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Network+ > Common Ports > Flashcards

Common Ports Flashcards

1
Q

Telnet - Describe port and use

A

tcp/23

Remote access -Text-based console, nothing is encrypted

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2
Q

SSH - Describe port and use

A

tcp/22

Secure Shell - Remote access - Text-based console, encrypted

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3
Q

DNS - Describe port and use

A

udp/53

Domain Name System - Converts names to IP address

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4
Q

SMTP - Describe port and use

A

tcp/25

Simple Mail Transfer Protocol - Server to server email transfer or client to server, not server to client

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5
Q

SFTP - Describe port and use

A

tcp/22

Secure File Transfer Protocol - provides file system functionality, encrypted using SSH

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6
Q

FTP - Describe port and use

A

tcp/20
tcp/21
File Transfer Protocol - provides file system functionality, no encryption, but requires username/password

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7
Q

TFTP - Describe port and use

A

udp/69

Trivial File Transfer Protocol - no authentication, read and write files over the local network

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8
Q

DHCP - Describe port and use

A

udp/67
udp/68
Dynamic Host Configuration Protocol - assigns IP’s from a pool, IP’s have leases, IP reservations can be configured to give same device the same IP

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9
Q

HTTP - Describe port and use

A

tcp/80

Hypertext Transfer Protocol - web server communications

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10
Q

HTTPS - Describe port and use

A

tcp/443

Hypertext Transfer Protocol Secure - encrypted web server communications

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11
Q

SNMP - Describe port and use

A

udp/161

Simply Network Management Protocol - gather statistics from network devices

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12
Q

RDP - Describe port and use

A

tcp/3389

Remote Desktop Protocol - login to desktop remotely

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13
Q

NTP - Describe port and use

A

udp/123

Network Time Protocol - clock sync

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14
Q

SIP - Describe port and use

A

tcp/5060
tcp/5061
Session Initiation Protocol - real-time voice and video messaging

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15
Q

SMB - Describe port and use

A

tcp/445

Server Message Block - file and print share

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16
Q

POP3 - Describe port and use

A

tcp/110

Post Office Protocol - retrieve email from a mail server

17
Q

IMAP4 - Describe port and use

A

tcp/143

Internet Message Access Protocol - retrieve email from a mail server

18
Q

IPSec - Describe port and use

A

tcp/500

Internet Protocol Security - Encrypts packets between two devices over an IP network

19
Q

NNTP - Describe port and use

A

tcp/119

Network News Transfer Protocol - used for transporting Usenet news articles (netnews) between news servers

Network+ (10 decks)

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