What is the highest numbered TCP/IP port?
A.
2047
B.
32767
C.
65535
D.
131071
Explanation:
There are 65535 possible ports officially recognized.
Note:
TCP uses the notion of port numbers to identify sending and receiving applications. Each side of a TCP connection has an associated 16-bit unsigned port number
assigned to the sending or receiving application. Ports are categorized into three basic categories: well known, registered and dynamic/private. The well known
ports are assigned by the Internet Assigned Numbers uthority (IANA) and are typically used by system-level or root processes. Well known applications running as
servers and passively listening for connections typically use these ports. Some examples include: FTP (21), TELNET (23), SMTP (25) and HTTP (80). Registered
ports are typically used by end user applications as ephemeral source ports when contacting servers, but they can also identify named services that have been
registered by a third party. Dynamic/private ports can also be used by end user applications, but are less commonly so. Dynamic/private ports do not contain any
meaning outside of any particular TCP connection. com