2.0 Networking Ports

Question 1

The Three Port Groups

Answer 1

Well-Known Ports, Registered Ports, Dynamic or Private Ports

Question 2

Well-Known Ports

Answer 2

Ports 0 to 1023 are considered well-known and are assigned by the internet. Assigned Number Authority (IANA), ports 23, and 443

Question 3

Dynamic or Private Ports

Answer 3

Ports 49152 to 65535 can be used by an application without being registered with IANA

Question 4

FTP

Answer 4

File Transfer Protocol (FTP): Provides insecure (no encryption) file transfers between a client and a server on a computer network, ports 20, and 21.

Question 5

Ports 20,21

Answer 5

File Transfer Protocol (FTP)

Question 6

SSH

Answer 6

Secure Shell (SSH): Provides secure remote control of another machine using a text-based environment (command-shell), port 22, REMOTE ACCESS

Question 7

Port 22

Answer 7

Secure Shell (SSH), and Secure File Transfer Protocol (SFTP).

Question 8

SFTP

Answer 8

Secure File Transfer Protocol (SFTP): Provides secure (encrypted) file transfers, port 22.

Question 9

Telnet

Answer 9

Telnet: Provides insecure (no encryption) remote control of another machine using a text-based environment similar (command prompts) to SSH but came out first., port 23, REMOTE ACCESS

Question 10

Port 23

Answer 10

Telnet

Question 11

DHCP

Answer 11

Dynamic Host Configuration Protocol (DHCP): Automatically provides network parameters, such as assigned IP address, subnet mask, default gateway, and the DNS server, ports 67, and 68.

Question 12

Ports 67, and 68

Answer 12

Dynamic Host Configuration Protocol (DHCP).

Question 13

TFTP

Answer 13

Trivial File Transfer Protocol (TFTP): A connectionless protocol that uses UDP as its transport, port 69.

Question 14

Port 69

Answer 14

Trivial File Transfer Protocol (TFTP)

Question 15

HTTP

Answer 15

Hypertext Transfer Protocol (HTTP): Used for insecure (no encryption) web browsing the data communication for the worldwide web, port 80, WEB SERVERS.

Question 16

Port 80

Answer 16

Hypertext Transfer Protocol (HTTP).

Question 17

POP3

Answer 17

Post Office Protocol Version Three (POP3): Used for receiving incoming emails. Is old but still used today, port 110, EMAIL SERVERS.

Question 18

Port 110

Answer 18

Post Office Protocol (POP3).

Question 19

NetBIOS

Answer 19

Network Basic Input/Output System (NetBIOS): Used for file or printer sharing in a window network, ports 137, and 139.

Question 20

Ports 137, and 139

Answer 20

NetBIOS

Question 21

IMAP

Answer 21

Internet Mail Application (IMAP): A newer method of retrieving incoming emails which improves upon the older POP3. Allows the ender to use and manipulate the email message, port 143, EMAIL SERVERS

Question 22

Port 143

Answer 22

Internet Mail Application (IMAP)

Question 23

SNMP

Answer 23

Simple Network Management Protocol (SNMP): Used to collect data about network devices and monitor their status, ports 161, 162, NETWORK MONITORING SERVERS.

Question 24

Ports 161, and 162

Answer 24

Simple Network Management Protocol (SNMP)

Question 25

LDAP

Answer 25

Lightweight Directory Access Protocol (LDAP): Used to provide directory services to your network, port 389, port 636, encrypted, AAA SERVERS

Question 26

Ports 389

Answer 26

Lightweight Directory Access Protocol (LDAP)

Question 27

HTTPS

Answer 27

Hypertext Transfer Protocol - Secure (HTTPS): Used as a secure and encrypted version of web browsing, port 443, WEB SERVERS.

Question 28

Port 443

Answer 28

Hypertext Transfer Protocol- Secure (HTTPS).

Question 29

SMB

Answer 29

Server Message Block (SMB): Used for windows file and printer sharing services, and other types of communication between different devices on our network. Used with NetBIOS, port 445.

Question 30

Port 445

Answer 30

Server Message Block (SMB).

Question 31

RDP

Answer 31

Remote Desktop Protocol (RDP): Provides graphical remote control of another client or server. And provides a full graphical user interface, port 3389, REMOTE ACCESS.

Question 32

Port 3389

Answer 32

Remote Desktop Protocol (RDP).

Question 33

VNC

Answer 33

Virtual Network Computing (VNC): Designed for thin client architectures, port 5900.

Question 34

Port 5900

Answer 34

Virtual Network Computing (VNC).

Question 35

Registered Ports

Answer 35

Ports 1024 to 49151 are considered registered and are usually assigned to proprietary protocols. Registered ports are assigned to companies through IANA.