Ports And Protocols

Question 1

What port or ports use FTP?

Answer 1

Ports 20/21

Question 2

Remote command line that is used to secure ftp traffic.

Answer 2

ssh

Question 3

What port uses ssh?

Answer 3

Port 22

Question 4

Remote command line (plain text) not secure.

Answer 4

Telnet

Question 5

What port is used for telnet?

Answer 5

Port 23

Question 6

Protocol used for sending mail?

Answer 6

SMTP

Question 7

What port uses SMTP?

Answer 7

Port 25

Question 8

Remote auth typically to other network devices such as routers and switches.

Answer 8

TACACS

Question 9

What port does TACACS use?

Answer 9

Port 49

Question 10

Remote file transfer (plaintext) command line driven.

Answer 10

FTP

Question 11

This protocol converts friendly names to IP addresses

Answer 11

DNS

Question 12

What port does DNS use?

Answer 12

53

Question 13

This protocol distributes IP addresses - leases

Answer 13

DHCP

Question 14

What port does DHCP use?

Answer 14

67

Question 15

What protocol does Internet traffic use?

Answer 15

HTTP

Question 16

What port is HTTP?

Answer 16

80

Question 17

What is Kerberos?

Answer 17

Authentication protocol

Question 18

What protocol traverses port 88

Answer 18

Kerberos

Question 19

What is POP3 protocol used for?

Answer 19

Receiving email

Question 20

What is IMAP?

Answer 20

Protocol that is used for receiving email - opens email from server - can use across devices - syncs

Question 21

What protocol traverses port 143?

Answer 21

IMAP

Question 22

What port does SNMP traffic use?

Answer 22

Port 161

Question 23

What does simple network monitoring protocol do?

Answer 23

Allows devices to share health status.

Question 24

What is the Lightweight Directory Access Protocol or LDAP?

Answer 24

Way to access and maintain distributed directory information services.

Question 25

What port does LDAP use?

Answer 25

Port 389

Question 26

What port does HTTPS, SSL, and SSTP(secure socket tunneling protocol)?

Answer 26

Port 443

Question 27

What port does secure LDAP use?

Answer 27

Port 636

Question 28

What ports are Microsoft VPN ports

Answer 28

Ports 1701 and 1723

Question 29

What port does L2TP traverse?

Answer 29

Port 1701

Question 30

What port does PPTP traverse?

Answer 30

Port 1723

Question 31

What is L2TP?

Answer 31

Layer 2 tunneling protocol - negotiate security.

Question 32

What is PPTP?

Answer 32

Point to point tunneling protocol used for Microsoft VPN.

Question 33

What port does Radius traverse?

Answer 33

Port 1812

Question 34

What port does Remote Desktop (RDP) use?

Answer 34

Port 3389

Question 35

What port does POP3 secure use?

Answer 35

Port 995

Question 36

What port does IMAP secure use?

Answer 36

Port 993

Question 37

What port uses tftp?

Answer 37

Port 69

Question 38

What is tftp?

Answer 38

Trivial file transfer protocol - small files - UDP - not encrypted

Question 39

What port does FTPS use?

Answer 39

Port 990

Question 40

What is FTPS?

Answer 40

For secure FTP rather than command line.