Ports & Protocols

Question 1

File Transfer Protocol (FTP)

Answer 1

Port 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

Question 3

Secure File Transfer Protocol (SFTP)

Answer 3

Port 22 Provides secure file transfer

Question 4

Telnet

Answer 4

Port 23 Provides insecure remote control of another machine using a text-based environment

Question 5

Simple Mail Transfer Protocol (SMTP)

Answer 5

Port 25 Provides the ability to send emails over the network

Question 6

Domain Name Service (DNS)

Answer 6

Port 53 Converts domain names to IP addresses, and IP address to domain names

Question 7

Dynamic Host Control Protocol (DHCP)

Answer 7

Port 67, 66 Automatically provides network parameters to your clients, such as their assigned IP address, subnet mask, default gateway, and the DNS server they should use

Question 8

Trivial File Transfer Protocol (TFTP)

Answer 8

Port 69 Used as a lightweight file transfer method for sending configuration files or network booting of an operating system

Question 8

Hypertext Transfer Protocol (HTTP)

Answer 8

Port 80 Used for insecure web browsing

Question 9

Post Office Protocol Version Three (POP3)

Answer 9

Port 110 Used for receiving incoming emails

Question 10

Network Time Protocol (NTP)

Answer 10

Port 123 Used to keep accurate time for clients on a network

Question 11

Network Basic Input/Output System (NetBIOS)

Answer 11

Port 139 Used for file or printer sharing in a Windows network

Question 12

Internet Mail Application Protocol (IMAP)

Answer 12

Port 143 A newer method of retrieving incoming emails which improves upon the older POP3

Question 13

Simple Network Management Protocol (SNMP)

Answer 13

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

Question 14

Lightweight Directory Access Protocol (LDAP)

Answer 14

Port 389 Used to provide directory services to your network

Question 15

Hypertext Transfer Protocol - Secure (HTTPS)

Answer 15

Port 443 Used for secure web browsing

Question 16

Server Message Block (SMB)

Answer 16

Port 445 Used for Windows file and printer sharing services

Question 17

System Logging Protocol (Syslog)

Answer 17

Port 514 Used to send logging data back to a centralized server

Question 18

Simple Mail Transfer Protocol Transport Layer Security (SMTP TLS)

Answer 18

Port 587 Secure and encrypted way to send emails

Question 19

Lightweight Directory Access Protocol - Secure (LDAPS)

Answer 19

Port 636 Provides secure directory service

Question 20

Internet Message Access Protocol over SSL (IMAP over SSL)

Answer 20

Port 993 Secure and encrypted way to receive emails

Question 21

Post Office Protocol Version 3 over SSL (POP3 over SSL)

Answer 21

Port 995 Secure and encrypted way to receive emails

Question 22

Structured Query Language Server Protocol (SQL)

Answer 22

Port 1433 Used for communication from a client to the database engine

Question 23

SQLnet Protocol

Answer 23

Port 1521 Used for communication from a client to an Oracle database

Question 24

MySQL

Answer 24

Port 3306 Used for communication from a client to the MySQL database engine

Question 25

Remote Desktop Protocol (RDP)

Answer 25

Port 3389 Provides graphical remote control of another client or server. Provides a full graphical user interface.

Question 26

Session Initiation Protocol (SIP)

Answer 26

Port 5060, 5061 Used to initiate VoIP and video calls