๐Ÿ‘ฆ ๐Ÿ‘ง Technical-Interview guidelines written for those who started studying programming. I wish you all the best. ๐Ÿ‘พ
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README.md

Technical Interview Guidelines for beginners

author CONTRIBUTORS LICENSE HitCount

ํ•ด๋‹น Repository ์— ๊ธฐ์—ฌ๋ฅผ ํ•ด์ฃผ์‹  ๋ถ„๋“ค์ž…๋‹ˆ๋‹ค. ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค. ๐Ÿ™


๐Ÿ“ Table of Contents



What is this?

์˜ˆ๋น„ ๊ฐœ๋ฐœ์ž๋“ค ๋˜๋Š” ๊ฐœ๋ฐœ์ž๋“ค์˜ ๊ธฐ์ˆ  ๋ฉด์ ‘ ์ค€๋น„๋ฅผ ์œ„ํ•œ ์ž๋ฃŒ๋ฅผ ์ •๋ฆฌํ•ด๋†“์€ ์ €์žฅ์†Œ์ž…๋‹ˆ๋‹ค. ๊ฐœ๋ฐœ์ด๋ผ๋Š” ๋ถ„์•ผ๋ฅผ ๋ชจ๋‘ ๋‹ด์ง€๋Š” ๋ชปํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ์ € ๊ฐ€์ด๋“œ๋ผ์ธ์œผ๋กœ ์ฐธ๊ณ ํ•ด์ฃผ์‹œ๋ฉด ๊ฐ์‚ฌํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ๋˜ํ•œ ์ œ๊ฐ€ ๊ฐœ์ธ์ ์œผ๋กœ ๋ฉด์ ‘์„ ์ค€๋น„ํ•˜๋ฉด์„œ ์ •๋ฆฌํ•œ ๋‚ด์šฉ์ด๋ผ ์ž˜๋ชป๋œ ๋ถ€๋ถ„์ด ์žˆ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋Ÿฐ ๋ถ€๋ถ„๋“ค์— ๋Œ€ํ•ด์„œ๋Š” Pull Request or Issue๋กœ ์ฐธ์—ฌํ•ด์ฃผ์‹œ๋ฉด ์ •๋ง ๊ฐ์‚ฌํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ์ฃผ์ œ์™€ ๊ด€๋ จ๋œ ์ข‹์€ ์ฐธ๊ณ  ์ž๋ฃŒ๋ฅผ ์ถ”๊ฐ€ํ•˜๋Š” ๊ฒƒ๋„ ๊ฐ€๋Šฅํ•ฉ๋‹ˆ๋‹ค. ํ•ด๋‹น Repository ์—์„œ ํ•™์Šต์„ ํ•˜์‹œ๋‹ค๊ฐ€ ์ƒ๊ธฐ๋Š” ์งˆ๋ฌธ์€ Issue์— ์˜ฌ๋ ค์ฃผ์„ธ์š”!

์ทจ์ค€์ƒ ์—ฌ๋Ÿฌ๋ถ„์˜ ๊ฑด์Šน์„ ๊ธฐ์›ํ•ฉ๋‹ˆ๋‹ค ๐Ÿ‘

โœจ HELP

๐Ÿ™ HOW TO CONTRIBUTE
โญ๏ธ ์ด ์ €์žฅ์†Œ๋Š” PR ๊ณผ star ๋ฅผ ๋จน๊ณ  ์ž๋ž๋‹ˆ๋‹ค.



๋ฉด์ ‘์—์„œ ๋ฐ›์•˜๋˜ ์งˆ๋ฌธ๋“ค

ํ•ด๋‹น Issue ์—์„œ ์‹ค์ œ๋กœ ๋ฐ›์•˜๋˜ ๋ฉด์ ‘ ์งˆ๋ฌธ๋“ค์„ ๊ณต์œ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.


Part 1. ์ „์‚ฐ ๊ธฐ์ดˆ

๐Ÿ’ก ๊ฐœ๋ฐœ์ƒ์‹ Link

  • ๊ฐ์ฒด ์ง€ํ–ฅ ํ”„๋กœ๊ทธ๋ž˜๋ฐ์ด๋ž€ ๋ฌด์—‡์ธ๊ฐ€?
  • RESTFul API ๋ž€?
  • TDD ๋ž€ ๋ฌด์—‡์ด๋ฉฐ ์–ด๋– ํ•œ ์žฅ์ ์ด ์žˆ๋Š”๊ฐ€?
  • ํ•จ์ˆ˜ํ˜• ํ”„๋กœ๊ทธ๋ž˜๋ฐ์ด๋ž€?
  • MVC ํŒจํ„ด์ด๋ž€ ๋ฌด์—‡์ธ๊ฐ€?
  • Git ๊ณผ GitHub ์— ๋Œ€ํ•ด์„œ

