Ports TCP

Question 1

FTP

Answer 1

21

Question 2

SSH or SFTP

Answer 2

22

Question 3

Telnet

Answer 3

23

Question 4

SMTP

Answer 4

25

Question 5

DNS

Answer 5

53

Question 6

HTTP

Answer 6

80

Question 7

POP3

Answer 7

110

Question 8

RPCBIND

Answer 8

111

Question 9

MSRPC

Answer 9

115

Question 10

NETBIOS-SSN

Answer 10

139

Question 11

IMAP

Answer 11

143

Question 12

HTTPS

Answer 12

443

Question 13

MICROSOFT-DS

Answer 13

445

Question 14

IMAPS

Answer 14

993

Question 15

POP3S

Answer 15

995

Question 16

PPTP

Answer 16

1723

Question 17

MYSQL

Answer 17

3306

Question 18

RDP

Answer 18

3389

Question 19

VNC

Answer 19

5900

Question 20

HTTP-PROXY

Answer 20

8080

Question 21

Used to Transfer Files

Answer 21

FTP, 21

Question 22

A remote access tool to give you command line access over a remote system. ; Transfer files through a secure tunnel.

Answer 22

SSH, SFTP, 22

Question 23

An unsecure remote administration interface. SSH has pretty much replaced it in most cases and it is extremely vulnerable.

Answer 23

Telnet, 23

Question 24

This allows email servers to send mail. Will be open if you’re running an email server that can send outbound mail.

Answer 24

SMTP, 25

Question 25

Translates our IP to names and our names to IP on both TCP and UDP.

Answer 25

DNS, 53

Question 26

This is the unsecure version of being able | to send data over the internet.

Answer 26

HTTP, 80

Question 27

This is a legacy mailbox access protocol. These days it has been replaced mostly with IMAP,

Answer 27

POP3, 110

Question 28

This is going to map the Remote Procedure Call to port numbers inside a UNIX-like environment.

Answer 28

RPC-BIND, 111

Question 29

This advertises what Remote Procedure Calls services are available within a Windows environment.

Answer 29

MSRPC, 115

Question 30

Support Windows File Sharing with pre-Windows 2000 version hosts, backwards compatible, and a lot of vulnerabilities.

Answer 30

NETBIOS-SSN, 139

Question 31

Tt is a newer version of mail access that has replaced POP3 in most systems.

Answer 31

IMAP, 143

Question 32

An encrypted tunnel between your client and my server.

Answer 32

HTTPS, 443

Question 33

A secure version of Internet Mail Access Protocol.

Answer 33

IMAPS, 993

Question 34

A secure version for POP3.

Answer 34

POP3S, 995

Question 35

A legacy VPN protocol that was used early on but has a weak security implementation.

Answer 35

PPTP, 1723

Question 36

Used for a database connection that can read and write to a database server.

Answer 36

MYSQL, 3306

Question 37

Allows to visually log into a remote system and is heavily used in a Windows environment.

Answer 37

RDP, 3389

Question 38

This service is basically like RDP but it is open source and used across all systems, not just Windows.

Answer 38

VNC, 5900

Question 39

A web proxy service or alternate port that can be used to send data over the internet.

Answer 39

HTTP-PROXY, 8080