Which IP SLA operation can be used to measure round-trip delay for the full path and hop-by hop round- trip delay on the network?
正解:D
Explanation/Reference: Explanation: The ICMP Path Echo operation computes hop-by-hop response time between a Cisco router and any IP device on the network. References: http://www.cisco.com/en/US/technologies/tk648/tk362/tk920/ technologies_white_paper09186a00802d5efe.html