ports

Question 1

What does POP stand for? What is it?

Answer 1

Post Office Protocol

a protocol for receiving email by downloading it to your computer from a mailbox on the server of an internet service provider.

Question 2

what port is used for POP3?

Answer 2

TCP 110

Question 3

What does IMAP4 stand for?

Answer 3

Internet Message Access Protocol Version 4 (IMAP4)

Question 4

What is IMAP used for?

Answer 4

Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection.

Question 5

what port is used for IMAP?

Answer 5

TCP 143

Question 6

What is Telnet?

Answer 6

Telnet is an application protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. User data is interspersed in-band with Telnet control information in an 8-bit byte oriented data connection over the Transmission Control Protocol (TCP).

Question 7

what port is used for Telnet?

Answer 7

TCP 23

Question 8

What does RDP stand for?

Answer 8

Remote Desktop Protocol

Question 9

What port is used for RDP?

Answer 9

TCP 3389

Question 10

What is port TCP 3389 used for?

Answer 10

RDP - Remote Desktop Protocol

Question 11

What is the TCP 110 port used for?

Answer 11

POP3

Question 12

What is port TCP 143 used for?

Answer 12

IMAP - Internet Message Access Protocol

Question 13

What is port TCP 23 used for?

Answer 13

Telnet

Question 14

What is SMB?

Answer 14

Server Message Block

Protocol used by Microsoft Windows.
File sharing, Printer Sharing.

Also called CIFS (Common Internet File System)

Question 15

What port is reserved for SMB?

Answer 15

TCP 445

Question 16

What is port TCP 445 reserved for?

Answer 16

SMB - Server Message Block

Protocol used by Microsoft Windows.
File sharing, Printer Sharing.

Also called CIFS (Common Internet File System)

Question 17

What is AFP?

Answer 17

Apple Filing Protocol - File services in MacOS

File management - Copy, move, delete files etc.
Works in conjunction with SLP (Service Location Protocol).

Question 18

what port is reserved for AFP?

Answer 18

TCP 548

Question 19

What is the TCP 548 port reserved for?

Answer 19

Apple Filing Protocol - File services in MacOS

Question 20

What is DHCP?

Answer 20

Dynamic Host Configuration Protocol.

Automated configuration of IP address, subnet mask and other options.

Question 21

What port is reserved for DHCP?

Answer 21

The DHCP server uses UDP ports 67 and 68. The port number 68 is used for the DHCP client and 67 is used for the DHCP server.

Question 22

what is the UDP 67 port reserved for?

Answer 22

DHCP - Dynamic Host Configuration Protocol

Question 23

What is the UDP 68 port reserved for?

Answer 23

DHCP - Dynamic Host Configuration Protocol

Automated configuration of IP address, subnet mask and other options.

Question 24

What is LDAP?

Answer 24

Lightweight Directory Access Protocol

Store and retrieve information in a network directory.

Commonly used in Microsoft Active Directory.

Question 25

what port is reserved for LDAP?

Answer 25

TCP 389

Question 26

what is the TCP 389 port reserved for?

Answer 26

LDAP - Lightweight Directory Access Protocol Store and retrieve information in a network directory. Commonly used in Microsoft Active Directory.

Question 27

What is SNMP?

Answer 27

Simple Network Management Protocol Gather statistics from network devices.

Question 28

What port is reserved for SNMP?

Answer 28

UDP/161 - Queries UDP/162 - Traps

Question 29

what is the UDP 161 port reserved for?

Answer 29

SNMP - Simple Network Management Protocol UDP/161 - Queries UDP/162 - Traps

Question 30

What is the UDP 162 port reserved for?

Answer 30

SNMP - Simple Network Management Protocol UDP/161 - Queries UDP/162 - Traps

Question 31

What does SLP stand for?

Answer 31

Service Location Protocol Populates the list of available devices. Works in conjunction with AFP.

Question 32

What port is reserved for SLP?

Answer 32

TCP/427 and UDP/427

Question 33

what is FTP?

Answer 33

File transfer protocol - Transfers files between systems.

Question 34

What port is reserved for FTP?

Answer 34

TCP/20 - Active mode data port. TCP/21 - Control of communication.

Question 35

what is the tcp 20 port reserved for?

Answer 35

FTP - File transfer protocol. TCP/20 - Active mode data port.

Question 36

What is the TCP 21 port reserved for?

Answer 36

FTP - File transfer protocol. TCP/21 - Control of communication. Transfers files between systems.

Question 37

What is NetBIOS?

Answer 37

NetBIOS (/ˈnɛtbaɪɒs/) is an acronym for Network Basic Input/Output System. It provides services related to the session layer of the OSI model allowing applications on separate computers to communicate over a local area network.

Question 38

What does TCP stand for?

Answer 38

Transmission Control Protocol (TCP)

Question 39

What does UDP stand for?

Answer 39

User Datagram Protocol (UDP)

Question 40

What is SMTP?

Answer 40

Simple Mail Transfer Protocol (SMTP) used for email routing between mail servers

Question 41

What is DNS?

Answer 41

Domain Name System he Domain Name System (DNS) is the hierarchical and decentralized naming system used to identify computers, services, and other resources reachable through the Internet or other Internet Protocol (IP) networks. The resource records contained in the DNS associate domain names with other forms of information. These are most commonly used to map human-friendly domain names to the numerical IP addresses computers need to locate services and devices using the underlying network protocols, but have been extended over time to perform many other functions as well. The Domain Name System has been an essential component of the functionality of the Internet since 1985.

Question 42

what port is reserved for DNS?

Answer 42

TCP 53

Question 43

what is the TCP 53 port reserved for?

Answer 43

DNS - Domain Name System

Question 44

what port is reserved for http?

Answer 44

TCP 80

Question 45

what is the TCP 80 reserved for?

Answer 45

HTTP

Question 46

what port is reserved for https?

Answer 46

TCP 443

Question 47

what is the TCP 443 port reserved for?

Answer 47

https

Question 48

what are ports 137-139 reserved for?

Answer 48

NetBIOs

Question 49

what ports are reserved for NetBIOs?

Answer 49

TCP & UDP 137-139