TCP and UDP Ports and Protocols

Question 1

Application Protocol

File Transfer protocol - FTP

Answer 1

20 and 21

Question 2

Application Protocol

Secure Shell - SSH

Answer 2

TCP

22

Question 3

Application Protocol

Telnet

Answer 3

TCP

23

Question 4

Application Protocol

SMTP - Simple Mail Transfer Protocol

Answer 4

TCP

25

Question 5

Application Protocol

HTTP- Hypertext Transfer Protocol

Answer 5

TCP

80

Question 6

Application Protocol

POP3 - Post Office Protocol 3 (Email)

Answer 6

TCP

110

Question 7

Application Protocol

IMAP - Internet Message Access Protocol
Incoming Email

Answer 7

TCP

143

Question 8

Application Protocol

HTTPS - HTTP SECURE Protocol (Secure Web pages)

Answer 8

TCP

443

Question 9

Application Protocol

RDP - Remote Desktop Protocol

Answer 9

TCP

3389

Question 10

Utility Protocol

DNS - Domain Name Service - Allows the use of Domain naming

Answer 10

UDP

53

Question 11

Utility Protocol

DHCP - Dynamic Host Configuration Protocol (Automatic IP Addressing Provided by a DHCP Server)

Answer 11

UDP

67 or 68

Question 12

Utility Protocol

NetBIOS/NetBT - Enables old TCP/IP apps to run on current TCP/IP Networks

Answer 12

TCP
137 or 139

UDP
137 or 138

Answer 13

f

Question 14

Utility Protocol

SNMP - Simple Network Management Protocol - Remote management of network devices

Answer 14

UDP

161 or 162

Question 15

Utility Protocol

LDAP - Lightweight Directory Access Protocol (Querying directories)

Answer 15

TCP

389

Question 16

Utility Protocol

SMB/CIFS - Server Message Block/Common Internet File Sharing - (Windows naming/folder sharing and cross-platform file sharing)

Answer 16

TCP

445

Question 17

Utility Protocol

SLP - Service Location Protocol - Services discovery Protocol

Answer 17

TCP/UDP

427

Question 18

Utility Protocol

AFP - Apple File Protocol - macOS file services

Answer 18

TCP 548