Digitech Services Interview Questions and Answers

Q1. What is angular
Ans. 
Angular is a popular open-source front-end web application framework developed by Google.
• Angular is used for building dynamic web applications.

• It allows for the creation of single-page applications.

• Angular uses TypeScript for building applications.

• It provides features like data binding, dependency injection, and routing.

• Angular has a large community and ecosystem of libraries and tools.

• Examples: AngularJS, Angular 2, A
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Q2. What is routing
Ans. 
Routing is the process of selecting a path for network traffic to travel from source to destination.
• Routing involves determining the best path for data packets to travel through a network

• Routers use routing tables to make decisions on where to send data packets

• Routing protocols like OSPF and BGP help routers communicate and update routing information
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Q3. How many types of forms
Ans. 
There are various types of forms, such as physical forms, digital forms, legal forms, etc.
• Physical forms: Paper-based forms that are filled out by hand.

• Digital forms: Electronic forms that are filled out online or through software.

• Legal forms: Forms used for legal purposes, such as contracts or agreements.
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Q4. Lazy loading in angular
Ans. 
Lazy loading in Angular is a technique used to load modules only when they are needed, improving performance by reducing initial load time.
• Lazy loading helps in reducing the initial bundle size of the application by loading modules asynchronously.

• It improves the performance of the application by only loading the modules that are required at a particular time.

• Lazy loading is achieved by using the loadChildren property i...read more
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Q5. Rx jx operator in angular
Ans. 
The rxjs operator in Angular is used for reactive programming and handling asynchronous data streams.
• RxJS operators are functions that build on the observables foundation to enable sophisticated manipulation of asynchronous data streams.

• Operators can be used to filter, transform, combine, and more on observables.

• Example: map(), filter(), mergeMap(), switchMap()
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Q6. Testing frameworks how to works
Ans. 
Testing frameworks are tools that help automate the process of testing software applications.
• Testing frameworks provide a structure for writing and executing test cases.

• They offer features like test data management, test case organization, and reporting.

• Examples include JUnit for Java, NUnit for .NET, and pytest for Python.
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Q7. How to load a angular application
Ans. 
To load an Angular application, you can use the Angular CLI command 'ng serve' to start a development server.
• Use the Angular CLI command 'ng serve' to start a development server

• Navigate to the project directory in the terminal and run 'ng serve'

• Open a web browser and go to 'http://localhost:4200/' to view the application
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All was apptitude question and was mcq.

Q1. What is inheritance
Ans. 
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
• Allows for code reusability and promotes the concept of 'is-a' relationship

• Derived class inherits properties and behaviors of the base class

• Can have multiple levels of inheritance (multi-level inheritance)

• Example: Class 'Car' can inherit from class 'Vehicle', inheriting attributes like 'color' and
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Q2. What do you mean by oops.
Ans. 
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
• OOPS is a programming paradigm that uses objects to design applications.

• It focuses on data encapsulation, inheritance, polymorphism, and abstraction.

• Examples of OOPS languages include Java, C++, and Python.
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Q1. Tell me introduction
Ans. 
Introduction is a brief overview of oneself, including background, experience, and skills.
• Introduce yourself by stating your name and current position.

• Provide a summary of your educational background and relevant experience.

• Highlight key skills and accomplishments that are relevant to the position.

• Conclude with your career goals and why you are interested in the role.
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Q2. Where do you see yourself in 5 years
Ans. 
In five years, I see myself as a senior system engineer leading a team of talented professionals, implementing cutting-edge technologies, and contributing to the success of the organization.
• Leading a team of system engineers

• Implementing cutting-edge technologies

• Contributing to the success of the organization
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Q1. Java fundamental
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Q1. Some deep question on stream API of Java8
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Q2. Two program questions -> Anagram String and find first non repeating character from a string
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Q1. Questions on Product development phases
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Q2. Questions on Agile methodologies
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Q1. Discuss 4 case study related to supply chain management.
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