单选题What is a characteristic of Network Time Protocol？（）ANTP updates are sent in the timezone they are collected in，and the syslog server will adjust based on the input time.BNTP authentication verifies the source，not the recipient.CNTP authentication requires that the recipient has multiple strata clocks to ensure accuracy.DSecure NTP can be configured to use SHA-1 hashing，since NTP is very insecure.EA stratum 0 clock should be configured at the core of every network，so it can connect to an accuratetime source.
单选题
What is a characteristic of Network Time Protocol？（）
A
NTP updates are sent in the timezone they are collected in，and the syslog server will adjust based on the input time.
B
NTP authentication verifies the source，not the recipient.
C
NTP authentication requires that the recipient has multiple strata clocks to ensure accuracy.
D
Secure NTP can be configured to use SHA-1 hashing，since NTP is very insecure.
E
A stratum 0 clock should be configured at the core of every network，so it can connect to an accuratetime source.
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