Common TCP Protocols Flashcards

1
Q

Protocol Acronym Port
Telnet Telnet 23

A

Remote login service

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2
Q

Protocol Acronym Port
Secure Shell SSH 22

A

Secure remote login service

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3
Q

Protocol Acronym Port
SNMP 161-162

A

Manage network devices

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4
Q

Protocol Acronym Port
Hyper Text Transfer Protocol HTTP 80

A

Used to transfer webpages

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5
Q

Protocol Acronym Port
Hyper Text Transfer Protocol Secure HTTPS 443

A

Used to transfer secure webpages

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6
Q

Protocol Acronym Port
Domain Name System DNS 53

A

Lookup domain names

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7
Q

Protocol Acronym Port
Trivial File Transfer Protocol TFTP 69

A

Used to transfer files

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8
Q

Protocol Acronym Port
File Transfer Protocol FTP 20-21

A

Used to transfer files

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9
Q

Protocol Acronym Port
Network Time Protocol NTP 123

A

Synchronize computer clocks

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10
Q

Protocol Acronym Port
Simple Mail Transfer Protocol SMTP 25

A

Used for email transfer

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11
Q

Protocol Acronym Port
Post Office Protocol POP3 110

A

Used to retrieve emails

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12
Q

Protocol Acronym Port
Internet Message Access Protocol IMAP 143

A

Used to access emails

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13
Q

Protocol Acronym Port
Server Message Block SMB 445

A

Used to transfer files

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14
Q

Protocol Acronym Port
Network File System NFS 111, 2049

A

Used to mount remote systems

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15
Q

Protocol Acronym Port
Remote Authentication Dial-In User Service RADIUS 1812, 1813

A

Used for authentication and authorization

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16
Q

Protocol Acronym Port
Bootstrap Protocol BOOTP 67, 68

A

Used to bootstrap computers

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16
Q

Protocol Acronym Port
Kerberos Kerberos 88

A

Used for authentication and authorization

17
Q

Protocol Acronym Port
Lightweight Directory Access Protocol LDAP 389

A

Used for directory services

18
Q

Protocol Acronym Port
Dynamic Host Configuration Protocol DHCP 67, 68

A

Used to configure IP addresses

19
Q

Protocol Acronym Port
Network News Transfer Protocol NNTP 119

A

Used to access newsgroups

19
Q

Protocol Acronym Port
Remote Procedure Call RPC 135, 137-139

A

Used to call remote procedures

20
Q

Protocol Acronym Port
Remote Desktop Protocol RDP 3389

A

Used for remote desktop access

21
Q

Protocol Acronym Port
Identification Protocol Ident 113

A

Used to identify user processes

22
Q

Protocol Acronym Port
Internet Control Message Protocol ICMP 0-255

A

Used to troubleshoot network issues

23
Q

Protocol Acronym Port
Internet Group Management Protocol IGMP 0-255

A

Used for multicasting

24
Q

Protocol Acronym Port
Oracle DB (Default/Alternative) Listener oracle-tns 1521/1526

A

The Oracle database default/alternative listener is a service that runs on the database host and receives requests from Oracle clients.

25
Q

Protocol Acronym Port
Ingres Lock ingreslock 1524

A

Ingres database is commonly used for large commercial applications and as a backdoor that can execute commands remotely via RPC.

26
Q

Protocol Acronym Port
Squid Web Proxy http-proxy 3128

A

Squid web proxy is a caching and forwarding HTTP web proxy used to speed up a web server by caching repeated requests.

27
Q

Protocol Acronym Port
Secure Copy Protocol SCP 22

A

Securely copy files between systems

28
Q

Protocol Acronym Port
Session Initiation Protocol SIP 5060

A

Used for VoIP sessions

29
Q

Protocol Acronym Port
Simple Object Access Protocol SOAP 80, 443

A

Used for web services

30
Q

Protocol Acronym Port
Secure Socket Layer SSL 443

A

Securely transfer files

31
Q

Protocol Acronym Port
Internet Security Association and Key Management Protocol ISAKMP 500

A

Used for VPN connections

31
Q

Protocol Acronym Port
TCP Wrappers TCPW 113

A

Used for access control

32
Q

Protocol Acronym Port
Microsoft SQL Server ms-sql-s 1433

A

Used for client connections to the Microsoft SQL Server.

33
Q

Protocol Acronym Port
Kerberized Internet Negotiation of Keys KINK 892

A

Used for authentication and authorization

34
Q

Protocol Acronym Port
Open Shortest Path First OSPF 89

A

Used for routing

35
Q

Protocol Acronym Port
Point-to-Point Tunneling Protocol PPTP 1723

A

Is used to create VPNs

36
Q

Protocol Acronym Port
Remote Execution REXEC 512

A

This protocol is used to execute commands on remote computers and send the output of commands back to the local computer.

37
Q

Protocol Acronym Port
Remote Login RLOGIN 513

A

This protocol starts an interactive shell session on a remote computer.

38
Q

Protocol Acronym Port
X Window System X11 6000

A

It is a computer software system and network protocol that provides a graphical user interface (GUI) for networked computers.

39
Q

Protocol Acronym Port
Relational Database Management System DB2 50000

A

RDBMS is designed to store, retrieve and manage data in a structured format for enterprise applications such as financial systems, customer relationship management (CRM) systems.