Ports

Question 1

21

Answer 1

FTP

TCP, UDP

File Transfer Protocol Control Connection

Question 2

22

Answer 2

SSH

TCP, UDP

Secure Shell, Secure Logins, File Transfer, Port Forwarding

Question 3

23

Answer 3

TELNET

TCP

Telnet Prorocol - unencrypted text communication

Question 4

25

Answer 4

SMTP

TCP

Simple mail transfer protocol - email routing - servers

Question 5

53

Answer 5

DNS

TCP, UDP

Domain Name System Name Resolver

Question 6

69

Answer 6

TFTP

TDP

Trivial file transfer protocol

Question 7

80

Answer 7

HTTP

TCP, UDP

Hypertext transfer protocol

Question 8

88

Answer 8

Kerberos

TCP, UDP

Network Authentication System

Question 9

110

Answer 9

POP3

TCP

Post Office Protocol, Version 3, Email

Question 10

135

Answer 10

Microsoft EPMAP

TCP, UDP

Microsoft endpoint manager, DCE/RPC Locator

Question 11

137

Answer 11

NetBIOS-ns

TCP, UDP

NetBIOS name service, used for name registration + resolution

Question 12

139

Answer 12

NetBIOS-ssn

TCP, UDP

NetBIOS Session Service

Question 13

143

Answer 13

IMAP4

TCP, UDP

Internet message access protocol - email on server

Question 14

443

Answer 14

HTTPS (HTTP over SSL)

TCP, UDP

Hypertext transfer protocol Secure

Question 15

465

Answer 15

SMTP over TSL/SSL

TCP

Email message submission

Question 16

587

Answer 16

SMTP

TCP

Email Message Submission

Question 17

636

Answer 17

LDAP over TLS/SSL

TCP

Authenticated SMTP over TLS/SSL (SMTPS)

Question 18

993

Answer 18

IMAP over SSL

TCP

Internet message access protocol over TLS/SSL (IMAPS)

Question 19

995

Answer 19

POP3 over SSL

TCP, UDP

Post Office Protocol 3 over TLS/SSL

Question 20

1433

Answer 20

Microsoft SQL

TCP

Facilitates communication with MSSQL

Question 21

Well Known Port Range

Answer 21

0 - 1023

Question 22

Registered Port Range

Answer 22

1024 - 49151

Question 23

Dynamic/Open Port Range

Answer 23

49152 - 65535