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PART ¥° Á¤º¸Åë½Å [10Á¡ ¼­ºê³ëÆ®] 1-1 OSI 7 Layer¿Í TCP/IP LayerÀÇ ºñ±³ 2 1-2 Data Link LayerÀÇ ±â´É 8 1-3 Åë½Å¸Á ÅäÇ÷ÎÁö(Topology) Á¾·ù ¹× Ư¡ 14 1-4 ´ÙÁßÈ­ (Multiplexing) ¹× ´Ù¿øÁ¢¼Ó (Multiple Access) ±â¼ú 16 1-5 LACP (Link Aggregation Control Protocol) 20 1-6 MPTCP (Multi-Path Transmission Control Protocol) 30 1-7 SCTP (Stream Control Transport Protocol) 32 1-8 QUIC (Quick UDP Internet Connection) 36 1-9 IP ÁÖ¼Ò ºÎÁ· ÇØ°á¹æ¾È 4°¡Áö ÀÌ»ó 38 1-10 ICMPv6 40 1-11 MLD (Multicast Listener Discovery) 42 1-12 IGMP (Internet Group Management Protocol) 44 1-13 ¸ÖƼij½ºÆÃ ÇÁ·ÎÅäÄÝ 46 1-14 Segment Routing 50 1-15 IEEE 802.11 MAC 52 1-16 SDR (Software Defined Radio) 56 1-17 ¿¡·¯Á¦¾î 63 1-18 TCP Sliding Window 65 1-19 È帧Á¦¾î 67 1-20 TCP È¥ÀâÁ¦¾î 69 1-21 IPv6 ±â´É 74 1-22 IPv6 Ç¥Çö¹æ½Ä°ú ÁÖ¼Ò Á¾·ù 76 1-23 IPv4¿¡¼­ IPv6·Î Àüȯ±â¼ú 80 1-24 SNMP (Simple Network Management Protocol) 8 1-25 NMS (Network Management System) 86 1-26 TWAMP (Two Way Active Measurement Protocol) 88 1-27 WLAN (IEEE 802.11) 92 1-28 WiFi 7 (EHT: Extremely High Throughput) 95 1-29 WPAN (Wireless Personal Area Network) 101 1-30 ZigbeeÀÇ ³×Æ®¿÷ ±¸¼º ¹æ½Ä 105 1-31 6LoWPAN (IPv6 over Low-Power WPAN) 110 1-32 ű׸®½º (Tagless) 112 1-33 WSN ¶ó¿ìÆÃ ÇÁ·ÎÅäÄÝ 114 1-34 ¸ÅÅÍ 1.3 (Matter 1.3) 116 1-35 IEEE 802.3bt 120 1-36 WPT (Wireless Power Transfer)¿Í PoE (Power Over Ethernet) 124 1-37 SD-WAN (Software Defined-Wide Area Network) 126 1-38 IEEE 1588v2 128 1-39 NTP (Network Time Protocol) µ¿ÀÛ Mode 132 