Ans. 
Object-oriented programming in Java involves creating classes, objects, inheritance, polymorphism, and encapsulation.
• Classes are blueprints for objects, defining attributes and behaviors.

• Objects are instances of classes, representing real-world entities.

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

• Polymorphism enables objects to be treated as instances of their parent class.

• Encapsulat...read more
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Aptitude, core concepts and a code

Q1. What is the one thing you learnt from college club?
Ans. 
I learned the importance of teamwork and collaboration from my college club.
• Developed strong communication skills by working with diverse group of individuals

• Learned how to delegate tasks effectively to achieve common goals

• Gained experience in problem-solving and conflict resolution through group projects
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Q2. What is the one thing you want to expereince?
Ans. 
I want to experience living in a different country and immersing myself in a new culture.
• Traveling to a foreign country and learning about their customs and traditions

• Trying new foods and experiencing different ways of life

• Making friends with locals and exploring the local attractions
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Q1. Difference between relational and non relational dbms
Ans. 
Relational DBMS stores data in tables with predefined relationships, while non-relational DBMS stores data in flexible, schema-less formats.
• Relational DBMS uses structured query language (SQL) for querying data

• Non-relational DBMS can store data in various formats like key-value pairs, document-based, graph databases

• Relational DBMS ensures data integrity through normalization and constraints

• Non-relational DBMS offers be...read more
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Q2. Difference betweeen class,abstract class,interface in python
Ans. 
Class is a blueprint for creating objects, abstract class cannot be instantiated and can have abstract methods, interface is a contract for classes to implement certain methods.
• Class is a blueprint for creating objects with attributes and methods.

• Abstract class cannot be instantiated and can have abstract methods that must be implemented by subclasses.

• Interface is a contract for classes to implement certain methods, bu
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Q3. Project related questions were asked
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Q1. Why Amazon Software Developer?
Ans. 
Amazon offers challenging projects, innovative technologies, and a collaborative work environment.
• Opportunity to work on cutting-edge projects like Amazon Web Services (AWS) or Alexa

• Access to vast resources and tools for development

• Collaborative work culture that encourages learning and growth

• Opportunity to impact millions of customers worldwide

• Competitive compensation and benefits package
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Q2. Why do you want to work at amazon ?
Ans. 
I want to work at Amazon because of their innovative culture, vast resources, and opportunities for growth.
• Amazon is known for its innovative culture and cutting-edge technology.

• They have vast resources and a global reach, providing opportunities to work on impactful projects.

• Amazon offers great career growth and development opportunities for software developers.

• I admire Amazon's customer-centric approach and focus on
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Q3. What are your strengths and weakness?
Ans. 
My strengths include problem-solving skills and attention to detail. My weakness is sometimes being too critical of my own work.
• Strengths: problem-solving skills

• Strengths: attention to detail

• Weakness: being too critical of my own work
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Q4. How would you solve?
Ans. 
I would solve the problem by breaking it down into smaller tasks, analyzing requirements, designing a solution, coding, testing, and debugging.
• Analyze requirements thoroughly before starting the development process

• Break down the problem into smaller tasks to make it more manageable

• Design a solution architecture that meets the requirements and is scalable

• Code the solution using best practices and coding standards

• Test th...read more
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Q5. What are the short term and long-term for teame or organisation?
Ans. 
Short term goals focus on immediate tasks and objectives, while long-term goals involve strategic planning and growth.
• Short term goals may include completing a specific project, improving team communication, or implementing a new software feature.

• Long-term goals could involve expanding the team, increasing market share, or developing new products or services.

• Short term goals help keep the team focused and motivated, wh...read more
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Basic aptitude and common CS fundamentals questions.

Share the current technology related topic.

Q1. Question on OOPS
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Q2. Coding questions
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MCQ’s only, DSA and other MCQ 1 hour

Q1. Project related questions
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Q2. Coding problem in any basic programming language
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Q1. General HR and salary discussions
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Q2. Location and other related queries
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Q1. What is a comparator?
Ans. 
A comparator is a function that compares two objects to determine their ordering.
• Used in sorting algorithms to determine the order of elements

• Returns a negative value if the first object is less than the second, zero if they are equal, and a positive value if the first object is greater

• Commonly used in Java with the Comparator interface
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Q2. What is reentrant lock?
Ans. 
A reentrant lock is a synchronization primitive that allows a thread to re-enter a critical section it already holds.
• Prevents deadlock by allowing a thread to acquire the lock multiple times

• Each lock acquisition must be followed by a corresponding release

• Commonly used in multi-threaded programming to protect shared resources
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Q1. Difference between linked list and array list
Ans. 
Linked list is a data structure where elements are stored in nodes with pointers to the next node. Array list is a dynamic array that can grow or shrink in size.
• Linked list allows for efficient insertion and deletion of elements anywhere in the list.

• Array list provides fast access to elements using index, but slower insertion and deletion compared to linked list.

• Example: Linked list - 1 -> 2 -> 3 -> 4 -> 5, Array list
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Q2. Difference between @controller and @ Rest controller
Ans. 
The @Controller annotation is used for traditional MVC controllers, while @RestController is used for RESTful web services.
• The @Controller annotation is used to define a class as a Spring MVC controller, which can handle HTTP requests and return a view.

• The @RestController annotation is used to define a class as a controller for RESTful web services, which can handle HTTP requests and return data in JSON or XML format.

• T...read more
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