resiliency, 316-317 hardening, 199 G.fast technology, 229, 232-233 technology, 185 Gigabit Passive Optical Networking (GPON), 17, 223, 229 access technology, 241 GIS, see Graphical information systems Git, 393 IaaS layer, see Infrastructure as a Service layer GitHub, 393 IAM approach, see Identity and access management Global routing table, 27 approach Global Technology Operations Center (GTOC), 334, 335 I-CSCF, see Interrogating CSCF GNU project software, 395 Identity Google, 143 ecosystem, 191-192 Google remote procedure call (gRPC), 366 management, 16 GPON, see Gigabit Passive Optical Networking Identity and access management approach (IAM GPUs, see Graphical processing units approach), 189, 191 Graphical information systems (GIS), 119 client application identity, 193 Graphical processing units (GPUs), 52 end user identities, 192-193 Graphical user interface (GUI), 115, 117-119,202 identity ecosystem, 191-192 "Graybox," 256 resource identity, 193 "Gray" optics, see Standard wavelength IDS, see Instruction detection system; Intrusion detection GRE, see Generic routing encapsulation system gRPC, see Google remote procedure call IETF, see Internet engineering task force GTOC, see Global Technology Operations Center IGP, see Interior Gateway Protocol "Guard rails," 125 IM, see Infrastructure management GUI, see Graphical user interface IMS, see IP multimedia subsystem IMS web security function (IWSF), 312 Incident response process, 175 Information technology (IT), 13, 45, 51, 105 Hadoop distributed file system (HDFS), 143 Information Technology Infrastructure Library standard Hadoop ecosystem, 143 (ITIL standard), 390 Apache software foundation, 143-144 Infrastructure as a Service layer (IaaS layer), 303-304, 398 batch processing, 146 Infrastructure controllers, 240 coordination and workflow management, 147-148 orchestration, 116-117 data ingestion, 144 Infrastructure management (IM), 61 real-time and micro-batch processing using STORM Infrastructure orchestration and control (IO&C), 100 and SPARK, 146-147 Infrast