1-40 C-V2X (cellular-vehicle-to-everything) 134 1-41 C-ITS¿Í LTE-V2X 136 1-42 ¿¡³ÊÁö È¿À² ÀÌ´õ³Ý (IEEE 802.3az)ÀÇ Çʿ伺°ú µ¿ÀÛ ¿ø¸® 138 1-43 QoS (Quality of Service) º¸Àå±â¼ú 140 1-44 QoS ÆÄ¶ó¹ÌÅÍ 143 1-45 VLAN (Virtual Local Area Network) 148 1-46 VxLAN 150 1-47 ¸¶ÀÌÅ©·Î ¼­ºñ½º 154 1-48 Çൿ ÀÎÅÍ³Ý (Internet of Behaviors) 156 1-49 RAID ·¹º§ 0, 1, 5, 1+0 158 1-50 ¿§Áö (Edge)ÄÄÇ»ÆÃ°ú Æ÷±×(Fog)ÄÄÇ»ÆÃÀÇ ºñ±³ 163 1-51 ½ºÄÉÀÏ ¾÷°ú ½ºÄÉÀÏ ¾Æ¿ô ¼­¹ö Áõ¼³¹æ½Ä 165 1-52 WebRTC (Real-Time Communication) 167 1-53 SOAP (Simple Object Access Protocol) 169 1-54 HTML5 (HyperText Markup Language 5) 171 1-55 ChatGPT-40 176 1-56 SLM (Small Language Model)°ú LLM (Large Language Model) 178 1-57 HBM (High Bandwidth Memory)°ú PIM(Process In Memory) ºñ±³ 180 1-58 On-Device AI 182 1-59 Prompt Engineering 184 1-60 RAG (Retrieval-Augented Generation) 186 1-61 ¿ÀÅäºê¶ó¿ì¡ (Auto Browsing) 188 1-62 ¼Ò¹ö¸° (Sovereign) AI 189 1-63 Foundation Model 190 1-64 Data CenterÀÇ ¾×ħ ³Ã°¢±â¼ú 191 [25Á¡ ¼­ºê³ëÆ®] 1-1 TCP¿¡¼­ÀÇ È帧Á¦¾î¸¦ À§ÇÑ Sliding Window ¹æ½Ä°ú È¥ÀâÁ¦¾î ¹æ½Ä¿¡ ´ëÇÏ¿© ¼³¸íÇϽÿÀ 195 1-2 IPv6ÀÇ ÁÖ¿ä Æ¯Â¡°ú IPv4¿¡¼­ IPv6·ÎÀÇ Àüȯ ±â¼úÀ» ¼³¸íÇϽÿÀ 199 1-3 200.100.10.0/24 ³×Æ®¿öÅ© ÁÖ¼Ò¸¦ ÀÌ¿ëÇÏ¿© È£½ºÆ®°¡ 30°³ÀÎ ¼­ºê³ÝÀ¸·Î ¼³°èÇϽÿÀ 207 1-4 TCP/IP °èÃþ±¸Á¶ ¹× TCP, UDP, SCTPÀÇ Â÷ÀÌÁ¡ ¼³¸í 211 1-5 SNMP¿Í TWAMP¸¦ ºñ±³ ¼³¸íÇϽÿÀ 215 1-6 IPv4 »ç¼³ IPÁÖ¼Ò °ü·ÃÇÏ¿© ´ÙÀ½ »çÇ×À» ¼³¸íÇϽÿÀ 219 1-7 NMS(Network Management System)°ú SDN(Software Defined Network)À» ºñ±³ ¼³¸íÇϽÿÀ 223 1-8 ¸ÖƼij½ºÆÃ ¶ó¿ìÆÃ ÇÁ·ÎÅäÄÝÀÎ PIM-DM, PIM-SM, PIM-SSM¿¡ ´ëÇÏ¿© »óÈ£ ºñ±³ÇϽÿÀ 231 1-9 QoS º¸Àå±â¼ú¿¡ ´ëÇÏ¿© ¼³¸íÇϽÿÀ 235 1-10 QoS Æ®·¡ÇÈ °ü¸®±â¼ú¿¡¼­ Å¥°ü¸® (Queue Management), Æ®·¡ÇÈ ½¦ÀÌÇÎ(Traffic Shaping), ¼ö¶ôÁ¦¾î(Admission Control), È¥ÀâÁ¦¾î(Congestion Control)¿¡ ´ëÇÏ¿© ±â¼úÇϽÿÀ. 