200-301 Question 364
Select 2A network administrator is tasked with configuring NTP on a router to act as both an NTP client and an NTP server. The router should synchronize its time with an external NTP server (192.168.1.10) and provide time synchronization to other devices in the network. Which of the following commands will correctly achieve this setup?
- A
ntp server 192.168.1.10
- B
ntp master 3
- C
ntp peer 192.168.1.10
- D
ntp broadcast client
- E
ntp authenticate
Show answer and explanation
Correct answers: A, B
Explanation
To configure the router to act as both an NTP client and server, the 'ntp server' command is used to synchronize with an external NTP server, and the 'ntp master' command is used to enable the router to serve as a time source for other devices. The other commands are either unrelated to the scenario or unnecessary based on the requirements provided.
- A. Correct.
This command configures the router to act as an NTP client and synchronize its time with the external NTP server at 192.168.1.10.
- B. Correct.
This command configures the router as an authoritative NTP server with stratum 3, allowing it to provide time synchronization to other devices in the network.
- C. Incorrect.
This command is used for configuring the router as an NTP peer, which is not required in this scenario as the router is set to act as an NTP client and server, not a peer.
- D. Incorrect.
This command enables the router to receive NTP broadcasts, which is not relevant for this task since the router is synchronizing with a specific server, not via broadcast.
- E. Incorrect.
This command enables NTP authentication, which is not mentioned as a requirement in this scenario.