Home » Cisco » 200-901 » Which protocol must be allowed on the firewall so that NTP services work properly?
Which protocol must be allowed on the firewall so that NTP services work properly?
A. TCP
B. ICMP
C. BGP
D. UDP
Correct Answer: D
Explanation/Reference:
Explanation:
Reference: https://www.cisco.com/c/en/us/support/docs/ip/network-time-protocol-ntp/108076-ntp-troubleshoot.html
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