๐Ÿ’ก ์ž๋ฃŒ๊ตฌ์กฐ Link

  • Array vs LinkedList
  • Stack and Queue
  • Tree
    • Binary Tree
    • Full Binary Tree
    • Complete Binary Tree
    • BST(Binary Search Tree)
  • Binary Heap
  • Red-Black Tree
    • ์ •์˜
    • ํŠน์ง•
    • ์‚ฝ์ž…
    • ์‚ญ์ œ
  • HashTable
    • hash function
    • Resolve Collision
      • Open Addressing
      • Separate Chaining
    • Resize
  • Graph
    • Graph ์šฉ์–ด ์ •๋ฆฌ
    • Graph ๊ตฌํ˜„
    • Graph ํƒ์ƒ‰
    • Minimum Spanning Tree
      • Kruskal algorithm
      • Prim algorithm

๐Ÿ’ก ๋„คํŠธ์›Œํฌ Link

  • GET, POST ๋ฐฉ์‹์˜ ์ฐจ์ด์ 
  • TCP 3-way-handshake
  • TCP ์™€ UDP ์˜ ์ฐจ์ด์ 
  • HTTP ์™€ HTTPS ์˜ ์ฐจ์ด์ 
    • HTTP ์˜ ๋ฌธ์ œ์ ๋“ค
  • DNS round robin ๋ฐฉ์‹
  • ์›น ํ†ต์‹ ์˜ ํฐ ํ๋ฆ„

๐Ÿ’ก ์šด์˜์ฒด์ œ Link

  • ํ”„๋กœ์„ธ์Šค์™€ ์Šค๋ ˆ๋“œ์˜ ์ฐจ์ด
  • ์Šค์ผ€์ค„๋Ÿฌ์˜ ์ข…๋ฅ˜
    • ์žฅ๊ธฐ ์Šค์ผ€์ค„๋Ÿฌ
    • ๋‹จ๊ธฐ ์Šค์ผ€์ค„๋Ÿฌ
    • ์ค‘๊ธฐ ์Šค์ผ€์ค„๋Ÿฌ
  • CPU ์Šค์ผ€์ค„๋Ÿฌ
    • FCFS
    • SJF
    • SRT
    • Priority scheduling
    • RR
  • ๋™๊ธฐ์™€ ๋น„๋™๊ธฐ์˜ ์ฐจ์ด
  • ๋ฉ€ํ‹ฐ์Šค๋ ˆ๋“œ
    • ์žฅ์ ๊ณผ ๋‹จ์ 
  • ํ”„๋กœ์„ธ์Šค ๋™๊ธฐํ™”
    • Critical Section
    • ํ•ด๊ฒฐ์ฑ…
  • ๋ฉ”๋ชจ๋ฆฌ ๊ด€๋ฆฌ ์ „๋žต
    • ๋ฉ”๋ชจ๋ฆฌ ๊ด€๋ฆฌ ๋ฐฐ๊ฒฝ
    • Paging
    • Segmentation
  • ๊ฐ€์ƒ ๋ฉ”๋ชจ๋ฆฌ
    • ๋ฐฐ๊ฒฝ
    • ๊ฐ€์ƒ ๋ฉ”๋ชจ๋ฆฌ๊ฐ€ ํ•˜๋Š” ์ผ
    • Demand Paging(์š”๊ตฌ ํŽ˜์ด์ง•)
    • ํŽ˜์ด์ง€ ๊ต์ฒด ์•Œ๊ณ ๋ฆฌ์ฆ˜
  • ์บ์‹œ์˜ ์ง€์—ญ์„ฑ
    • Locality
    • Caching line

๐Ÿ’ก ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค Link

  • ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค
    • ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ์ด์œ 
    • ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์„ฑ๋Šฅ
  • Index
    • Index ๋ž€ ๋ฌด์—‡์ธ๊ฐ€
    • Index ์˜ ์ž๋ฃŒ๊ตฌ์กฐ
    • Primary index vs Secondary index
    • Composite index
    • Index ์˜ ์„ฑ๋Šฅ๊ณผ ๊ณ ๋ คํ•ด์•ผํ•  ์‚ฌํ•ญ
  • ์ •๊ทœํ™”์— ๋Œ€ํ•ด์„œ
    • ์ •๊ทœํ™” ํƒ„์ƒ ๋ฐฐ๊ฒฝ
    • ์ •๊ทœํ™”๋ž€ ๋ฌด์—‡์ธ๊ฐ€
    • ์ •๊ทœํ™”์˜ ์ข…๋ฅ˜
    • ์ •๊ทœํ™”์˜ ์žฅ๋‹จ์ 
  • Transaction
    • ํŠธ๋žœ์žญ์…˜(Transaction)์ด๋ž€ ๋ฌด์—‡์ธ๊ฐ€?
    • ํŠธ๋žœ์žญ์…˜๊ณผ Lock
    • ํŠธ๋žœ์žญ์…˜์˜ ํŠน์„ฑ
    • ํŠธ๋žœ์žญ์…˜์˜ ์ƒํƒœ
    • ํŠธ๋žœ์žญ์…˜์„ ์‚ฌ์šฉํ•  ๋•Œ ์ฃผ์˜ํ•  ์ 
  • Statement vs PrepareStatement
  • NoSQL
    • ์ •์˜
    • CAP ์ด๋ก 
      • ์ผ๊ด€์„ฑ
      • ๊ฐ€์šฉ์„ฑ
      • ๋„คํŠธ์›Œํฌ ๋ถ„ํ•  ํ—ˆ์šฉ์„ฑ
    • ์ €์žฅ๋ฐฉ์‹์— ๋”ฐ๋ฅธ ๋ถ„๋ฅ˜
      • Key-Value Model
      • Document Model
      • Column Model

