[CSæè¡é¢æ¥ 2] å£ãåããªãã¬ãŒãã£ã³ã°ã·ã¹ãã
yiyj10305235
OSã®æ žå¿æŠå¿µãçè§£ãã颿¥ã§å£é ã§èª¬æããèšç·ŽãŸã§ãå ±ã«è¡ãè¬çŸ©
å ¥é
Operating System, Tech Interview, computer-science
ãããã¯ãŒã¯ã®æ žå¿æŠå¿µãçè§£ãã颿¥ã§å£é ã§èª¬æããèšç·ŽãŸã§ãå ±ã«è¡ãè¬çŸ©
åè¬ç 637å
é£æåºŠ å ¥é
åè¬æé ç¡å¶é
åŠç¿ããåè¬è ã®ã¬ãã¥ãŒ
5.0
ìŽì í
ä»å¹Žäžã®è»¢è·ãç®æããŠãã·ãªãŒãºã®ããŒãããããé²ããŠããŸããåºç€ç¥èã颿¥å¯Ÿçã«ãšãŠã圹ç«ã¡ããã§ããããããšãããããŸãïŒïŒ
5.0
ê³µë¶íì
è¯ãè¬çŸ©ãããããšãããããŸãã ãããã¯ãŒã¯ã®åçãçŽ æ©ãåŠç¿ã§ããŠæ¬åœã«æè¬ããŠããŸããïŒïŒ
5.0
junghyun
詳ãã説æãšè±å¯ãªå³è§£è³æã§æ¬åœã«ãšãŠã圹ç«ã¡ãŸããããè¯ãè¬çŸ©ãããããäœã£ãŠãã ãããããããšãããããŸãã
ãããã¯ãŒã¯ã®æ žå¿æŠå¿µã®çè§£
æè¡é¢æ¥ã§å£é ã§èª¬æããèœå
æ·±æã質åãŸã§å¯Ÿçããå®è·µã¯ãŒã¯ããã¯PDF
1. æŠå¿µãæ··åããŠåçããŠããŸãå Žå
â颿¥å®ãªããžã§ã¯ãæåã®ç¹åŸŽã¯äœã§ããïŒ
ð¬ å¿åè SOLIDååã§ãããŸãSã¯âŠïŒçç¥ïŒâŠãªããžã§ã¯ãæåã®ç¹åŸŽïŒæœè±¡åãã«ãã»ã«åãç¶æ¿ãå€é æ§ïŒãš
ãªããžã§ã¯ãæåã®èšèšååïŒSOLIDïŒãæ··åããŠããç¶æ³ã§ãã
ããã¯åºç€æŠå¿µã®éªšçµã¿ãã§ããŠããªããšããå°è±¡ãäžããå¯èœæ§ããããŸãã
â颿¥å® TCPã®ç¹åŸŽã¯äœã§ããïŒ
ð¬ å¿é¡è ä¿¡é Œæ§ãä¿èšŒãããããã³ã«ã§ãã
â 颿¥å® ä¿¡é Œæ§ãä¿èšŒããã¡ã«ããºã ã¯äœã§ããïŒ
ð¬ å¿é¡è ããŒãšâŠâŠã€ãŸãâŠâŠå®å šã«è»¢éãããããã«ããâŠâŠãã®âŠâŠè¡šé¢çãªå®çŸ©ã ããç¥ã£ãŠãããåçã説æããæºåãã§ããŠããªãç¶æ ã§ãã
3-way handshakeãã·ãŒã±ã³ã¹çªå·ãACKãå転éããããŒå¶åŸ¡ãšæ··éå¶åŸ¡ã
äžã€ã®æµããšããŠç¹ãã£ãŠããªããã°ãæ·±æã質åã§å¿ ãè©°ãŸã£ãŠããŸããŸãã
â颿¥å® HTTPãšã¯äœã§ããïŒ
ð¬ å¿é¡è ããŒãšâŠãŠã§ãã§ããŒã¿ãããåãããâŠãã®ãããªâŠïŒéåžžã«éŠŽæã¿ã®ããæŠå¿µã§ãããããäžèšã§èª¬æããããšãããšèšèãç¶ããŸããã
