An Internet standard protocol (built on top of TCP/IP) that assures accurate synchronization to the millisecond of computer clock times in a network of computers.
Which of the following statement is true for NTP Stratum Levels?
A . Stratum-0 servers are used on the network; they are not directly connected to computers which then operate as stratum-1 servers
B . Stratum-1 time server is linked over a network path to a reliable source of UTC time such as GPS, WWV, or CDMA transmissions
C . A stratum-2 server is directly linked (not over a network path) to a reliable source of UTC time such as GPS, WWV, or CDMA transmissions
D . A stratum-3 server gets its time over a network link, via NTP, from a stratum-2 server, and so on
Answer: D