Network Protocol Port Numbers Quiz

Which port number is used by HTTP for web traffic?

• 80

• 443

• 21

• 25

Secure web traffic using HTTPS typically uses which port number?

• 22

• 80

• 443

• 110

What is the default port number for SSH (Secure Shell)?

• 21

• 22

• 23

• 25

DNS (Domain Name System) operates primarily on which port?

• 53

• 25

• 110

• 143

Which port number is used by the Telnet protocol?

• 22

• 23

• 443

• 53

Which port is used by RDP (Remote Desktop Protocol)?

• 3389

• 8080

• 3306

• 123

POP3 (Post Office Protocol version 3) uses which port number for email retrieval?

• 21

• 110

• 143

• 993

Which ports are used by the FTP protocol?

• 20 and 21

• 22 and 23

• 80 and 443

• 25 and 110

Which port is used by the SMTP protocol?

• 25

• 110

• 143

• 443

Which port is used by the IMAP protocol?

• 80

• 110

• 143

• 443