์ถ”๊ฐ€์ž๋ฃŒ


๐Ÿ’ก Design Pattern Link

  • Singleton

๐Ÿ’ก Algorithm (์•Œ๊ณ ๋ฆฌ์ฆ˜) Link

  • ์†์ฝ”๋”ฉ ๋ฐ ์ฝ”๋”ฉ ํ…Œ์ŠคํŠธ ๋Œ€๋น„
    => ๋Œ€๋ถ€๋ถ„์˜ ๋‚ด์šฉ์ด ์ฝ”๋“œ์ด๊ธฐ ๋•Œ๋ฌธ์— ๋ณ„๋„์˜ Java Algorithm Training Repository์— ์ €์žฅํ•ฉ๋‹ˆ๋‹ค.
  • ์ฝ”๋”ฉ ํ…Œ์ŠคํŠธ๋ฅผ ์œ„ํ•œ Tip
  • ๋ฌธ์ œ ํ•ด๊ฒฐ์„ ์œ„ํ•œ ์ „๋žต์  ์ ‘๊ทผ
  • Sorting Algorithm
  • Prime Number Algorithm

(๋ชฉ์ฐจ๋กœ ๋Œ์•„๊ฐ€๊ธฐ)




Part 2. Language

๐Ÿ’Ž Java Link

  • JVM ์— ๋Œ€ํ•ด์„œ / GC ์˜ ์›๋ฆฌ
  • Collection
  • Annotation
  • Generic
  • final
  • Overriding vs Overloading
  • Access Modifier
  • Wrapper class
  • Multi-Thread ํ™˜๊ฒฝ์—์„œ์˜ ๊ฐœ๋ฐœ

์ถ”๊ฐ€ ์ž๋ฃŒ


๐Ÿ’Ž JavaScript Link

  • JavaScript Event Loop
  • Hoisting
  • Closure
  • this ์— ๋Œ€ํ•ด์„œ
  • Promise

์ถ”๊ฐ€ ์ž๋ฃŒ

๐Ÿ’Ž Python Link

  • Generator
  • ํด๋ž˜์Šค๋ฅผ ์ƒ์†ํ–ˆ์„ ๋•Œ ๋ฉ”์„œ๋“œ ์‹คํ–‰ ๋ฐฉ์‹
  • GIL ๊ณผ ๊ทธ๋กœ์ธํ•œ ์„ฑ๋Šฅ ๋ฌธ์ œ
  • GC ์ž‘๋™ ๋ฐฉ์‹
  • Celery
  • PyPy ๊ฐ€ CPython ๋ณด๋‹ค ๋น ๋ฅธ ์ด์œ 
  • ๋ฉ”๋ชจ๋ฆฌ ๋ˆ„์ˆ˜๊ฐ€ ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ๋Š” ๊ฒฝ์šฐ
  • Duck Typing

์ถ”๊ฐ€ ์ž๋ฃŒ


(๋ชฉ์ฐจ๋กœ ๋Œ์•„๊ฐ€๊ธฐ)




Part 3. ๋ถ„์•ผ๋ณ„

๐Ÿ”ถ Front-End Link

  • ๋ธŒ๋ผ์šฐ์ €์˜ ์ž‘๋™ ์›๋ฆฌ
  • Document Object Model
    • Event bubbling and Capturing
    • Event delegation
  • CORS
  • ํฌ๋กœ์Šค ๋ธŒ๋ผ์šฐ์ง•
  • ์›น ์„ฑ๋Šฅ๊ณผ ๊ด€๋ จ๋œ Issues
  • ์„œ๋ฒ„ ์‚ฌ์ด๋“œ ๋ Œ๋”๋ง vs ํด๋ผ์ด์–ธํŠธ ์‚ฌ์ด๋“œ ๋ Œ๋”๋ง
  • CSS Methodology
  • normalize.css vs reset.css

์ถ”๊ฐ€ ์ž๋ฃŒ


๐Ÿ”ถ iOS Link

  • App Life Cycle
  • View Life Cycle
  • Delegate vs Block vs Notification
  • Memory Management
  • assign vs weak
  • Frame vs Bounds
  • ๊ธฐํƒ€ ์งˆ๋ฌธ

์ถ”๊ฐ€ ์ž๋ฃŒ


(๋ชฉ์ฐจ๋กœ ๋Œ์•„๊ฐ€๊ธฐ)




๊ทธ ์™ธ ์ข‹์€ ์ž๋ฃŒ





LICENSE

MIT