Common UDP Protocols

Question 1

Protocol Acronym Port
Domain Name System DNS 53

Answer 1

It is a protocol to resolve domain names to IP addresses.

Question 2

Protocol Acronym Port
Trivial File Transfer Protocol TFTP 69

Answer 2

It is used to transfer files between systems.

Question 3

Protocol Acronym Port
Network Time Protocol NTP 123

Answer 3

It synchronizes computer clocks in a network.

Question 4

Protocol Acronym Port
Simple Network Management Protocol SNMP 161

Answer 4

It monitors and manages network devices remotely.

Question 5

Protocol Acronym Port
Routing Information Protocol RIP 520

Answer 5

It is used to exchange routing information between routers.

Question 6

Protocol Acronym Port
Internet Key Exchange IKE 500

Answer 6

Internet Key Exchange

Question 7

Protocol Acronym Port
Bootstrap Protocol BOOTP 68

Answer 7

It is used to bootstrap hosts in a network.

Question 8

Protocol Acronym Port
Dynamic Host Configuration Protocol DHCP 67

Answer 8

It is used to assign IP addresses to devices in a network dynamically.

Question 9

Protocol Acronym Port
MySQL MySQL 3306

Answer 9

It is an open-source database management system.

Question 9

Protocol Acronym Port
Telnet TELNET 23

Answer 9

It is a text-based remote access communication protocol.

Question 10

Protocol Acronym Port
Terminal Server TS 3389

Answer 10

It is a remote access protocol used for Microsoft Windows Terminal Services by default.

Question 11

Protocol Acronym Port
NetBIOS Name netbios-ns 137

Answer 11

It is used in Windows operating systems to resolve NetBIOS names to IP addresses on a LAN.

Question 12

Protocol Acronym Port
Microsoft SQL Server ms-sql-m 1434

Answer 12

Used for the Microsoft SQL Server Browser service.

Question 13

Protocol Acronym Port
Universal Plug and Play UPnP 1900

Answer 13

It is a protocol for devices to discover each other on the network and communicate.

Question 14

Protocol Acronym Port
PostgreSQL PGSQL 5432

Answer 14

It is an object-relational database management system.

Question 15

Protocol Acronym Port
Virtual Network Computing VNC 5900

Answer 15

It is a graphical desktop sharing system.

Question 16

Protocol Acronym Port
X Window System X11 6000-6063

Answer 16

It is a computer software system and network protocol that provides GUI on Unix-like systems.

Question 17

Protocol Acronym Port
Syslog SYSLOG 514

Answer 17

It is a standard protocol to collect and store log messages on a computer system.

Question 18

Protocol Acronym Port
Internet Relay Chat IRC 194

Answer 18

It is a real-time Internet text messaging (chat) or synchronous communication protocol.

Question 19

UDP is a ___________ protocol

Answer 19

connectionless protocol.
which means it does not establish a virtual connection before transmitting data. Instead, it sends the data packets to the destination without checking to see if they were received.

Question 20

UDP (slower or faster)?? than TCP and )(more or less reliable)??

Why?

Answer 20

Faster than TCP
Less reliable than TCP

Because it is connectionless, there is no guarantee that the packets will reach their destination.

Question 21

Protocol Acronym Port
OpenPGP OpenPGP 11371

Answer 21

It is a protocol for encrypting and signing data and communications.

Question 22

Protocol Acronym Port
Internet Protocol Security IPsec 500

Answer 22

IPsec is also a protocol that provides secure, encrypted communication. It is commonly used in VPNs to create a secure tunnel between two devices.

Question 23

Protocol Acronym Port
Internet Key Exchange IKE 11371

Answer 23

It is a protocol for encrypting and signing data and communications.

Question 24

Protocol Acronym Port
X Display Manager Control Protocol XDMCP 177

Answer 24

XDMCP is a network protocol that allows a user to remotely log in to a computer running the X11.