interview-preparation

interviewing.io - practice your one-on-one interviewing with a peer. It’s good free practice, and as you get better interviewing.io will try to make a recruiting commission off of you by matching you with a real employer. Interview Cake - a lot of interview questions are “progressive”; they start with a simple question and have a lot of follow up questions, allowing the interviewer to fill up the hour they have with you, irrespective of how fast or slow you are to answer their questions. Interview Cake helped Paul get better at that specific interview format. Source: https://www.quora.com/Which-is-the-best-site-for-preparing-for-Google-interviews

Interview preparation sites:

https://refdash.com/login

https://www.geekyprep.com/

Spring interview questios:

http://www.codespaghetti.com/spring-interview-questions/

Database queries ( mysql )

Basic Level: https://www.w3schools.com/sql/ : Amazing starting point. Know all the basic things needed.

https://www.w3schools.com/sql/sql_quiz.asp: Don't forget to take the quiz.

Check out the amazing reference , may not be the full list, but good enough https://www.w3schools.com/sql/sql_ref_mysql.asp

Good starting point : https://www.hackerrank.com/domains/sql/select

slightly tougher with some good catch points: https://codefights.com/arcade/db

Practise this as well: https://leetcode.com/problemset/database/

my Anki Card.

System Design and programming discussion

https://www.youtube.com/channel/UCZLJf_R2sWyUtXSKiKlyvAw

System Design

Grokking the System Design Interview: https://www.educative.io/collection/5668639101419520/5649050225344512?authorName=Design%20Gurus

https://www.puncsky.com/blog/2016-02-13-crack-the-system-design-interview

https://github.com/donnemartin/system-design-primer

https://www.youtube.com/watch?v=0s1aVoeF0Gs

http://highscalability.com/all-time-favorites/

https://www.hiredintech.com/classrooms/system-design/lesson/52

https://www.interviewbit.com/courses/system-design/

https://github.com/shashank88/system_design#designques

https://nickcraver.com/blog/2016/02/17/stack-overflow-the-architecture-2016-edition/

How to generate business unique key in distributed environments

https://www.mongodb.com/blog/post/generating-globally-unique-identifiers-for-use-with-mongodb

A comparision between cassandra and mongodb , a good read, the comments are also

https://scalegrid.io/blog/cassandra-vs-mongodb/

Some design questions , we should try

Elevator
Facebook like Social Network
Twitter like Microblogging website
ATM Machine
Amazon like shopping cart website for general users
Blogging website
Google docs like online collaboration document
Youtube like online video streaming website.
JIRA like project management system
Quora or Yahoo answers like question answers website
Online food delivery like foodpanda
Game(human vs human) of chess, sudoku, tic tac toe etc.

CAP Theorem and a great war, Did you understand CAP properly ? Feast your brain https://martin.kleppmann.com/2015/05/11/please-stop-calling-databases-cp-or-ap.html https://arxiv.org/abs/1509.05393 https://research.google.com/pubs/pub45855.html?hl=pl

CAP Theorem in terms of mysql http://messagepassing.blogspot.com/2012/03/cap-theorem-and-mysql-cluster.html

Theads

https://dzone.com/articles/do-immutability-really-means

Memory Model:

https://betsol.com/2017/06/java-memory-management-for-java-virtual-machine-jvm/

Object Orientation

Try making the super class abstract, by doing so we are forcing the client to think there has to be a subclass which needs to used.

UML

https://vaughnvernon.co/?page_id=31

Kafka

https://community.hortonworks.com/articles/80813/kafka-best-practices-1.html

#Restful

http://restcookbook.com/

Programming Seft created.

Can you find the closest number that is 2^n ?

Can you find if a number is power of 2^n ?

can you find if a number is power of 3^n or for that matter m^n ?

can you count the number of 1's in a binary representation of a decimal number ?

Programming BitWISE:

Flip unset kth bit: https://app.codesignal.com/arcade/code-arcade/corner-of-0s-and-1s/b5z4P2r2CGCtf8HCR

For n = 37 and k = 3, the output should be
  killKthBit(n, k) = 33.

  3710 = 1001012 ~> 1000012 = 3310.

Array Packing : https://app.codesignal.com/arcade/code-arcade/corner-of-0s-and-1s/KeMqde6oqfF5wBXxf

For a = [24, 85, 0], the output should be arrayPacking(a) = 21784.

An array [24, 85, 0] looks like [00011000, 01010101, 00000000] in binary. After packing these into one number we get 00000000 01010101 00011000 (spaces are placed for convenience), which equals to 21784.

Coding practise places

Hackerearth.com

Hackerrank.com

leetcode.com

https://app.codesignal.com/arcade/code-arcade

The-Neo-Noir/interview-preparation