Which network device does NTP authenticate?

The correct answer is A. Only the time source. NTP authentication, the device synchronizes to a time source only if the source carries one of the authentication keys specified by the ntp trusted-key command. The device drops any packets that fail the authentication check and prevents them from updating the local clock. NTP…

Security Concepts

Question

Options

AOnly the time source
BOnly the client device
CThe firewall and the client device
DThe client device and the time source

How the community answered

(39 responses)

A
92% (36)
C
5% (2)
D
3% (1)

Explanation

NTP authentication, the device synchronizes to a time source only if the source carries one of the authentication keys specified by the ntp trusted-key command. The device drops any packets that fail the authentication check and prevents them from updating the local clock. NTP authentication is disabled by default. os/system_management/configuration/guide/sm_nx_os_cg/sm_3ntp.html#wp1100303

Topics

#NTP#time source authentication#network time protocol

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