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AlphaSense Interview Questions and Answers
17 Interview questions
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...
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
To wait for file loading in Selenium Automation, we can use explicit wait or thread.sleep() method.
Explicit wait is used to wait for a specific condition to occur before proceeding with the next step.
Thread.sleep() method is used to pause the execution for a specified amount of time.
We can also use the ExpectedConditions class to wait for a file to be loaded.
Waiting for a file to be loaded is important to ensure t...
Multi-window handling in Selenium involves managing multiple browser windows or tabs during automation testing.
Use driver.getWindowHandles() to get all window handles.
Switch to a specific window using driver.switchTo().window(windowHandle).
To close a window, use driver.close() and switch back to the original window.
Example: After opening a new tab, switch back to the main window using driver.switchTo().window(orig...
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...
Multiple credentials can be logged in using data from an excel sheet.
Read the excel sheet using a library like Apache POI
Iterate through the rows and columns to get the data
Use a loop to login with each set of credentials
Assert the login success or failure for each set of credentials
Abstract class is a class that cannot be instantiated and can have both abstract and non-abstract methods. Interface is a blueprint for a class and can only have abstract methods.
Abstract class can have constructors while interface cannot
A class can implement multiple interfaces but can only inherit from one abstract class
Abstract class can have instance variables while interface cannot
Abstract class is used for c...
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
AlphaSense Interview Experiences
13 interviews found
Anonymous
Selected
I applied via Recruitment Consulltant and was interviewed before Sep 2022. There were 3 interview rounds.
2-3 questions SQL-based questions on one sample dataset. They test for your knowledge on
- Window functions
- Complex joins
- Use of CTE's
- Query performance and cost optimization
(2 Questions)
- Q1. Tell me about a data engineering challenge you faced. How did you tackle it and what was the outcome?
- Ans.
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
- Q2. Tell me about a scenario where you noticed a data discrepancy or an inefficiency in the current process.
Skills evaluated in this interview
I applied via Referral and was interviewed in Jun 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Project discussion and questions on my project
- Q2. Some system design question regarding if there is an api who takes lots of time to execute. What can be the reason and how to reduce the time
- Ans.
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 Service...
(2 Questions)
- Q1. Discussion on project
- Q2. Create a program who prints last 10 lines from a file and that program will trigeer itself in every one minute
- Ans.
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
Skills evaluated in this interview
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
(1 Question)
- Q1. Asked me theoretical questions mostly on java internals like SOLID Principles, Mutable Classes, Locks in Java, Dependency injection, Memory management, GC Working, hashmap internals. How to make any class ...
David Dunn
Selected
(1 Question)
- Q1. Why are you pursuing a career in sales?
Pitch AlphaSense to a prospect and explain why they would use the AlphaSense platform.
(1 Question)
- Q1. What are you motivated by?
Selected
I applied via Company Website and was interviewed before Sep 2023. There were 2 interview rounds.
Medium Code, Design, database design, Java
(2 Questions)
- Q1. Kubernetes basics
- Q2. Leet code medium question
Selected
I appeared for an interview before Apr 2024, where I was asked the following questions.
- Q1. DSA: LRU Cache and one other DSA easy question. General questions on docker, kubernetes
- Q2. Low Level Design and High Level Design
I applied via Job Portal and was interviewed in Apr 2024. There were 2 interview rounds.
HackerRank Test -> 2 Programs one with java logic and one for Selenium
(1 Question)
- Q1. Not attended next round
I applied via LinkedIn and was interviewed in Jul 2023. There were 3 interview rounds.
(1 Question)
- Q1. Discussion about projects and technology
Search index given a query and document
(1 Question)
- Q1. Design Search engine
- Ans.
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
Interview Preparation Tips
Love marriage or arrange marriage
Sums and logistics questions
(2 Questions)
- Q1. My skill and personal details
- Q2. About my family and school and College and relocate process
I applied via LinkedIn and was interviewed in Sep 2022. There were 4 interview rounds.
