Ports and Protocols

Question 1

What port is the File Transfer Protocol (FTP) on

Answer 1

20 and 21

Question 2

What port is Secure Shell (SSH) on

Answer 2

22

Question 3

What port is SSH File Transfer Protocol (SFTP) on

Answer 3

22

Question 4

What port does Telnet use

Answer 4

23

Question 5

What port does Simple Mail Transfer Protocol (SMTP) use

Answer 5

25

Question 6

What port does the Domain Name Service (DNS) use

Answer 6

53

Question 7

What port does the Dynamic Host Configuration Protocol (DHCP) use

Answer 7

67 and 68

Question 8

What port does the Trivial File Transfer Protocol use

Answer 8

69

Question 9

What port does the Hyper Text Transfer Protocol (HTTP) use

Answer 9

80

Question 10

What port does Post Office Protocol v3 (POP3) use

Answer 10

110

Question 11

What port does Network Time Protocol (NTP) use

Answer 11

123

Question 12

What port does the Network Basic Input/Output System
(NetBIOS) use

Answer 12

139

Question 13

What port does the Internet Message Access Protocol (IMAP) use

Answer 13

143

Question 14

What port does the Simple Network Management Protocol (SNMP) use

Answer 14

161

Question 15

What port does the Lightweight Directory Access Protocol (LDAP) use

Answer 15

389

Question 16

What port does Hyper Text Transfer Protocol Secure (HTTPS) use

Answer 16

443

Question 17

What port does the Server Message Block (SMB) use

Answer 17

445

Question 18

What port does System Logging Protocol (Syslog) use

Answer 18

514

Question 19

What port does the Simple Mail Transfer Protocol-Transport Layer Security (SMPT TLS) use

Answer 19

587

Question 20

What port does Lightweight Directory Access Protocol Secure (LDAPS) use

Answer 20

636

Question 21

What port does Internet Message Access Protocol over Secure Socket Layer (IMAP over SSL) use

Answer 21

993

Question 22

What port does Post Office Protocol v3 over Secure Socket Layer (POP3 over SSL) use

Answer 22

995

Question 23

What port does Structured Query Language Server Protocol (SQL) use

Answer 23

1433

Question 24

What port does SQLnet use

Answer 24

1521

Question 25

What port does MySQL use

Answer 25

3306

Question 26

What port does Remote Desktop Protocol (RDP) use

Answer 26

3389

Question 27

What prot does Session Initiation Protocol (SIP) use

Answer 27

5060 and 5061

Question 28

What does File Transfer Protocol (FTP) do

Answer 28

Transfers computer files between a client and server on a computer network (Unsecure)

Question 29

What does Secure Shell (SSH) do

Answer 29

Secure remote access

Question 30

What does SSH File Transfer Protocol do

Answer 30

Provides file access, file transfer, and file management over a secure, reliable data stream

Question 31

What does Telnet do

Answer 31

Provides bidirectional interactive text-oriented communication facility using a virtual terminal connection. Like SSH, but insecure

Question 32

What does Simple Mail Transfer Protocol (SMTP) do

Answer 32

Internet standard for sending electronic mail

Question 33

What does Domain Name Service (DNS) do

Answer 33

It converts domain names to IP addresses.

Question 34

What does Dynamic Host Control Protocol (DHCP) do

Answer 34

Dynamically assigns an IP address and other network configuration parameters to a client.

Question 35

What does Trvial File Transfer Protocol (TFTP) do

Answer 35

Transmits files in both directions of a client-server application. Used for booting an operating system from a local area network file server. It is essentially a stripped-down version of FTP.

Question 36

What does Hyper Text Transfer Protocol (HTTP) do

Answer 36

The foundation of data communication for the World Wide Web (WWW). Designed for distributed, collaborative, and hypermedia presentation across many devices

Question 37

What does Post Office Protocol v3 (POP3) do

Answer 37

Used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection

Question 38

What does the Network Time Protocol (NTP) do

Answer 38

Provides clock synchronization between computer systems over packet-switched, variable-latency data networks

Question 39

What does the Network Basic Input/Output System (NetBIOS) do

Answer 39

Provides services allowing applications on separate computers to communicate over a local area network for file and printer sharing

Question 40

What does the Internet Message Access Protocol (IMAP) do

Answer 40

Provides e-mail clients to retrieve e-mail messages from a mail server over a TCP/IP connection. Allows the end user to view and manipulate the messages as if they are stored locally

Question 41

What does the Simple Network Management Protocol (SNMP) do

Answer 41

Provides collection and organization of information about managed devices on a network. It can modify that information to change device behavior, which is commonly used in network devices.

Question 42

What does the Lightweight Directory Access Protocol (LDAP) do

Answer 42

Open, vendor-neutral, industry standard for accessing and maintaining distributed directory information services. LDAP and Active Directory use this port.

Question 43

What does the Hyper Text Transfer Protocol Secure (HTTPS) do

Answer 43

Foundation of e-commerce on the World Wide Web (WWW). It is designed to add security to the insecure HTTP protocol.

Question 44

What does the Server Message Block (SMB) do

Answer 44

Provides shared access to files, printers, and miscellaneous communication between devices on a network

Question 45

What does the System Logging Protocol (Syslog) do

Answer 45

Used to send logging data back to a centralized server

Question 46

What does the Simple Main Transfer Protocol-Transport Layer Security (SMTP TLS) do

Answer 46

Secure and encrypted way to send emails

Question 47

What does Lightweight Directory Access Protocol Secure (LDAPS) do

Answer 47

Open, vendor-neutral, industry standard for accessing and maintaining distributed directory information services. it provides secure directory services.

Question 48

What does the Internet Message Access Protocol over Secure Socket Layer (IMAP over SSL) do

Answer 48

Secure and encrypted way to receive emails

Question 49

What does the Post Office Protocol v3 over Secure Socket Layer (POP3 over SSL) do

Answer 49

Secure and encrypted way to receive emails

Question 50

What does Structured Query Language Server Protocol (SQL) do

Answer 50

Used for communication from a client to a database engine

Question 51

What does SQLnet do

Answer 51

Used for communication from a client to an Oracle database

Question 52

What does MySQL do

Answer 52

Used for communication from a client to the MySQL database engine

Question 53

What does Remote Desktop Protocol (RDP) do

Answer 53

Provides a user with a graphical interface to connect to another computer over a network connection. The user employs RDP client software; the other computer must run RDP server software. It is a proprietary protocol developed by Microsoft.

Question 54

What does Session Initiation Protocol (SIP) do

Answer 54

Provides signaling and controlling multimedia communication sessions in applications. It is used for internet telephony voice and video calls, VOIP, and instant messaging.