239 1-11 ½ºÀ§Ä¡ ³×Æ®¿÷¿¡¼­ Æ®·¡ÇÈ LoopingÀÌ ¹ß»ýÇÏÁö ¾Êµµ·Ï ¿¹¹æÇÏ´Â ¹æ¾È¿¡ ´ëÇØ ¼­¼úÇϽÿÀ 247 1-12 Åë½Å¸Á ¼³ºñÀÇ ÀÌÁßÈ­ ±¸Á¶¿Í LACP(Link Aggregation Control Protocol)¿¡ ´ëÇÏ¿© ±â¼úÇϽÿÀ 251 1-13 Ŭ¶ó¿ìµå ÄÄÇ»ÆÃ ¼­ºñ½º¿Í ¼­ºñ½ºÀÇ Ç°Áú ¼º´É ±âÁØÀ» ¼³¸íÇϽÿÀ 255 1-14 ¹«¼±·£ ¹ßÀü°úÁ¤¿¡ ´ëÇØ ¼³¸í ÇϽÿÀ 259 1-15 ÀÎÁö ¹«¼±Åë½Å(Cognitive Radio)ÀÇ °³³ä°ú µ¿ÀÛ ¿ø¸®, Çٽɱâ¼ú¿¡ ´ëÇÏ¿© ¼³¸íÇϰí, IEEE 802.15.3 UWB(Ultra Wide Band)¿Í ºñ±³ ¼³¸íÇϽÿÀ 263 1-16 ºñÁ¢ÃË Åë½Å±â¼úÀÎ NFC(Near Field Communication)¿Í RFID(Radio Frequency Identification) ±â¼úÀ» ¼³¸íÇϽÿÀ 267 1-17 Áö´ÉÇü ÃÊ¿¬°á¸Á°ú ISP »ç¾÷ÀÚ Àå¾Ö¿¡ µû¸¥ ÃÊ¿¬°á »çȸÀÇ Ãë¾àÁ¡¿¡ ´ëÇØ ¼³¸íÇÏ°í ±â¼úÀÚ °üÁ¡ÀÇ ´ëÃ¥À» ¼³¸íÇϽÿÀ 271 1-18 Åë½Å ´ÙÁßÈ­ÀÇ Á¾·ù ¹× µ¿±â½Ä TDM°ú Åë°èÀû TDM ºñ±³ 275 1-19 Data Center°¡ È®»êµÊ¿¡ µû¶ó ¹ß»ýµÇ´Â ¹®Á¦Á¡°ú ´ëÀÀ¹æ¾È¿¡ ´ëÇØ ¼­¼úÇϽÿÀ 279 1-20 LLM ¸ðµ¨ Ȱ¿ë ±â¼úÀÎ Prompt Engineering, RAG(Retrieval-Augmented Generation), Fine Tuning ±â¼úÀ» ¼³¸íÇϽÿÀ 283 1-21 SDDC (Software-Defined Data Center)¿¡ ´ëÇØ ¼­¼úÇϽÿÀ 287 1-22 ³×Æ®¿öÅ© ¼³°è½Ã Broadcast DomainÀ» ÀûÀýÈ÷ ±¸ºÐÇØ¾ß ÇÏ´Â ÀÌÀ¯¿¡ ´ëÇØ ¼³¸íÇϰí Broadcast DomainÀ» ±¸ºÐÇØ ±¸ÃàÇÏ´Â ¹æ¹ý°ú ±â¼úÀ» ¼³¸í 291 PART ¥± ±¤Åë½Å - º¸¾È [10Á¡ ¼­ºê³ëÆ®] 2-1 ±¤½ÅÈ£ÀÇ µµÆÄ¿ø¸® 296 2-2 ±¤¼¶À¯ÀÇ ±¤ÇÐÀû ÆÄ¶ó¹ÌÅÍ 299 2-3 ±¤¼¶À¯ÀÇ ±¸Á¶Àû ÆÄ¶ó¹ÌÅÍ 301 2-4 ¿µ ºÐ»êÁ¡ 310 2-5 NZ-DSF (Non-Zero Dispersion