Ports and Protocols

Question 1

20, 21

Answer 1

File Transfer Protocol (FTP)
Insecure file transfers

Question 2

22

Answer 2

Secure Shell (SSH)
Secure remote control of another device using text-based environment

Question 3

22

Answer 3

Secure File Transfer Protocol (SFTP)
Secure file transfers

Question 4

23

Answer 4

Telnet
INSECURE remote control of another device using a text-based environment

Question 5

25

Answer 5

Simple Mail Transfer Protocol (SMTP)
Provides ability to send emails over network

Question 6

53

Answer 6

Domain Name System (DNS)
Converts domain names to IP addresses and vice versa

Question 7

67, 68

Answer 7

Dynamic Host Configuration Protocol (DHCP)
Automatically assigns network parameters

Question 8

80

Answer 8

Hypertext Transfer Protocol (HTTP)
Insecure web browsing

Question 9

110

Answer 9

Post Office Protocol V3 (POP3)
Receive incoming emails

Question 10

137, 139

Answer 10

NetBIOS
Allows file or printer sharing in a Windows network

Question 11

143

Answer 11

Internet Mail Application Protocol (IMAP)
Receive incoming emails (new method, improves upon POP3)

Question 12

161, 162

Answer 12

Simple Network Management Protocol (SMNP)
Collect data about network devices and monitor status

Question 13

389

Answer 13

Lightweight Directory Access Protocol (LDAP)
Provide directory services to your network

Question 14

443

Answer 14

Hypertext Transfer Protocol - Secure (HTTPS)
Secure and encrypted version of web browsing

Question 15

445

Answer 15

Server Message Block (SMB)
Windows file and printer sharing services

Question 16

3389

Answer 16

Remote Desktop Protocol (RDP)
Remote control of another devices using a GUI

Question 17

69

Answer 17

Trivial File Transfer Protocol (TFTP)
Connectionless protocol that uses UDP as its transport