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I appeared for an interview in Oct 2023.
IMAP stands for Internet Message Access Protocol, used for retrieving emails from a mail server.
IMAP allows users to access their emails from multiple devices
It keeps emails stored on the server, allowing for easy access and synchronization
IMAP is commonly used by email clients like Outlook, Thunderbird, and Apple Mail
POP3 (Post Office Protocol version 3) is a protocol used to retrieve emails from a mail server.
POP3 is used to download emails from a mail server to a local email client.
It works by connecting to the server and downloading any new messages to the client's inbox.
POP3 typically uses port 110 for unencrypted connections and port 995 for encrypted connections.
Once emails are downloaded via POP3, they are usually removed fr...
SMTP (Simple Mail Transfer Protocol) is a communication protocol used for sending and receiving email.
SMTP is used to send emails between servers.
It works in conjunction with POP3 or IMAP protocols for email retrieval.
SMTP uses port 25 for communication.
Example: When you send an email from your email client, SMTP is used to send the email to the recipient's email server.
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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.
I applied via Campus Placement and was interviewed in Oct 2023. There were 5 interview rounds.
There were 19 questions consists of aptitude and technical subject. Then 2 codes were there . Then 1 code of SQL query .
Generate all permutations of a given string using recursion and backtracking.
Use recursion to generate all possible permutations of the string.
Use backtracking to backtrack and explore all possible combinations.
Store each permutation in an array of strings.
I applied via Campus Placement and was interviewed before Apr 2023. There were 2 interview rounds.
Simple DBMS and DSA Questions
I applied via Campus Placement and was interviewed before Apr 2023. There were 3 interview rounds.
Coding round consisting DSA portion mainly.
I applied via Naukri.com and was interviewed in Dec 2023. There were 2 interview rounds.
It was medium lavel aptitude test and it included coding assessments
I applied via Company Website and was interviewed in Jan 2024. There were 2 interview rounds.
2 dsa +1sql leetcode medium tyoe questions
Array questions - rearranging letters for encryption
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