Which port is used by the Official IRC service?

Which port is used by the Official IRC service?

• A. 80
• B. 6667
• C. 25
• D. 194

Answer: (D)

Port numbers act as addresses that tell a client which service on a host should handle a connection. Each service name is paired with a specific port in the registry, so when a client connects to that port, the server knows which service to speak to. For the Official IRC service, the registry designates the port as 194. That means clients or servers seeking the Official IRC service should connect to port 194 to reach that service, avoiding ambiguity with other services that have different standard ports. Even though IRC is commonly associated with other ports in everyday setups, this question uses the Official IRC service's assigned port as 194. The other options correspond to different services (web, email, etc.), so they would not be the designated port for the Official IRC service.

Port numbers act as addresses that tell a client which service on a host should handle a connection. Each service name is paired with a specific port in the registry, so when a client connects to that port, the server knows which service to speak to. For the Official IRC service, the registry designates the port as 194. That means clients or servers seeking the Official IRC service should connect to port 194 to reach that service, avoiding ambiguity with other services that have different standard ports. Even though IRC is commonly associated with other ports in everyday setups, this question uses the Official IRC service's assigned port as 194. The other options correspond to different services (web, email, etc.), so they would not be the designated port for the Official IRC service.