Total IT Solutions Desktop Support Engineer Interview Questions and Answers for Freshers

It was easy and basic coding questions like array list, rest services, etc.

Q1. Introduction, salary discussion, etc.
Add your answer

Q1. JAVA related questions
Add your answer
Q2. Different frameworks like spring springboot
Ans. 
Spring and Spring Boot are popular Java frameworks used for building enterprise applications.
• Spring is a comprehensive framework that provides support for various functionalities like dependency injection, aspect-oriented programming, and transaction management.

• Spring Boot is an opinionated framework built on top of Spring, which simplifies the setup and configuration of Spring applications by providing defaults for co...read more
Answered by AI
Add your answer

Median level coding round

Speak to given topic for 2 mins

Q1. Design a multi tenant logging system
Ans. 
A multi-tenant logging system captures logs from multiple clients while ensuring data isolation and security.
• Use a centralized logging service (e.g., ELK stack) to aggregate logs from different tenants.

• Implement tenant identification in log entries (e.g., using tenant IDs or namespaces).

• Ensure data isolation by using separate indices or databases for each tenant in the logging system.

• Provide role-based access control (...read more
Answered by AI
Add your answer
Q2. DSA 3 - sum problem
Ans. 
The sum problem involves finding combinations of numbers that add up to a target value.
• Identify the target sum and the array of numbers.

• Use techniques like recursion, backtracking, or dynamic programming.

• Example: Given [2, 3, 5] and target 8, combinations are [3, 5] and [2, 3, 3].

• Consider edge cases like empty arrays or negative numbers.
Answered by AI
Add your answer
Q3. What is event loop?
Ans. 
The event loop is a programming construct that manages asynchronous operations in environments like JavaScript.
• The event loop allows non-blocking I/O operations, enabling efficient handling of multiple tasks.

• It works by continuously checking the call stack and the message queue.

• When the call stack is empty, the event loop pushes the first message from the queue to the stack for execution.

• Example: In JavaScript, setTime...read more
Answered by AI
Add your answer
Q4. Difference between cluster and worker threads
Ans. 
Cluster threads manage multiple processes, while worker threads execute tasks within a single process.
• Cluster threads are used in distributed systems to manage multiple nodes.

• Worker threads operate within a single application, handling tasks concurrently.

• Example of cluster threads: Node.js cluster module for scaling applications.

• Example of worker threads: Java's ExecutorService for managing thread pools.
Answered by AI
Add your answer
Q5. Why node js is single threaded
Ans. 
Node.js is single-threaded to handle asynchronous operations efficiently, using an event-driven architecture for scalability.
• Node.js uses a single-threaded event loop to manage multiple connections concurrently.

• This design allows Node.js to handle I/O operations without blocking the main thread.

• For example, while waiting for a database query, Node.js can process other requests.

• Single-threading simplifies the programmin...read more
Answered by AI
Add your answer