Software Developer 1 Interview Questions and Answers for Freshers

To make projects more scalable and manage website traffic, implement caching, load balancing, and database optimization.

• Implement caching to reduce server load and improve response time

• Use load balancing to distribute traffic across multiple servers

• Optimize database queries and indexes to improve performance

• Use content delivery networks (CDNs) to serve static assets

• Consider using serverless architecture for scalability

• Monitor and analyze website traffic to identify bottleneck...read more

I implemented AWS services including EC2, Load Balancers, and Route 53 for a scalable web application.

• Set up EC2 instances for hosting the application, choosing appropriate instance types based on load requirements.

• Configured an Application Load Balancer to distribute incoming traffic across multiple EC2 instances for high availability.

• Used Route 53 for domain registration and DNS management, enabling easy access to the application via a custom domain.

• Implemented Auto Scaling...read more

The maximum subarray sum problem involves finding the contiguous subarray within a one-dimensional array of numbers which has the largest sum.

• Use Kadane's algorithm to find the maximum subarray sum efficiently.

• Consider all possible subarrays and calculate their sums to find the maximum.

• Dynamic programming can be used to solve this problem efficiently.

• Example: For array [-2, 1, -3, 4, -1, 2, 1, -5, 4], the maximum subarray sum is 6 (from index 3 to 6).

The question covers topics like OOPs concepts, searching in a sorted array, DP easy level problem, and hashing.

• OOPs concepts are fundamental to object-oriented programming and include concepts like inheritance, polymorphism, and encapsulation.

• Searching in a sorted array can be done using binary search, which has a time complexity of O(log n).

• DP easy level problems involve dynamic programming, which is a technique used to solve problems by breaking them down into smaller subpr...read more