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Common Port Numbers Quiz

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Questions and Answers

Which protocol is associated with port number 22?

Hypertext Transfer Protocol (HTTP)

Secure Shell (SSH) (correct)

File Transfer Protocol (FTP)

Simple Mail Transfer Protocol (SMTP)

Which of the following protocols uses port 80?

Remote Desktop Protocol (RDP)

Hypertext Transfer Protocol (HTTP) (correct)

Dynamic Host Configuration Protocol (DHCP)

Simple Network Management Protocol (SNMP)

What is the purpose of port numbers 53?

File Transfer

Remote Access

Domain Name System (DNS) (correct)

Email Sending

Which port numbers are used by the Dynamic Host Configuration Protocol (DHCP)?

67/68 Signup and view all the answers

For which protocol is port 443 commonly used?

Hypertext Transfer Protocol Secure (HTTPS) Signup and view all the answers

Which protocol utilizes port number 161/162?

Simple Network Management Protocol (SNMP) Signup and view all the answers

Port number 25 is primarily used for which protocol?

Simple Mail Transfer Protocol (SMTP) Signup and view all the answers

Which port is used for the Remote Desktop Protocol?

3389 Signup and view all the answers

What protocol operates on port number 389?

Lightweight Directory Access Protocol (LDAP) Signup and view all the answers

Study Notes

Common Port Numbers

Port 20/21: File Transfer Protocol (FTP)
Port 22: Secure Shell (SSH)
Port 25: Simple Mail Transfer Protocol (SMTP)
Port 53: Domain Name System (DNS)
Port 67/68: Dynamic Host Configuration Protocol (DHCP)
Port 80: Hypertext Transfer Protocol (HTTP)
Port 110: Post Office Protocol v3 (POP3)
Port 137/139: Network Basic Input/Output System (NetBIOS) / NetBIOS over TCP/IP
Port 143: Internet Mail Access Protocol (IMAP)
Port 161/162: Simple Network Management Protocol (SNMP)
Port 389: Lightweight Directory Access Protocol (LDAP)
Port 443: Hypertext Transfer Protocol Secure (HTTPS)
Port 445: Server Message Block (SMB) / Common Internet File System (CIFS)
Port 3389: Remote Desktop Protocol (RDP)

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Description

Test your knowledge on common port numbers used in networking! This quiz covers essential protocols such as FTP, SSH, SMTP, and more. See how well you understand the function of various ports and their relevance in internet connectivity.