Ports to Memorize Flashcards

1
Q

TCP: FTP: File Transfer Protocol transfers files from host to host.

A

21

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2
Q

22

A

TCP/UDP: SSH (Secure Shell), SCP (Secure Copy Protocol), SFTP (Secure File Transfer Protocol).

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3
Q

23

A

TCP/UDP: Telnet: Unencrypted method to remotely administer network devices, should not be used.

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4
Q

25

A

TCP:SMTP: Simple Mail Transfer Protocol sends e-mail over the internet.

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5
Q

53

A

TCP/UDP:DNS: Domain Name Service: Used to resolve IPs to host names and vice/versa.

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6
Q

69

A

UDP:TFTP: Trivial FTP is simplified version of FTP to put a file on or get a file from a remote host.

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7
Q

80

A

TCP:HTTP: Hyper-Text Transfer Protocol transmits web page data to a client for unsecured web browsing.

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8
Q

88

A

TCP/UDP:Kerberos: Network authentication using a system of tickets within a Windows domain.

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9
Q

110

A

TCP: POP3: Post Office Protocol v3 used to receive email from a mail server.

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10
Q

119

A

TCP: NNTP: Network News Transfer Protocol used to transport Usenet articles.

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11
Q

135

A

TCP/UDP:RPC/DCOM-scm: Remote procedure call locates DCOM ports requests a service from another computer on the network.

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12
Q

137-139

A

TCP/UDP:NetBIOS: Conducts name-querying, sending of data, and other functions over NetBIOS connection.

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13
Q

143

A

TCP:IMAP: Internet Message Access Protocol receives mail from mail server, more secure than POP3.

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14
Q

161

A

UDP:SNMP: Simple Network Management Protocol remotely monitors network devices.

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15
Q

162

A

TCP/UDP:SNMPTRAP: Sends Trap and Inform requests to the SNMP manager on a network.

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16
Q

389

A

TCP/UDP:LDAP: Lightweight Directory Access Protocol maintains directories of users and other objects.

17
Q

443

A

TCP:HTTPS: Hyper-Text Transfer Protocol Secure transmits web page data to a client over an SSL/TLS-encrypted connection.

18
Q

445

A

TCP:SMB:Server Message Block provides shared access to files and other resources on a network.

19
Q

465/587

A

TCP:SMTP (SSL/TLS): Simple Mail Transfer Protocol with SSL/TLS secured connection.

20
Q

514

A

UDP:Syslog:Conducts computer message logging, especially router and firewall logs.

21
Q

636

A

TCP/UDP:LDAP (SSL/TLS): Lightweight Directory Access Protocol that maintains directories of users and other objects over encrypted SSL/TLS connection.

22
Q

860

A

TCP: iSCSI: Links data storage facilities over IP.

23
Q

989/990

A

TCP:FTPS: File Transfer Protocol Secure transfers files host to host over an encrypted connection.

24
Q

993

A

TCP:IMAP4 (SSL/TLS): Internet Message Access Protocol receives email from a mail server over an SSL/TLS encrypted connection.

25
Q

995

A

TCP: POP3 (SSL/TLS): Post Office Protocol v3 receives email from a mail server using an SSL/TLS encrypted connection.

26
Q

1433

A

TCP:MS-sql-s: Microsoft SQL server is used to receive SQL database queries from clients.

27
Q

1645/1646

A

UDP:RADIUS:Remote Authentication Dial-In User Service is used for authentication and authorization.

28
Q

1701

A

UDP:L2TP: Layer 2 Tunnel protocol is used as an underlying VPN protocol but has no inherent security.

29
Q

1723

A

TCP/UDP:PPTP: Point to Point Tunneling Protocol is an underlying VPN protocol with built-in security.

30
Q

1812/1813

A

UDP:RADIUS: Remote Authentication Dial-In User Service is used for authentication and authorization (1812) and accounting (1813)

31
Q

3225

A

TCP/UDP:FCIP: Fibre Channel IP is used to encapsulate fibre channel frames with TCP/IP packets.

32
Q

3260

A

TCP:iSCSI Target: Listening port for iSCSI-targeting devices when linking data storage facilities over IP.

33
Q

3389

A

TCP/UDP:RDP: Remote Desktop Protocol is used to remotely view and control other Windows systems via a GUI.

34
Q

3868

A

TCP: Diameter: A more advanced AAA protocol that’s a RADIUS replacement.

35
Q

6514

A

TCP:Syslog over TLS: Conducts computer message logging, especially for routers and firewall logs, over a TLS-encrypted connection.