ããã¯ç¥èã®äžè¶³ã§ã¯ãªããæŽçããŠè©±ããŠã¿ãçµéšã®äžè¶³ã§ãã
1â£ é¢æ¥å¯Ÿçãåºæºã«ãŸãšããCSããŒã
颿¥åã«å¿ ã確èªãã¹ãæŠå¿µãåçãäžç®æã«ãŸãšããè¬çŸ©è³æãšããŠæäŸããŸãã
åºç€ãåºãããšåæã«ã颿¥ã®çŽåãŸã§ç¹°ãè¿ãèŠè¿ããããã«æ§æããŸããã
åãªãèŠçŽã§ã¯ãªããå³è§£ãšåããããã説æãæ·»ããŠãéå°éå®¶ã§ãååã«çè§£ã§ããããã«ãªã£ãŠããŸãã
ã³ã³ãã¥ãŒã¿æ§æåŠã®è¬çŸ©è³æã®äŸ
2⣠ä»é²ïœã€ã³ã¿ãã¥ãŒç·Žç¿è³æã®æäŸ
颿¥ã§ã¯åã«ç¥ã£ãŠããããšããããç°¡æœã«èª¬æããèœåãã¯ããã«éèŠã§ãã
ããããäžäººã§æŽçããŠç·Žç¿ããã®ã¯ç°¡åã§ã¯ãªããé¢åãªäœæ¥ã§ãã
è¬çŸ©è³æã®æåŸã«ã1ã2æã§çããããã¬ãŒãã³ã°ãå ¥ãããŸãšããæéãçããããã«ããŸããã
ããŒã¿ããŒã¹è¬çŸ©ã®ä»é²ã®äŸ
3⣠深æã質åãŸã§å¯Ÿçãã æè¡é¢æ¥å®è·µã¯ãŒã¯ããã¯PDFæäŸ
ãæ¬åœã«ãã®è¬çŸ©ã ãã§è©±ãç·Žç¿ã¯ååã ãããïŒã
ãã®æ©ã¿ã®æ«ã«ã
æè¡é¢æ¥å®è·µã¯ãŒã¯ããã¯ãäœæããŸããã
äžäººã§ãå®éã®é¢æ¥ã®ããã«è©±ãç·Žç¿ãã§ããããã«èšèšããŸããã
ã¯ãŒã¯ããã¯ã®æ§æãæŽ»çšæ¹æ³ã¯ãè¬çŸ©ã®åé ã«ããã¯ãŒã¯ããã¯ç޹ä»åç»ã§è©³ããã確èªããã ããŸãã
ãªãã¬ãŒãã£ã³ã°ã·ã¹ãã ã¯ãŒã¯ããã¯ã®äŸ
4⣠ãã€ã§ãã©ãã§ã埩ç¿ã§ããCSåŠç¿ã¢ããª
è¬çŸ©ã§åŠãã æ žå¿æŠå¿µãå¿ããªãããã«ã
å°çšåŠç¿ã¢ãã€ã«ã¢ããªã䜵ããŠæäŸããŸãã
é倿éãã¡ãã£ãšããäŒæ©æéã«ã
ã¯ã€ãºãšæ žå¿æŠå¿µãç¹°ãè¿ãåŠç¿ããèªç¶ã«åŸ©ç¿ããããšãã§ããŸãã
1â£ è³æãããŠã³ããŒãããŠè¬çŸ©ãèããªãããæ žå¿æŠå¿µã身ã«ã€ããŠãã ããã
2⣠éèŠãªéšåã¯çŽæ¥ã¡ã¢ããŠãèªåã ãã®CSã€ã³ã¿ãã¥ãŒããŒããäœã£ãŠã¿ãŸãããã
3⣠æºåž¯é»è©±ã«ä¿åããŠãããééæéããããã³ã«çã埩ç¿ããŠãã ããã
颿¥ãæ§ãã
æéããªããªã â è¬çŸ©è³æã®ä»é² [ã€ã³ã¿ãã¥ãŒç·Žç¿]ã§çŽ æ©ã颿¥ã®æèŠãåŒãäžããŠãã ããã
æéããããªã â æè¡é¢æ¥å®è·µã¯ãŒã¯ããã¯ãšã¢ãã€ã«ã¢ããªã§ãå®éã®é¢æ¥ã®ããã«è©±ãç·Žç¿ã宿ãããŠãã ããã
éå°éå®¶ã»å°±æŽ»çã»è»¢è·æºåäžã®æ¹ãªã©ãæè¡é¢æ¥ãæ§ããCSã®åºç€ãèšèã§èª¬æã§ããããã«ãªãããæ¹