(1 Question)
- Q1. Normal billing questions
(1 Question)
- Q1. In depth billing question by manager
(1 Question)
- Q1. More billing related questions by Director
Interview Preparation Tips
- Billi
- Po
- Invoice
I appeared for an interview in Jan 2021.
(2 Questions)
Round duration - 90 minutes
Round difficulty - Medium
2 Coding problems , MCQs (CS related, ML related)
- Q1.
Connect Nodes at Same Level Problem Statement
An assignment is to link adjacent nodes at the same level in a binary tree. Each node in a binary tree has at most two children (left and right) and a next po...
- Ans.
Connect adjacent nodes at the same level in a binary tree by setting next pointers.
Traverse the tree level by level using a queue.
For each level, connect nodes using the next pointer.
Set the next pointer of the last node in each level to NULL.
Use constant space aside from input constraints.
Example: Input - 1 2 3 4 -1 5 6 -1 7 -1 -1 -1 -1 -1 -1, Output - 1 # 2 3 # 4 5 6 # 7 #
- Q2.
Loop Detection and Removal in Linked List
In a singly linked list, detect if a loop exists and remove the loop if present. Modify the linked list directly to eliminate any loops before returning it.
Inpu...
- Ans.
Detect and remove loop in a singly linked list efficiently.
Use Floyd's Cycle Detection Algorithm to detect the loop in the linked list.
Once the loop is detected, use two pointers to find the start of the loop.
Break the loop by setting the next pointer of the last node in the loop to null.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
2 Coding problems, No compilation of code. Only pseudocode required
- Q1.
Median of Two Sorted Arrays
Given two sorted arrays
AandBof sizesNandM, find the median of the merged array formed by combining arraysAandB. If the total number of elements,N + M, is even, the m... - Ans.
Find the median of two sorted arrays by merging them and calculating the median of the combined array.
Merge the two sorted arrays into one sorted array.
Calculate the median of the merged array based on the total number of elements.
If the total number of elements is even, take the mean of the two middle elements as the median.
- Q2.
Extracting Leaf Nodes from a Binary Tree
Given a binary tree, develop a solution to retrieve a list of all the leaf nodes in the order they appear from left to right. If two leaf nodes are equidistant fro...
- Ans.
Retrieve leaf nodes from a binary tree in left to right order, prioritizing lesser depth or smaller node data if equidistant from leftmost node.
Traverse the binary tree in level order and keep track of leaf nodes.
Prioritize leaf nodes with lesser depth or smaller node data if equidistant from leftmost node.
Return the list of leaf nodes in the order they appear from left to right.
(2 Questions)
Round duration - 40 minutes
Round difficulty - Hard
OS-CN fundamentals
- Q1. What is a peer-to-peer connection?
- Ans.
A peer-to-peer connection is a network connection between two or more devices without the need for a central server.
Allows devices to communicate directly with each other
Each device can act as both a client and a server
Commonly used in file sharing applications like BitTorrent
- Q2. What are some key concepts related to virtual memory, and can you discuss any follow-up questions that may arise from them?
- Ans.
Key concepts related to virtual memory and potential follow-up questions
Key concepts: paging, segmentation, page tables, TLB, page faults, thrashing
Follow-up questions: How does virtual memory differ from physical memory? What is the role of the operating system in managing virtual memory? How does virtual memory improve system performance?
Example: Explain the concept of page tables and how they are used in virtual mem...
Interview Preparation Tips
Tip 1 : Never leave any topic from any chapter / Subject
Tip 2 : Learn to explain your thoughts well
Tip 3 : Learn from previous experiences / interviews / problems asked.
Tip 4 : Atleast 4 projects in Resume
Tip 1 : Atleast 4 projects on Resume
Tip 2 : Do not write false things. You always get caught. Be genuine.
Skills evaluated in this interview
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AlphaSense Interview FAQs
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