ping

Question 1

How does ping work?

Answer 1

It sends an ICMP packet to a host with three parameters: a type (normally echo), a code (for error types), and a checksum (message integrity check).

The host receives the packet and can respond with an “echo reply” indicating the device is available

Question 2

Ping reports…

Answer 2

packet loss, errors and a statistical summary of the results

Question 3

Ping can also…

Answer 3

• payload size, test count, network hop, round trip time or latency
• record the network route from the source to the target host
• test DNS resolution