埩ç¿ãå¿ èŠãªå°æ»åŠç

å匷ããããšã¯ããããã©ã
èšå€§ãªCSã®ç¥èãæŽçãçŽãåæ°ãåºãŸãã
åãå°éæžã
èªã¿è¿ããªãã§ãã ããã
æ žå¿ã ãã確å®ã«æŽçããŸãã
CSãë§ë§íïŒéæ¹ã«æ®ããŠããïŒéå°éå®¶

æè¡é¢æ¥ã®æºåã
åããŠã§äœãã
æãã€ããã°ãããåãããŸãã
ããŒããããã«æ²¿ã£ãŠé²ãã°ã
äž»èŠãªCSã®æ žå¿æŠå¿µã ãã
éäžããŠåŠç¿ã§ããŸãã
æéããªãè»¢è·æºåäžã®æ¹

ãããããæéããããŸããã
颿¥ã«åºãCSã ãã
çŽ æ©ãæŽçãããã§ã
äžäººã§ãçŽ æ©ã埩ç¿
å¯èœãªè¬çŸ©è³æãš
ã€ã³ã¿ãã¥ãŒãã£ãã¿ãŒããããŸãã
æ¬åœã«åœ¹ç«ã€è¬çŸ©ã
ãã§ã«5å人以äžã®åè¬çã蚌æããŠããŸãã
âïžâïžâïžâïžâïž
1. èè
ãåè¬çã®ç«å Žã§ã©ãã»ã©èããæ©ãã ããäŒãã£ãŠããè¬çŸ©ïŒåŠç¿è
ã®çè§£ã®æµããèæ
®ããŠããããã§ãïŒ
2. èŠèŠè³æãšäŸé¡ãè±å¯ã§çè§£ãããã
3. ç¥èãåŠã¶éã以åã«åŠãã å
容ã«èšåããæãåºãããŠãããããšã§ç¥èãç¹ããŠããããç¥èãç¹ãããå
šäœåãèŠããŠããã
4. ç¥èã®æ·±ããæµ
ããªããã³ã³ãã¥ãŒã¿æ§æãèŽããŠããã«OSãèŽããŠããæäžã ããçžä¹å¹æãè¯ãã
5. ããªããïŒããªã䜿ãã®ãããšããçåãã¹ãããªè§£æ¶ããŠãããã
ps. èè
ã®æ¹ã«ã¯ç³ãèš³ãªããâŠèªåäžäººã ãã§ç¥ã£ãŠããããè¬çŸ©ã ã
-ããªãã¬ãŒãã£ã³ã°ã·ã¹ãã ãåè¬è©
âïžâïžâïžâïžâïž
çãè¬çŸ©æéã§ããã«ãããããããéèŠãªéšåã ãã確å®ã«èª¬æããŠãã ããã®ããšãŠãè¯ãã§ããå°ãçè«äžå¿ã®è¬çŸ©ãªã®ã§SQLã¯ãšãªæã¯ãããªãããšæã£ãŠããŸããããåºæ¬ææ³ãã¯ãšãªæã®æžãæ¹ãäžã€ãã€äŸãèŠããªããæããŠãã ãã£ãŠæ¬åœã«è¯ãã£ãã§ãããã®åŸã®ãžã§ã€ã³ãæ£èŠåããã©ã³ã¶ã¯ã·ã§ã³ãã€ã³ããã¯ã¹ãããŒã¿æé©åãã»ãã¥ãªãã£ãŸã§éåžžã«å å®ããŠãããä»ã®ææè¬çŸ©ã¯ãŸã åè¬ããŠããŸããããæåŸã®è¬çŸ©ã®ä»é²ãã€ã³ã¿ãã¥ãŒç·Žç¿ãšããã¿ã€ãã«ã§ãçŽæ¥åé¡ãšåçãæç€ºããŠãã ãã£ãã®ã§ãç¬åŠãç·Žç¿ãããã®ã«ãæé©ã§ãããéäžããŠèŽãã°è¬çŸ©æéã¯ããã»ã©é·ãããããªãã®ã§ãäœåºŠãç¹°ãè¿ãèŠèŽããããšæããŸããããããšãããããŸãã
