Ports & Protocols Flashcards

1
Q

Common Network Protocols:

ARP

A

Resolve IP address to MAC address

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2
Q

Common Network Management Protocols:

DHCP

A

udp/67, udp/68

Assigns IP addresses to network devices from a configuration server

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3
Q

Common Network Management Protocols:

DNS

A

udp/53, tcp/53

Convert domain names to IP addresses

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4
Q

Common Application Protocols:

FTP

A

tcp/20, tcp/21

Sends and receives files between systems

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5
Q

Voice over IP Protocols:

H.323

A

tcp/1720 - ITU Telecommunication H.32x protocol series - Voice over IP signaling

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6
Q

Common Application Protocols:

HTTP

A

tcp/80

Web server communication

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7
Q

Common Application Protocols:

HTTPS

A

tcp/443

Web server communication with encryption

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8
Q

Common Network Management Protocols:

ICMP

A

Send management messages between devices

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9
Q

Common Application Protocols:

IMAP4

A

tcp/143

A newer mail client protocol

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10
Q

Voice over IP Protocols:

MGCP

A

udp/2427 - Gateway - Call Agent to Gateway

udp/2727 - Call Agent - Gateway to Call Agent

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11
Q

Common Application Protocols:

NetBIOS

A

udp/137 - NetBIOS name service - Register, remove, and find services by name

udp/138 - NetBIOS datagram service - Connectionless data transfer

tcp/139 - NetBIOS session service - Connection-oriented data tranfer

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12
Q

Common Application Protocols:

POP3

A

tcp/110

Receive mail into a mail client

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13
Q

Common Network Management Protocols:

RDP

A

tcp/3389

Graphical display of remote device

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14
Q

Voice over IP Protocols:

RTP

A

dynamic

Voice over IP media stream

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15
Q

Voice over IP Protocols:

SIP

A

tcp/5061, tcp/5061

Voice over IP signaling protocol

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16
Q

Common Application Protocols:

SMB

A

tcp/445

Windows file transfers and printer sharing

17
Q

Common Application Protocols:

SMTP

A

tcp/25

Transfer email between mail servers

18
Q

Common Network Management Protocols:

SNMP

A

udp/161

Gather statistics and manage network devices

19
Q

Common Network Management Protocols:

SSH

A

tcp/22

Encrypted console login

20
Q

Common Network Protocols:

TCP

A

Connection-oriented network communication

21
Q

Common Network Management Protocols:

Telnet

A

tcp/23

Remote console login to network device

22
Q

Common Application Protocols:

TFTP

A

udp/69

A very simple file transfer application

23
Q

Common Application Protocols:

TLS/SSL

A

tcp/443

Secure protocols for web browsing

24
Q

Common Network Protocols:

UDP

A

Connectionless network communication