ANSI/ISA 62443 TEST EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+/ VERIFIED.

ANSI/ISA 62443 TEST EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+/ VERIFIED. Boundary Protection Devices - -Proxies Gateways Routers Firewalls Data Diodes Guards Encrypted Tunnels External Time Sources - -GPS GLONASS - Global Navigation Satellite System Galileo FR-7 - Resource Availability includes: - -DoS Protection Resource Management (Prevent Resource Exhaustion) Control System Backup Control System Recovery & Reconstitution Emergency Power Network and Security Config Settings Least Functionality Control system component inventory Types of Security Levels (SLs) - -* Target SLs (SL-T) * Achieved SLs (SL-A) * Capability SLs (SL-C) * Initial SL Foundational Requirements (FR) - -1) Identification and Authentication Control (IAC) 2) Use Control (UC) 3) System Integrity (SI) 4) Data Confidentiality (DC) 5) Restricted Data Flow (RDF) 6) Timely Response to Events (TRE) 7) Resource Availability (RA) Security Level Definitions - -SL-0: No specific requirements or security protection necessary SL-1: Protection against casual or coincidental violation SL-2: Protection against intentional violation using simple means with low resources, generic skills and low motivation SL-3: Protection agains intentional violation using sophisticated means with moderate resources, IACSspecific skills and moderate motivation SL-4: Protection agains intentional violation using sophisticated means with extended resources, IACSspecific skills and high motivation FR-1 Identification and Authentication Control (IAC) - -* Human user ident