Shift Fiber) 312 2-6 SI(Step Index)¿Í GI(Grade Index) 315 2-7 ±¤ÄÉÀ̺íÀÇ º¸¾ÈÃë¾àÁ¡ 318 2-8 FWM (Four Wave Mixing)°ú IMD ºñ±³ 322 2-9 EDFA (Erbium Doped Fiber Amp) 324 2-10 ÄÚÈ÷¾î·±Æ® (Coherent) ±¤º¯Á¶ 330 2-11 ±¤ Åë½Å¿ë ±¤¿ø (Optical Light Source) 334 2-12 DWDM (Dense Wavelength Division Multiplexing) 337 2-13 IP-MPLS Åë½Å¹æ½Ä 341 2-14 OXC (Optical Cross Connect) 347 2-15 POTN (Packet Optical Transport Network) 351 2-16 OTDR (Optical Time Domain Reflector) ¼º´ÉÁö¼ö 353 2-17 ±¤¼¶À¯ Á¢¼Ó ¹æ¹ý ¹× Á¢¼Ó¼Õ½Ç ¿øÀÎ 355 2-18 ±¤¼¶À¯ Á¢¼Ó±â¼ú Á¾·ù 357 2-19 CC (Common Criteria) ÀÎÁõ 361 2-20 º¸¾ÈÀûÇÕ¼º °ËÁõÁ¦µµ 363 2-21 °³ÀÎÁ¤º¸ ¿µÇâÆò°¡ (PIA, Privacy Impact Assessment) 366 2-22 ISMS-P (Information Security Management System Privacy) 368 2-23 IoT º¸¾È ÀÎÁõÁ¦µµ (CIC, Certification of IOT Cybersecurity) 371 2-24 802.1x 373 2-25 °ø°³Å° ±â¹Ý±¸Á¶ (PKI) 375 2-26 µ¿Çü¾ÏÈ£ (Homomorphic encryption) 377 2-27 ¸Þ½ÃÁöÀÎÁõÄÚµå¿Í ÀüÀÚ¼­¸í 379 2-28 »ç¿ëÀÚ ½Äº°°ú ÀÎÁõ 381 2-29 FIDO (Fast Identify On-Line) 383 2-30 ºÐ»ê ½Å¿øÁõ¸í (Decentralized Identity) 387 2-31 ¾çÀÚ³»¼º ¾ÏÈ£ (PQC, Post-Quantum Cryptography) 389 2-32 QKD (Quantum Key Distribution) 391 2-33 Å¥ºñÆ® (Qubit) 393 2-34 DRM (Digital Rights Management), DLP(Data Loss Prevention)ÀÇ ºñ±³ 400 2-35 WIPS (Wireless Intrusion Prevention System) 402 2-36 VPN (Virtual Private Network) 404 2-37 IPsec (Internet Protocol Security) 407 2-38 SSL/ TLS (Secure Sockets Layer/ Transport Layer Security) 409 2-39 IPSec VPN 412 2-40 SSL VPN 414 2-41 Cyber À§Çù ÀÎÅÚ¸®Àü½º (CTI, Cyber Threat Intelligence) 421 2-42 ESM, SIEM, SOAR 423 2-43 Á¦·Î Æ®·¯½ºÆ® º¸¾È¸ðµ¨ 427 2-44 ¸ÁºÐ¸® (Network Segmentation) 429 [25Á¡ ¼­ºê³ëÆ®] 2-1 ±¤¼¶À¯¿¡ ´ëÇÑ µµÆÄ¿ø¸®¿Í ±¤ÇÐÀû ÆÄ¶ó¹ÌÅÍ¿¡ ´ëÇØ ¼³¸íÇϽÿÀ. 