Networks Troubleshooting

What are methods of error detection/correction?

• Cyclical redundancy check

• Checksum

• LRC

• VRC

What are the two types of errors

• Transmission error

• Protocol error

• Bit Error

• Brust Error

How does ICMP work?

• Translates computer language to binary system

• Translates human language to computer language

• Translates computer language to human language

What does ICMP stand for?

• Interface Control Management Protocol

• Integrated Communications Management Platform

• Internet control message protocol

How many layers are in an ICMP packet?

• 4

• 5

• 7

• 9

What does port connectivity use to be successful?

• Host

• Port

• Application

• Host and Port

What are two programs did we cover that are used for port connectivity?

• Net Cat

• Cisco

• Powershell

• Checksum

How does ping work?

• Measure round-trip time

• Sends an echo request and receives an echo reply

• Report latency

• Report packet loss

How does traceroute work?

• Tracks each individual hop along the path

• manipulate TCP/IP routing table

• Report latency

What command is used in Linux and MacOS in order to interrupt the Ping command?

• Ctrl+V

• Ctrl+X

• Ctrl+C

• End