Ports

Question 1

SSH

Answer 1

port 22; Secure Shell

Question 2

DNS

Answer 2

port 53; Domain Name System

Question 3

SMTP

Answer 3

port 25; Simple Mail Transfer Protocol

Question 4

SFTP

Answer 4

port 22; SSH (Secure Shell) File Transfer Protocol

Question 5

FTP

Answer 5

port 20 and 21; File Transfer Protocol

Question 6

TFTP

Answer 6

port 69; Trivial File Transfer Protocol

Question 7

Telenet

Answer 7

port 23; enables you to remotely administer a server and communicate with other servers on your network

Question 8

DHCP

Answer 8

port 67 and 68; Dynamic Host Configuration Protocol

Question 9

HTTP

Answer 9

port 80; Hypertext Transfer Protocol

Question 10

HTTPS

Answer 10

port 443; Hypertext Transfer Protocol Secure

Question 11

SNMP

Answer 11

port 161; Simple Network Management Protocol

Question 12

RDP

Answer 12

port 3389; Remote Desktop Protocol

Question 13

NTP

Answer 13

port 123; Network Time Protocol

Question 14

SIP

Answer 14

port 5060 and 5061; Session Initiation Protocol

Question 15

SMB

Answer 15

port 445; Server Message Block

Question 16

POP

Answer 16

port 110; Post Office Protocol (version 3?)

Question 17

IMAP

Answer 17

port 143; Internet Message Access Protocol (version 4?)

Question 18

LDAP

Answer 18

port 389; Lightweight Directory Access Protocol

Question 19

LDAPS

Answer 19

port 636; Lightweight Directory Access Protocol Secure

Question 20

H.323

Answer 20

port 1720;handles initiation, setup, and delivery of VoIP sessions; has methods for multicasting