Ports And Protocols

Question 1

File transfer protocol (FTP)

Answer 1

○ Ports 20, 21
○ Provides insecure file transfers

Question 2

Secure shell (SSH)

Answer 2

○ Port 22
○ Provides secure remote control of another machine using a text-based environment (terminal, PowerShell, command line)

Question 3

Secure file transfer protocol (SFTP)

Answer 3

○ Port 22
○ Provides secure file transer

Question 4

Telnet

Answer 4

○ Port 23
○ Provides insecure remote control of another machine using a text-based environment
○ Don’t use this!!

Question 5

Simple mail transfer protocol (SMTP)

Answer 5

○ Port 25
○ Provides ability to send emails over the network

Question 6

Domain name system (DNS)

Answer 6

○ Port 53
○ Converts domain names to ip address and ip addresses to domain names

Question 7

Dynamic host configuration protocol (DHCP)

Answer 7

○ Ports 67, and 68
○ Used to automatically and dynamically assign network parameters (ip addresses, subnet masks, default gateways, and DNS servers)

Question 8

Hypertext transfer protocol (HTTP)

Answer 8

○ Port 80
Used for insecure web browsing

Question 9

Post office protocol version 3 (POP3)

Answer 9

○ Port 110
○ Used for receiving incoming emails

Question 10

Network basics input/output system (netBIOS)

Answer 10

○ Ports 137, and 139
○ Used for file sharing or printer sharing in a Windows network

Question 11

Internet mail application protocol (IMAP)

Answer 11

○ Port 143
○ New method of retrieving emails, improves upon POP3

Question 12

Simple network management protocol (SNMP)

Answer 12

○ Ports 161, and 162
○ Used to collect data about network devices and monitor their status

Question 13

Lightweight directory access protocol (LDAP)

Answer 13

○ Port 389
○ Used to provide directory services to your network

Question 14

Hypertext transfer protocol-secure (HTTPS)

Answer 14

○ Port 443
○ Provides secure, encrypted internet browsing

Question 15

Server message block (SMB)

Answer 15

○ Port 445
○ Used for windows file and printer sharing services

Question 16

Remote Desktop protocol (RDP)

Answer 16

○ Port 3389
○ Provides graphical remote control of another client or server

Question 17

SLP

Answer 17

Service location protocol
-port 427
-network service used to organize and locate network resources (printers, disk drives, directories, servers)

Question 18

TFTP

Answer 18

Trivial file transfer protocol
-port 69
-used to provide basic file transfer function with no user authentication