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- CCNA Routing and Switching 200-125
86.
Which command will allow you to see if the router or switch is using NTP?
- A.Router#show clock detail
- B.Router#show ntp
- C.Router#show time
- D.Router#show time source
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| The command show clock detail will result in either no time source or time source is NTP if the router or switch is configured to slave off a server for time. |
87.
Which command configures the router or switch to trust its internal time clock?
- A.Router(config)#ntp server
- B.Router(config)#ntp master
- C.Router(config)#ntp clock source
- D.Router(config)#ntp trusted
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| The command ntp master configures the router or switch to trust its internal time clock. |
88.
Which command will allow your router to synchronize with a time source of
129.6.15.28?
- A.Router(config)#ntp server 129.6.15.28
- B.Router#ntp server 129.6.15.28
- C.Router(config)#ntp client 129.6.15.28
- D.Router#ntp client 129.6.15.28
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| The command ntp server 129.6.15.28 will configure your router to connect to the server 129.6.15.28 as an NTP source. This command must be entered in global configuration mode. |
89.
Why is time synchronization important for routers and switches?
- A.It is important for serialized communication frame alignment.
- B.It is important for quality of service queuing.
- C.It is important for logging accuracy.
- D.It helps delivery of packets via timed queues.
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| Time synchronization is important for logging accuracy. Serial communication frame alignment is timed via DCE clocking and packet queues are timed by how fastthey can respond. |
90.
Which protocol helps synchronize time for routers and switches?
- A.SNMP
- B.NTP/li>
- C.Syslog
- D.ICMP
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| The Network Time Protocol (NTP) is used to synchronize time for routers and switches. |
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