ACKO Senior Software Engineer Interview Questions and Answers

Q1. One leetcode easy-medium problem
Add your answer
Q2. Java, springboot and oops question
Add your answer

Q1. Project related questions
Add your answer
Q2. System design questions
Add your answer

Q1. Aks about the few questions of dsa
Add your answer
Q2. Ask about the design system
Add your answer

Q1. Ask about the design system
Add your answer

Q1. Current company architecture and what was your role
Add your answer

Q1. Machine coding: Design in-memory document search
Add your answer

Q1. HLD: Design a ad-click aggregation service
Ans. 
Design an ad-click aggregation service for tracking and analyzing ad clicks.
• Use a distributed system to handle high volume of ad click data

• Implement real-time processing for immediate insights on ad performance

• Utilize a database to store aggregated ad click data for reporting and analysis
Answered by AI
Add your answer

Normal DSA round from hacker rank

DSA round from hacker rank or leetcode

Q1. With hiring manager
Add your answer

Search in Rotated sorted array

Q1. Low Level Design: How to do rate limiting for a platform serving 100K requests per second.
Ans. 
Implement rate limiting for a platform serving 100K requests per second.
• Use a token bucket algorithm to limit the rate of incoming requests.

• Set a maximum number of tokens in the bucket to control the rate.

• Refill the bucket at a constant rate to allow bursts of requests.

• Track the timestamp of the last request to enforce the rate limit.

• Consider using a distributed rate limiting system for scalability.

• Monitor and adjust t...read more
Answered by AI
Add your answer

Q1. Explain Concurrency
Ans. 
Concurrency is the ability of a system to execute multiple tasks simultaneously.
• Concurrency allows multiple tasks to run concurrently, improving performance and efficiency.

• Concurrency can be achieved through multithreading or multiprocessing.

• Example: A web server handling multiple requests simultaneously using multithreading.
Answered by AI
Add your answer
Q2. Explain Acid principles
Ans. 
ACID principles are a set of properties that guarantee database transactions are processed reliably.
• Atomicity: Transactions are all or nothing. If one part of the transaction fails, the entire transaction is rolled back.

• Consistency: Transactions bring the database from one valid state to another. All constraints are satisfied.

• Isolation: Transactions are isolated from each other until they are completed.

• Durability: Once...read more
Answered by AI
Add your answer