431 2-2 PON°ú AONÀ» ºñ±³ ¼³¸íÇϽÿÀ 435 2-3 ±¤½ÅÈ£ Àü¼Û½Ã ¼Õ½Ç°ú ºÐ»ê¿¡ ´ëÇÏ¿© ¼­¼úÇϽÿÀ 439 2-4 Single Mode FiberÀÇ ¼±Çü ¹× ºñ¼±Çü Àü¼ÛƯ¼ºÀ» ¼³¸íÇϰí, Àå°Å¸® ´ë¿ë·® Àü¼Û¹æ¾ÈÀ» ¼³¸íÇϽÿÀ 447 2-5 Åë½Å¿¡¼­ÀÇ ºñ¼±ÇüÇö»ó¿¡ ´ëÇØ ¼³¸íÇϰí, IMD(Intermodulation Distortion)¿Í FWM (Four Wave Mixing)À» ºñ±³ÇÏ¿© ¼³¸íÇϽÿÀ 451 2-6 DWDMÀÇ ±â´É ¼³¸í°ú ¼º´É ¿­È­¿äÀο¡ ´ëÇÏ¿© ¼³¸íÇϽÿÀ 455 2-7 ±¤Åë½Å ¼Û¼ö½Å ±¸Á¶ ¹× Åë½Å ¸µÅ© Àü¼Û¿ë·® Áõ´ë¹æ¾ÈÀ» 3°¡Áö ÀÌ»ó Á¦½ÃÇϽÿÀ 459 2-8 ITU-T OTN(Optical Transport Network)ÀÇ °èÀ§(Hierachy)¿Í ÇÁ·¹ÀÓ ±¸Á¶¿¡ ´ëÇØ ¼³¸íÇϽÿÀ 463 2-9 ±¤ÄÉÀÌºí ¼³Ä¡ ÀÛ¾÷ ½Ã ±¤ÄÉÀ̺íÀÇ Á¢¼Ó, Æ÷¼³ ¹æ¹ý°ú ÀÛ¾÷ ½Ã À¯ÀÇ »çÇ׿¡ ´ëÇØ ¼³¸íÇϽÿÀ 467 2-10 Á¤º¸Åë½Å¸Á ¸Á ºÐ¸®¿¡ ´ëÇÏ¿© ¼³¸íÇϽÿÀ 472 2-11 ³×Æ®¿öÅ© º¸¾È ±â¼úÀ» °èÃþº°·Î ºÐ·ùÇϰí, º¸¾È´ëÃ¥À» ³íÇϽÿÀ 476 2-12 °¡»ó»ç¼³¸Á ±¸Çö±â¼ú ¹× ÁÖ¿ä ÇÁ·ÎÅäÄÝ¿¡ ´ëÇØ ±â¼úÇϽÿÀ 480 2-13 ½Ã½ºÅÛ º¸¾ÈÀ» À§ÇÑ º¸¾ÈÀåºñÀÇ Á¾·ù¿Í º¸¾È ÅëÇÕ°üÁ¦ÀÇ Çʿ伺°ú ¹æ¾È¿¡ ´ëÇØ ¼³¸íÇϽÿÀ 484 2-14 CAS(Conditional Access System)¿Í DRM(Digital Right Management)À» ºñ±³ ¼³¸íÇϽÿÀ 488 2-15 ºí·ÏüÀÎÀÇ ¿ø¸®¿Í º¸¾ÈÀ§Çù¿¡ ´ëÇØ ¼­¼úÇϽÿÀ 492 2-16 DDoS (Distributed Denial of Service) °ø°Ý±â¹ý ±â¼ú ¹× ´ëÀÀ¹æ¹ý¿¡ ´ëÇÏ¿© ¼­¼úÇϽÿÀ 496 2-17 ¾ÏÈ£¿Í ÀÎÁõÀÇ °³³äÀ» ¼³¸íÇϰí, ¸Þ½ÃÁö ÀÎÁõÄÚµå¿Í µðÁöÅÐ ¼­¸í¿¡ ´ëÇÏ¿© ±â¼úÇϽÿÀ 500 2-18 ChatGPT (êGPT)ÀÇ º¸¾È À§Çù°ú ´ëÀÀ ¹æ¾È 504 PART ¥² À̵¿ - 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