Which choice is a NID placed at the demarcation point between an ISP and customer's networks that can be used as a troubleshooting tool when diagnosing a network issue?

  • Smart jack
  • Protocol Analyzer
  • Line validator
  • DMZ

CompTIA Network+ N10-008
  • Networking Fundamentals
  • Network Implementations
    • This question is filed here
  • Network Operations
  • Network Security
  • Network Troubleshooting