5、在网络时间协议（NTP）中，Stratum层的总数限制在（）以内。A．10B．15C．20D．25
5、在网络时间协议（NTP）中，Stratum层的总数限制在（）以内。
A．10
B．15
C．20
D．25
参考答案和解析
B
相关考题：
先进基层单位“双争”活动的评比比例是（）A、先进中队的比例，一般控制在中队总数的30％以内，先进支队可增加5％B、优秀士兵的比例，可掌握在士兵总数的25％左右C、先进中队的比例，一般控制在中队总数的20％以内，先进支队可增加3％D、优秀士兵的比例，可掌握在士兵总数的30％左右
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.
What s the default stratum clock on a Cisco router，when you see the key word "master" configured on the NTP line？（）A、1B、2C、4D、6E、8
An administrator needs to configure a server (192.168.22.22) as a temporary solution for an NTP master that has stopped working. What is the process for configuring the NTP master?（）A、Edit the /etc/ntp.conf file changing the server line to 'server 127.127.1.0' and add the line 'fudge 127.127.1.0 stratum 0', and then refresh the daemon.B、Edit the /etc/ntp.conf file changing the server line to 'server 127.127.1.0' and add the line 'master 127.127.1.0 stratum 0', and then refresh the daemon.C、Edit the /etc/ntp.conf file changing the server line to 'server 192.168.22.22' and add the line 'fudge 192.168.22.22 stratum 0', and then refresh the daemon.D、Edit the /etc/ntp.conf file changing the server line to 'server 192.168.22.22' and addthe line 'master 192.168.22.22 stratum 0', and then refresh the daemon.
单选题以下关于无线传感器网络时间同步技术的描述中，错误的是（）。A无线传感器网络应用中需要时间同步机制B网络时间协议（NTP）是互联网采用的时间同步协议C最新的NTPv4精确度已达到毫秒级D无线传感器网络使用NTP协议
单选题每千米线路动态评定标准：（）时评为失格。A扣分总数在5分及以内B扣分总数在50分及以内C扣分总数在51～300分D扣分总数在300分以上