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Back to Glossary

Three-Legged Stool Model

A metaphor for digital infrastructure comprising Transmission, Processing, and Storage, emphasizing that compromise of any leg leads to system failure.Source: Section III, “Digital Infrastructure Vulnerabilities”

Previous: The Good. The BEAD. The Ugly.

Next: Transmission Diversity

Critical Infrastructure Terms

Workforce Development for Critical Infrastructure 6D Attack Methodology 63-20 Financing 95th Percentile Latency Rule

ACP Administrative Expenses Advanced Communications Networks Aerial Deployment Aerial Installation AI Edge Node AI-Supportive Telecommunications Infrastructure Alternative Connection Paths (Network Resilience)Annual Outage Allowance Application Model Area Challenge Module ARPA ARPU Assassin's Maces Assassin's Maces (杀手锏, Shashoujian)Asymmetric Autonomous Recovery

BABA BABA Whitelist Compliant Equipment Backhaul Bandwidth BEAD Grant Cybersecurity Requirements BEAD II BEAD Program BEAD Supporting Funds BEAD Timelines Benefit of the Bargain Analysis BGP BIP Bit Blended Domains Broadband Broadband Audit Broadband DATA Act Broadband DATA Maps Broadband Feasibility Study Broadband Service Provider Broadband Serviceable Locations BTOP Bulk Fabric Challenge Buried Fiber Deployment

Cable CAF CAI CAP Capex Capital Projects Program Capital Stack Carrier-Neutral Infrastructure Cascading Failure CBG Census Block Challenge Process Clawback Provisions CMC Pilot Program Co-op Coax Common Stock Commonly Accepted Standards Communications Act of 1934 Community Development Financial Institution Community Reinvestment Act Conduit Financing Conduit Systems and Manholes Connectivity Profile Consolidated Appropriations Act of 2021 Content Provider Contested Logistics CPE Cyber and Electromagnetic Attacks Cybersecurity for Emergency Communications Cybersecurity Resilience

Data Packet Davis-Bacon Act (for BEAD)Debt/EBITDA Digital Contested Logistics Digital Divide Digital Equity Act Programs Digital Inclusion Digital Infrastructure Digital Infrastructure as a Strategic Target Digital Sovereignty Digital Twin Infrastructure Mapping Direct Network Interconnection (Edge AI Context)Disaster Exemption Standard DPP DSL DSRC

EBITDA EBITDA Margin Economic Development Incentive Edge Computing Readiness Eligible Community Anchor Institution Eligible Entity Emergency Communications Center EMP Resitant Enclosures Ethernet Cable EV

Fabric False Confidence Paradox FCC FCC 80/80 Feasibility Study Federal Facilities Connectivity Requirements Fiber Fiber to the Home Fiber to the home/premises/curb/node Final Proposal Final Proposal Submission Five-Year Action Plan Formula Grant FRN FTTC FTTH FTTN FTTP Future Computing Technologies

GAN Geopolitical Technology Competition (US-China)GO Bond Gold Standard Science Golden Dome for America Initiative Graceful Degradation Grant Adjusted YOC Grant Revenue Anticipation Notes Gross Profit Margin Ground Deployment Guaranteed Bank Loan

High Cost Area

ILEC In-kind Matching Funds In-Line Amplifier Facilities Indian Tribe Infrastructure Hardening ROI Infrastructure Investment & Jobs Act Initial Funding Availability Initial Proposal Internet Exchange Facility Internet Protocol Interoperability IRBs IRU ISP IXP

Kessler Cascade

Last Mile Legal Expenses Letter of Credit Limited-Tax General Obligation Pledge Loan LOC Local Coordination LOI Low-Cost Broadband Service Option

Make Ready Work Match Funding Matching Funds for BEAD Grants Matching Requirements for Infrastructure Grants MDU Challenge Module Mezz Debt Micro DC Middle Mile Millimeter Wave Mission-Critical Ruggedization Mobile Mobile Wireless Communications Infrastructure on Educational Facilities Multi-Dwelling Unit Multi-Modal Network Multi-Modality Muni Bond

Native American Native Entity Net Working Capital Network Capacity for AI Workloads Network Hardening Network Node NG911 NIST NOFO NTIA

OLT ONT Outside Plant Overbuilding

Packet Loss Peering and Transit Agreements Performance Bonds for BEAD Grants Physical Layer Attack Ping Point to Point PPP PQC Preferred Equity Preparedness and Resilience Private Activity Bonds Project Finance PSAP PT&S

RDOF ReConnect RECs Reliability Reliable Broadband Service Remaining Amounts Request for Initial Planning Funds Resilient Digital Infrastructure Resilient Network Architecture Revenue Bond Revolver Route Server Rural Utility Service

SACs SAFE Satellite Internet SCRM Secondary Addresses Secured Debt Security Senior Debt Service Continuity During Compromise Shareholders’ Equity Space Dominance and Exploration Infrastructure Speed Speed Test Module State Strategic (High Altitude) EMP Strategic Telecommunications Infrastructure Subgrantee Subgrantee Selection Submarine Cable Landing Station Subordinated Debenture Subsidiarity SUCCESS for BEAD Act Symmetric

Tactical (Close Range) EMP Take Rate Tax-Exempt Debt Taxable Debt Telecommunications Act of 1996 Telecommunications Backbone Hardening The Good. The BEAD. The Ugly.Three-Legged Stool ModelTransmission Diversity Tribal Broadband Connectivity Program Tribal Data Sovereignty Tribal Government Tribal Land Trust Land

Underserved Underserved Service Project Universal Service Fund Unlevered Returns Unlimited-Tax General Obligation Pledge Unsecured Debt Unserved community Unserved Service Project Upload and download USS Utility

Wholesale Business Models in Telecommunications Wholesale Fiber (Lit and Dark)Wi-Fi Wi-Fi Router Wireless

YOC