FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

WHAT IS A FIREWALL IN NETWORK SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a file transfer protocol that uses UDP?
A
POP3
B
SMTP
C
HTTP
D
FTP
E
TFTP
Explanation: 

Detailed explanation-1: -Simple Network Management Protocol (SNMP). SNMP uses UDP as its transport protocol fundamentally because of the need for low latency and also to keep network usage overheads low so that the network management system does not itself become a source of excessive network load.

Detailed explanation-2: -TFTP, or Trivial File Transfer Protocol, is a simple high-level protocol for transferring data servers use to boot diskless workstations, X-terminals, and routers by using User Data Protocol (UDP).

Detailed explanation-3: -Trivial File Transfer Protocol (TFTP) is a simple protocol that provides basic file transfer function with no user authentication. TFTP is intended for applications that do not need the sophisticated interactions that File Transfer Protocol (FTP) provides.

Detailed explanation-4: -TFTP uses UDP as its transport protocol. A transfer request is always initiated targeting port 69, but the data transfer ports are chosen independently by the sender and receiver during the transfer initialization.

Detailed explanation-5: -As mentioned, TFTP uses UDP as a transport, as opposed to TCP which FTP uses, and works on port 69, you can clearly see that in the cool 3D diagram on the left. Port 69 is the default port for TFTP, but if you like, you can modify the settings on your TFTP server so it runs on a different port.

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