CCNA: Cisco Certified Network Associate — Question 1296

A network engineer is configuring a new router at a branch office. The router is connected to an upstream WAN network that allows the branch to communicate with the head office. The central time server with IP address 172.24.54.8 is located behind a firewall at the head office. Which command must the engineer configure so that the software clock of the new router synchronizes with the time server?

Answer options

• A. ntp server 172.24.54.8
• B. ntp master 172.24.54.8
• C. ntp peer 172.24.54.8
• D. ntp client 172.24.54.8

Correct answer: A

Explanation

The correct command is 'ntp server 172.24.54.8', which designates the specified IP as the time source for synchronization. The 'ntp master' command is used to set a device as a time source instead of syncing with one, while 'ntp peer' is for establishing a peer relationship with another NTP server. 'ntp client' is not a valid command for configuring time synchronization.