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I applied via Campus Placement and was interviewed in Feb 2024. There were 2 interview rounds.
Genral aptitude based on work , time , streams, speed , mixtures , ratio etc
Symmetric keys use the same key for encryption and decryption, while asymmetric keys use a pair of public and private keys.
Symmetric keys are faster and simpler, but require secure key exchange. Example: AES encryption.
Asymmetric keys provide better security and do not require secure key exchange. Example: RSA encryption.
Symmetric keys are typically used for encrypting large amounts of data, while asymmetric keys are u
Defend against DDOS attacks by implementing strong network security measures.
Use a firewall to filter out malicious traffic
Implement rate limiting to prevent overwhelming the server
Utilize a content delivery network (CDN) to distribute traffic and absorb attacks
Deploy DDOS mitigation services such as Cloudflare or Akamai
Regularly monitor network traffic for any unusual patterns
Different types of attacks include phishing, malware, DDoS, SQL injection, and social engineering.
Phishing: fraudulent emails or websites to trick users into revealing sensitive information
Malware: malicious software designed to harm a computer system
DDoS (Distributed Denial of Service): overwhelming a system with traffic to make it unavailable
SQL injection: inserting malicious SQL code into input fields to manipulate ...
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posted on 9 Nov 2019
I applied via Company Website and was interviewed in Oct 2019. There were 5 interview rounds.
posted on 10 Nov 2015
I appeared for an interview before Oct 2020.
Round duration - 40 minutes
Round difficulty - Medium
Asked about time complexity of algorithm, puzzles, DBMS, cutting edge technologies etc. What are indexes?
Given an array of integers ARR
of size N, consisting of 0s and 1s, you need to select a sub-array and flip its bits. Your task is to return the maximum count of 1s that can b...
Given an array of 0s and 1s, find the maximum count of 1s by flipping a sub-array at most once.
Iterate through the array and keep track of the maximum count of 1s obtained by flipping a sub-array.
Consider flipping a sub-array from index i to j and calculate the count of 1s in the resulting array.
Return the maximum count of 1s obtained by flipping a sub-array at most once.
Round duration - 20 minutes
Round difficulty - Medium
Asked 1 standard algorithm
You are provided with a 2-dimensional matrix having N
rows and M
columns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in t...
Count the number of islands in a 2D matrix of 1s and 0s.
Iterate through the matrix and perform depth-first search (DFS) to find connected 1s.
Mark visited cells to avoid redundant traversal.
Increment island count whenever a new island is encountered.
Tip 1 : prepare for competitive programming
Tip 2 : know about standard algorithm
Tip 3 : must be good with dbms
Tip 1 : must have projects, which you can explain to them
Tip 2 : have things on resume, that you are totally certain about.
posted on 21 Feb 2022
I applied via Campus Placement and was interviewed before Feb 2021. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in Oct 2020. There was 1 interview round.
I appeared for an interview in Jul 2024.
Leet code medium level question
Hashmap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
Hashmap uses a hashing function to map keys to indices in an array.
It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.
Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key", 123); int value = map.get("key");
posted on 3 Aug 2024
I applied via Campus Placement and was interviewed before Aug 2023. There were 3 interview rounds.
Simple and basic aptitude questions.
Design a booking system for electric power stations with specific criteria
Allow users to book time slots for charging their electric vehicles
Include features for users to check availability, make reservations, and cancel bookings
Implement a payment system for charging services
Provide notifications for booking confirmations and reminders
Allow for user accounts to track booking history and preferences
Design a movie ticket booking system with specific recommendations
Implement user authentication for secure booking
Include seat selection feature with real-time updates
Integrate payment gateway for seamless transactions
Provide booking history and ticket cancellation options
Recommend implementing a rating system for movies and theaters
posted on 2 Sep 2024
Keep your basics clear on DSA
Asked about my project. Had questions from my resume. Also asked me about the impact of my project and how i could optimize it.
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