AlphaSense Interview Questions and Answers

Create a program to print last 10 lines from a file and trigger itself every minute.

• Read the file and store the last 10 lines in a data structure like a queue or array

• Use a timer to trigger the program every minute

• Print the last 10 lines from the data structure

APIs can be slow due to various factors; optimizing them involves identifying bottlenecks and improving performance.

• Network Latency: High latency can slow down API responses. Use CDNs to cache responses closer to users.

• Database Queries: Inefficient queries can delay responses. Optimize queries and use indexing.

• Heavy Computation: Offload heavy computations to background jobs or use caching mechanisms.

• Third-party Se...read more

Design a search engine

• Define the scope and purpose of the search engine

• Determine the data sources and indexing strategy

• Implement a ranking algorithm to prioritize search results

• Design a user-friendly interface for search queries

• Consider scalability and performance optimizations

• Implement features like autocomplete and spell correction

Migrating data from on-premise servers to cloud storage

• Identified data sources and destination in cloud storage

• Developed ETL pipelines to extract, transform, and load data

• Ensured data integrity and security during migration process

• Monitored and optimized performance of data transfer

• Collaborated with cross-functional teams for successful migration

Selenium waits are crucial for handling dynamic web elements during automation testing.

• Implicit Wait: Sets a default wait time for the entire session. Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

• Explicit Wait: Waits for a specific condition to occur before proceeding. Example: WebDriverWait wait = new WebDriverWait(driver, 10); wait.until(ExpectedConditions.visibilityOf(element));

• Fluen...read more

WebDriver is a tool for automating web applications. WebElement is an interface representing an HTML element.

• WebDriver is a browser automation tool used to control the browser and interact with web elements

• WebElement is an interface representing an HTML element on a web page

• WebDriver interacts with web elements using the WebElement interface

• Examples of web elements include buttons, text fields, and links