INDCON PROJECTS & EQUIPMENT Interview Questions and Answers

Here are some Java codes.

• Create a class with a main method

• Declare variables with data types

• Use loops and conditional statements

• Implement object-oriented programming concepts

• Handle exceptions with try-catch blocks

My preferred programming language is Java.

• I have experience in Java and find it easy to read and write.

• Java has a vast community and a lot of resources available online.

• Java is platform-independent and can run on any operating system.

• During projects, I have faced issues with debugging and optimizing code.

• I have also faced challenges with integrating different technologies and APIs.

The question covers topics in C, Java, and SQL including prime numbers, collections, SQL joins, and garbage collection.

• To check if a number is prime in C, use a loop to check if it is divisible by any number less than itself.

• In Java, collections are used to store and manipulate groups of objects. Examples include ArrayList, LinkedList, and HashSet.

• SQL joins are used to combine data from multiple tables based on a common column. Examples include INNER JOIN, LEFT JOIN, and FULL...read more

Lifecycle hooks in Angular are methods that allow you to tap into the lifecycle of a component or directive.

• Lifecycle hooks include ngOnInit, ngOnChanges, ngDoCheck, ngOnDestroy, etc.

• ngOnInit is used for initialization logic, ngOnChanges for reacting to input changes, ngDoCheck for custom change detection, ngOnDestroy for cleanup tasks, etc.

• These hooks allow you to perform actions at specific points in the component's lifecycle.

Securing a RESTful API involves authentication, authorization, encryption, and input validation to protect data and resources.

• Use HTTPS to encrypt data in transit, preventing eavesdropping.

• Implement OAuth 2.0 for secure token-based authentication.

• Validate and sanitize all inputs to prevent SQL injection and XSS attacks.

• Use API keys to control access to the API endpoints.

• Implement rate limiting to prevent abuse and denial-of-service attacks.

• Log and monitor API usage for suspic...read more

Configuring Jenkins involves setting up plugins, creating jobs, configuring build triggers, and setting up notifications.

• Install Jenkins on a server

• Set up plugins for source code management, build triggers, notifications, etc.

• Create Jenkins jobs for different projects

• Configure build triggers like polling SCM or webhook triggers

• Set up notifications for build status updates