Internet Protocol

Question 1

Port 21:

Standard network protocol used to transfer computer files between a client and server on a computer network

Answer 1

FTP

Question 2

Port 22:

Used to log into a remote machine and execute commands.

Answer 2

SSH

Question 3

Port 23:
Used to establish connection to Transmission Control Protocol (TCP) port number 23, where a Telnet server application is listening

Answer 3

Telnet

Question 4

Port 25:

The protocol for mail submission

Answer 4

SMTP

Question 5

Port 53:

Uses TCP port 53 if UDP port 53 is not accepted

Answer 5

DNS

Question 6

Port 80:
Runs on port 80. Ports exist and are part of TCP and UDP. TCP and UDP are layered on top of IP (Internet Protocol) – a medium for sending messages between computers

Answer 6

HTTP

Question 7

Port 110: mail protocol used to receive emails from a remote server to a local email client.

Answer 7

POP3

Question 8

Port 143

Answer 8

IMAP

Question 9

Port 427

Answer 9

SLP

Question 10

Port 443:

Secured version of Hyper Text Transfer Protocol

Answer 10

HTTPS

Question 11

Port 445 137-139:

Used for providing shared access to files, printers, and serial ports and communications between nodes on a network.

Answer 11

SMB

Question 12

Port 548:

Proprietary network protocol that offers file services for Mac OS X and original Mac OS

Answer 12

AFP

Question 13

Port 3389:
Proprietary protocol developed by Microsoft, which provides a user with a graphical interface to connect to another computer over a network connection

Answer 13

RDP