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I applied via Campus Placement and was interviewed before Jun 2023. There were 3 interview rounds.
I have been asked 1 DSA question and 1 SQL question as the company came for campus recruitment.
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A doubly-linked list is a data structure where each node contains a reference to both the previous and next nodes.
Allows traversal in both directions
Used in implementing LRU cache
Used in browser history
Used in undo-redo functionality
Doubly linked list allows traversal in both directions, while singly linked list only allows traversal in one direction.
Doubly linked list allows for efficient deletion of nodes compared to singly linked list.
Doubly linked list can be traversed in both forward and backward directions.
Doubly linked list can be used to implement a stack or queue.
Singly linked list requires less memory than doubly linked list.
Doubly linke...
Graph data structure is used in various applications such as social networks, routing algorithms, and recommendation systems.
Social networks use graphs to represent users and their connections.
Routing algorithms use graphs to find the shortest path between two points.
Recommendation systems use graphs to analyze user behavior and suggest relevant items.
Graphs are also used in computer networks, image processing, and mac...
In-memory DB stores data in RAM for faster access while MySQL stores data on disk.
In-memory DB is faster than MySQL as it eliminates disk I/O operations.
In-memory DB is suitable for real-time applications that require low latency.
MySQL is suitable for applications that require data persistence and durability.
In-memory DB may not be suitable for large datasets as it requires a lot of RAM.
MySQL supports complex queries a...
RDBMS is a structured database that uses SQL while NoSQL is a non-relational database that doesn't use SQL.
RDBMS stores data in tables with predefined schema while NoSQL stores data in documents, key-value pairs, or graphs.
RDBMS is good for complex queries and transactions while NoSQL is good for scalability and handling unstructured data.
Examples of RDBMS include MySQL, Oracle, and SQL Server while examples of NoSQL i
Indexing is the process of organizing data in a database or search engine to improve search efficiency.
Indexing creates a data structure that allows for faster retrieval of information.
It involves creating an index that maps the location of data in a database or search engine.
Indexing can be done on various types of data, such as text, numbers, and dates.
Examples of indexing methods include B-tree, hash, and bitmap ind
The question is unclear and requires clarification.
The question is not specific about what 'above question' it is referring to.
The term 'internal working' is also vague and needs to be defined.
Without more information, it is impossible to provide a meaningful answer.
Print internal nodes of a binary tree (excluding left and right view nodes)
Traverse the tree in post-order and check if the node has both left and right children
If yes, then it is an internal node and print it
If no, then continue traversing the tree
Example: For the tree 1-2-4-5-3, the internal nodes are 2 and 4
I applied via Approached by Company and was interviewed before Oct 2022. There were 4 interview rounds.
Design an API rate limiter to control the number of requests a user can make within a certain time frame.
Implement a token bucket algorithm to track and limit the number of requests per user.
Set a maximum limit of requests per user per time frame (e.g. 100 requests per hour).
Use a sliding window to track the requests and reset the limit after the time frame expires.
I applied via Naukri.com and was interviewed before Feb 2021. There were 2 interview rounds.
Market related question
I applied via Indeed and was interviewed before Jun 2019. There were 4 interview rounds.
I have 3 years of experience working as a Data Analyst in the finance industry.
Analyzed financial data to identify trends and make recommendations
Created reports and dashboards using tools like Tableau and Excel
Collaborated with cross-functional teams to improve data quality and accuracy
I applied via Recruitment Consulltant and was interviewed before Sep 2021. There were 3 interview rounds.
Question regarding market understanding
I applied via Company Website and was interviewed before Nov 2022. There were 2 interview rounds.
Netflix user churn case study,
Uber booking number reduce
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