Which two statements about NTP operations are true? (Choose two.)
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A. B. C. D. E.AB.
The correct answers are A and B.
A) NTP (Network Time Protocol) uses UDP (User Datagram Protocol) over IP (Internet Protocol) as its transport protocol. UDP is a connectionless protocol that doesn't provide error checking or data recovery, but it is faster and less complex than TCP, making it suitable for time synchronization.
B) Cisco routers can act as both NTP authoritative servers and NTP clients. An NTP authoritative server is a server that provides time synchronization to other devices on the network, while an NTP client is a device that synchronizes its clock with an NTP server. Cisco routers can also act as NTP peers, which are devices that exchange time information with each other and adjust their clocks accordingly.
C) This statement is false. Cisco routers can act as NTP servers, clients, and peers.
D) This statement is false. Cisco routers can act as NTP clients, servers, and peers.
E) This statement is false. NTP uses UDP as its transport protocol, not TCP.
In summary, NTP is a protocol used to synchronize clocks on network devices. It uses UDP as its transport protocol, and Cisco routers can act as NTP authoritative servers, clients, and peers.