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CySA+ > TCP Transmission Control Protocol Ports > Flashcards

TCP Transmission Control Protocol Ports Flashcards

1
Q

What is TCP Port 21?

A

FTP = File Transfer Protocol

Used to transfer files

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2
Q

What is TCP Port 22?

A

SSH/SFTP = Secure Shell/ FTP over SSH

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3
Q

What is TCP Port 23?

A

Telnet

Unsecure remote administration interface

SSH has replaced Telnet as its vulnerable

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4
Q

What is TCP Port 25?

A

SMTP = Simple Mail Transfer Protocol

Allows email servers to send mail

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5
Q

What is TCP Port 53?

A

DNS = Domain Name System

  • Translates IP’s to names and names to IP’s
  • Used for zone transfers
  • DNS is Port 53 on TCP and UDP (different port protocols)
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6
Q

What is TCP Port 80?

A

HTTP = HyperText Transfer Protocol

Web traffic - unsecured version of sending traffic through the web

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7
Q

What is TCP Port 110?

A

POP3 = Post Office Protocol version 3 which is a legacy mailbox access protocol

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8
Q

What is TCP Port 111?

A

RPCBIND = Maps Remote Procedure Call (RPC) services to port numbers in a UNIX-like environment

UNIX-like environment = Unix, Linux, and macOS X

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9
Q

What is TCP Port 135?

A

MSRPC = Advertises what RPC services are available in a Windows environment

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10
Q

What is TCP Port 139?

A

NETBIOS-SSN = NetBIOS Session Service which supports Windows File Sharing with pre-Windows 2000 version hosts

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11
Q

What is TCP Port 143?

A

IMAP = Internet Mail Access Protocol

New version of mail services that replaced POP3

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12
Q

What is TCP Port 443?

A

HTTPS = HyperText Transfer Protocol Secure

Web traffic - secured version of sending traffic through the web

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13
Q

What is TCP Port 445?

A

Microsoft-DS = Supports Windows File Sharing (Server Message Block over TCP/IP) on current Windows networks

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14
Q

What is TCP Port 993?

A

IMAPS = Internet Mail Access Protocol Secure

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15
Q

What is TCP Port 995?

A

POP3S = Post Office Protocol Secure

  • Secured version of POP3 protocol
  • SSL or TLS tunnel will be created between client and server
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16
Q

What is TCP Port 1723?

A

PPTP = Point-to-Point Tunneling Protocol which is a legacy VPN protocol with weak security implementation

Don’t use this anymore, use more secured version like IPsec

17
Q

What is TCP Port 3306?

A

MySQL = MySQL database connection

18
Q

What is TCP Port 3389?

A

RDP = Remote Desktop Protocol which allows for visual logging into a remote system

  • Used primarily for Windows OS
19
Q

What is TCP Port 5900?

A

VNC = Virtual Network Computing remote access service which is open source and used across all systems

  • Similar to RDP but used for other OS
20
Q

What is TCP Port 8080?

A

HTTP-Proxy = HTTP Proxy Service or alternate port for HTTP

  • Web proxy service or alternate that can be used for HTTP

CySA+ (19 decks)

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