-ãããŒã¿ããŒã¹ãåè¬è©
âïžâïžâïžâïžâïž
æ žå¿å 容ããã£ãããšè«ççãªæµãã§åããããã説æããŠãã ãã£ãã®ã§ãè³ææ§é ãçŽ æ©ãæŽçããã®ã«åœ¹ç«ã¡ãŸãããçŽ æŽãããè¬çŸ©ãããããšãããããŸãã
-ãè³ææ§é ãåè¬è©
âïžâïžâïžâïžâïž
ããâŠæ¬åœã«æé«ã§ãâŠ;;;; ãéã貯ããŠããŒããããã§å šéšè²·ããªããã§ãããããã¹ããªã³ã°ã®æ¹ãè¬çŸ©ãããããèãããããæ°ã«ãªããŸããããã«è²·ããŸãã
-'Javaãšãªããžã§ã¯ãæå' åè¬è©
âïžâïžâïžâïžâïž
1æ¥æéãåã£ãŠãJavaScriptã®äž»èŠãªæŠå¿µãäžåºŠã«æŽçã§ããè¬çŸ©ã§ãïŒ é¢æ¥åã®ãªãã€ã³ãçšãšããŠæé©ã§ããð
-'JavaScript' åè¬ã¬ãã¥ãŒ
âïžâïžâïžâïžâïž
ã³ã³ãã¥ãŒã¿å·¥åŠã®éå°æ»è ãªã®ã§ãCSç¥èã®äžã§ãç¹ã«ã³ã³ãã¥ãŒã¿æ§æãšãªãã¬ãŒãã£ã³ã°ã·ã¹ãã ã®å匷ãã©ããã¹ããæ©ãã§ããŸããããé©åãªåéã§è² æ ãªãåŠç¿ããããšãã§ããé人ã«å®¶åºæåž«ãããŠããã£ãŠãããããªæèŠã§ãšãŠãè¯ãã£ãã§ãããªãã¬ãŒãã£ã³ã°ã·ã¹ãã ã®è¬çŸ©ãåè¬ããäºå®ã§ãããæ¥œãã¿ã§ããããããšãããããŸããïŒ
-ãã³ã³ãã¥ãŒã¿æ§æãåè¬ã¬ãã¥ãŒ
éå°æ»è
åºèº«ã®ç§ã¯ãåããŠéçºè
ãšããŠã®å°±è·ãæºåããŠããéãã¢ã«ãŽãªãºã ãšã³ãŒãã£ã³ã°ãã¹ãã ãã«æ²¡é ããŠããŸããã
ãããªãã«èªä¿¡ãã€ããã»ãšãã©ã®ã³ãŒãã£ã³ã°ãã¹ãã«åæ Œããããã«ãªããŸããããæ¬¡ã®é¢éã§ããæè¡é¢æ¥ã§äœåºŠãèŠæ¯ããªããŸãããäœãåé¡ã ã£ãã®ã§ããããïŒããã¯ãŸãã«CSïŒã³ã³ãã¥ãŒã¿ãµã€ãšã³ã¹ïŒç¥èã®æ¬ åŠã§ããã
ç§ã¯åºç€ïŒCSç¥èãããã°ã©ãã³ã°èšèªãªã©ïŒã«å¯Ÿããæžæã誰ãããããç¥ã£ãŠããŸããæ°å€ãã®è³æãç¬åŠã§æãäžããªããèªåãªãã®ããŠããŠãç©ã¿äžããæçµçã«ãœãŠã«å€§åŠã忥ããåŸãð§ð»âð» ã«ã«ãªéçºè ãšããŠåããŠããŸãã
åäŸã®é ããæ§ã ãªè³æãçµã¿åãããåæ§æããŠãèªåã ãã®åäžåããŒãããäœãããšã«ãããŠã誰ãããèªä¿¡ããããŸããããã®è¬çŸ©ã¯ããŸãã«ãã®ãã¹ãŠã®ããŠããŠãšæ ç±ã蟌ããããç§å¯ã®ããŒãã§ãã
ãã©ãŠã¶ã«URLãå ¥åãããšæ£ç¢ºã«äœãèµ·ããã®ãã颿¥ã§èª¬æããã®ãäžå®ãªãïŒ
