NETWORK SECURITY
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What port number is Telnet (Telecommunications Network)?
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tcp 21
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tcp 22
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tcp 23
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tcp 445
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Explanation:
Detailed explanation-1: -The telnet protocol is a client-server protocol, based on a reliable connection-oriented transport. This protocol is used to establish a connection to Transmission Control Protocol (TCP) port number 23 or 2323, where a Telnet server application is listening.
Detailed explanation-2: -It means that the standard port assigned to telnet is 23. It is the default port. If you install a telnet server with a default configuration it will listen to port 23. Accordingly if you use a telnet client without specifying a port, it will try to connect to the port 23 of the destination.
Detailed explanation-3: -By default, a telnet server listens on port 23 for incoming connections from clients.
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