Which of the following is the correct port number for NTP?
A.
25 B.
69 C.
123 D.
161
C.
Which of the following is the correct port number for NTP?
A.
25
B.
69
C.
123
D.
161
C.
The correct answer for the port number used by Network Time Protocol (NTP) is C, 123.
NTP is a protocol used for synchronizing the clocks of computers and other network devices. It allows them to maintain consistent time across the network and enables them to perform time-based functions like logging events or scheduling tasks. NTP is based on the User Datagram Protocol (UDP) and uses port number 123 for both incoming and outgoing traffic.
A brief explanation of the other port numbers:
A. 25 is the port number used for Simple Mail Transfer Protocol (SMTP), which is used for sending and receiving email messages.
B. 69 is the port number used for Trivial File Transfer Protocol (TFTP), which is a simplified version of the File Transfer Protocol (FTP) used for transferring files between network devices.
D. 161 is the port number used for Simple Network Management Protocol (SNMP), which is used for monitoring and managing network devices such as routers, switches, and servers.