TCPæ¥ç¶ã¯3-wayãªã®ã«ãªãè§£é€ã¯4-wayãªã®ã§ããããïŒ
ãã®è¬çŸ©ã§åŠã¶ç®æ¬¡ãšããŒã¯ãŒãã§ãã
ç¥ããªãããŒã¯ãŒããããã°ããã®æ©äŒã«ãã£ãããšçè§£ããŠãããŸãããã
ãããã¯ãŒã¯ã®åºç€
ãããã¯ãŒã¯ã®å®çŸ©ãšæ§æãLANãšWANã
ããŒã¿è»¢éæ¹åŒã
OSI 7éå±€ãšTCP/IPéå±€
ã¢ããªã±ãŒã·ã§ã³å±€
HTTP,
DNS
ãã©ã³ã¹ããŒãå±€
TCPãšUDPã3-Way Handshakeã
RDT ãããã³ã«ã
TCPã®ãããŒå¶åŸ¡ / æ··éå¶åŸ¡
ãããã¯ãŒã¯å±€
ã«ãŒã¿ãŒãIPããµãããããã¹ã¯ã
NAT,
DHCP
ããŒã¿ãªã³ã¯å±€
ã€ãŒãµããããCSMA/CDã
ã¹ã€ããã
MACã¢ãã¬ã¹ã
ARP
ãããã¯ãŒã¯å šäœã®æµã
ã¯ã©ã€ã¢ã³ãâãµãŒããŒéã®ããŒã¿éåä¿¡ããã»ã¹
ãããã¯ãŒã¯ã»ãã¥ãªãã£ãšå®å
ã»ãã¥ãªãã£ã®3倧èŠçŽ ã
察称éµãšé察称éµã
HTTPS, SSL/TLS,
ãã¡ã€ã¢ãŠã©ãŒã«ãVPNããããã·ãCDNãCORS
[ä»é²] ã€ã³ã¿ãã¥ãŒç·Žç¿
åç圢åŒã§äž»èŠãªæŠå¿µãããäžåºŠåŸ©ç¿
OSI 7éå±€ã«åŸã£ãŠéå±€å¥ã«æŠå¿µãæŽç
ããŒã¿ãã¯ã©ã€ã¢ã³ããããµãŒããŒãŸã§ç§»åããå®éã®æµããäžå¿ã«åŠç¿
LAN/WANãDNSãHTTPãTCPãIPãNATãªã©ã®äž»èŠæŠå¿µãããã€ç»å Žããã®ããçè§£
ãããã¯ãŒã¯å šäœã®æµãã®èª¬æ
è€éã§èãæ £ããªããããã¯ãŒã¯çšèªããåãªãæèšã§ã¯ãªããçŽæçãªå³åŒãšèŠèŠè³æãéããŠãç°¡åã«çè§£ããé·ãèšæ¶ã«æ®ããããµããŒãããŸãã
TCP 3-wayãã³ãã·ã§ã€ã¯ã4-wayãã³ãã·ã§ã€ã¯ãNATã®åäœæ¹åŒãTLSãã³ãã·ã§ã€ã¯ãªã©ãæŠå¿µã®æ žå¿çãªåçãå³è§£ã§æç¢ºã«ææ¡ããããšãã§ããŸãã
TCP 3-way handshake ã®éçš
NATã®æŠå¿µããã³åç
TCPã®æ··éå¶åŸ¡ã¢ã«ãŽãªãºã
HTTP/HTTPSã察称éµ/é察称éµãIPãDNSãTCPãªã©ãéçºè ããŠã§ããµãŒãã¹ãã¢ããªã±ãŒã·ã§ã³ã®éçºæã«æãé »ç¹ã«ééããçè§£ããŠããã¹ãæ žå¿çãªãããã¯ãŒã¯ã®æŠå¿µãæ·±ãæ±ããŸãã
åæŠå¿µãå®éã®éä¿¡éçšã§ã©ã®ããã«åäœããã©ã®ãããªåœ¹å²ãšéèŠæ§ãæã€ã®ããå®è³ªçãªäŸãšãšãã«èª¬æããããšã§ãçè«ãè¶ ããå®åèœåã匷åããŸãã
