COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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POP3
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TFTP
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NNTP
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IMAP4
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Detailed explanation-1: -TFTP (explanation: The trivial file transfer protocol (TFTP) uses TCP/IP port 69. TFTP is a connectionless service for downloading files from a remote system.
Detailed explanation-2: -TFTP is a simple protocol for transferring files, implemented on top of the UDP/IP protocols using well-known port number 69. TFTP was designed to be small and easy to implement, and therefore it lacks most of the advanced features offered by more robust file transfer protocols.
Detailed explanation-3: -For TFTP and DHCP, you need to enable ports 67, 69, and 4011. The TFTP and multicast servers use ports in the range 64001 through 65000 by default. You can also use the Network Address Translation (NAT) with the Routing and Remote Access network service to control these ports.
Detailed explanation-4: -Trivial File Transfer Protocol (TFTP) is a simple protocol for exchanging files between two TCP/IP machines. TFTP servers allow connections from a TFTP Client for sending and receiving files. The TFTP protocol supports only file send and receive operations.