ããã«ããããããã¯ãŒã¯é¢é£ã®ãã©ãã«ãçºçããéã«åå ãææ¡ãã解決çãæš¡çŽ¢ããããã«å¿ èŠãªåºç€ç¥èããã£ãããšåºããããšãã§ããŸãã
HTTPã®èª¬æ
IPã®éå±€åãå¿ èŠãªçç±
æ åãæ¢ãŸã£ãŠããå Žåã¯ãåèªã¿èŸŒã¿ããé¡ãããŸã :)
ãããã¯ãŒã¯ã®å šäœçãªæµãã®èª¬æ
TCPã®RDTã«ã€ããŠã®èª¬æ
æäŸããåŠç¿è³æã®åœ¢åŒïŒPDF
åŠç¿å¯Ÿè±¡ã¯
誰ã§ãããïŒ
CSã®å匷ãåããŠã§ãäœããæãã€ããã°ãããåãããªãéå°æ»è
æè¡é¢æ¥ã®åã«CSïŒã³ã³ãã¥ãŒã¿ãµã€ãšã³ã¹ïŒã®æŠå¿µãæŽçããå¿ èŠãããå°æ»ç
æè¡é¢æ¥ãæ§ããæéããªãè»¢è·æºåè
ã€ã³ãã©ã³èªèšŒ
ãã£ãªã¢èªèšŒ
5,944
åè¬ç
248
åè¬ã¬ãã¥ãŒ
32
åç
4.9
è¬åº§è©äŸ¡
7
è¬åº§
åŠæŽããã³çµæŽ
ãœãŠã«å€§åŠæ ¡ 忥
çŸã«ã«ãªãµãŒããŒéçºè
è¬çŸ©ç޹ä»
CSã®æŠå¿µã颿¥ã§èšèã«ããŠèª¬æã§ãããããµããŒããã
èšèãåºããCSã·ãªãŒãºãå¶äœããŠããŸãã
è¬çŸ©å²åŠ
ã³ã³ãã¥ãŒã¿ãŒéå°æ»è
ãšããŠéçºãå§ããCSã®åºç€ããæè¡é¢æ¥ãŸã§èªãæŽçããªãããå€ãã®è©Šè¡é¯èª€ãçµéšããŸããããã®éçšã§ç©ã¿äžããåŠç¿æ³ãšæŠå¿µæŽçã®ããŠããŠãããšã«ãå®åã颿¥ã§å¿
ãçŽé¢ããæ žå¿çãªæŠå¿µããå³ã䜿ã£ãŠç°¡åã«çè§£ã§ãããããªã³ã³ãã³ããå¶äœããŠããŸãã
ãåœæã®èªåã«å¿
èŠã ã£ãè¬çŸ©ãäœã£ãŠããŸãã
ããã°
yiyj1030.tistory.com
â CSãã¢ã«ãŽãªãºã ãå®åã®æŠå¿µãåãããããæŽçããæè¡ããã°ãéå¶äž
ãåãåãã
yiyj1030@gmail.com
å šäœ
41ä»¶ â (3æé 50å)
è¬åº§è³æïŒãããããããïŒ:
å šäœ
26ä»¶
5.0
26ä»¶ã®åè¬ã¬ãã¥ãŒ
åè¬ã¬ãã¥ãŒ 9
â
å¹³åè©äŸ¡ 5.0
åè¬ã¬ãã¥ãŒ 11
â
å¹³åè©äŸ¡ 4.5
åè¬ã¬ãã¥ãŒ 5
â
å¹³åè©äŸ¡ 5.0
5
ä»å¹Žäžã®è»¢è·ãç®æããŠãã·ãªãŒãºã®ããŒãããããé²ããŠããŸããåºç€ç¥èã颿¥å¯Ÿçã«ãšãŠã圹ç«ã¡ããã§ããããããšãããããŸãïŒïŒ
ããããšãããããŸãã é¡ãããã¹ãŠå¶ãããå¿æŽããŠããŸãïŒ
åè¬ã¬ãã¥ãŒ 4
â
å¹³åè©äŸ¡ 5.0
åè¬ã¬ãã¥ãŒ 26
â
å¹³åè©äŸ¡ 5.0
ç¥èå ±æè ã®ä»ã®è¬åº§ãèŠãŠã¿ãŸãããïŒ
åãåéã®ä»ã®è¬åº§ãèŠãŠã¿ãŸãããïŒ