Common TCP/UDP Ports Flashcards

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1
Q

Port 20/21: Which Protocol? TCP or UDP?

A

FTP = File Transfer Protocol, TCP

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2
Q

Port 22: Which Protocol? TCP or UDP?

A

SSH = Secure Shell, TCP

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3
Q

Port 23: Which Protocol? TCP or UDP?

A

Telnet, TCP

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4
Q

Port 25: Which Protocol? TCP or UDP?

A

SMTP= Simple Mail Transfer Protocol, TCP

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5
Q

Port 53: Which Protocol? TCP or UDP?

A

DNS = Domain Name System, TCP/UDP

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6
Q

Port 67/68: Which Protocol? TCP or UDP?

A

DHCP = Dynamic Host Configuration Protocol, UDP

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7
Q

Port 69: Which Protocol? TCP or UDP?

A

TFTP = Trivial File Transfer Protocol, UDP

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8
Q

Port 80: Which Protocol? TCP or UDP?

A

HTTP = Hypertext Transfer Protocol, TCP

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9
Q

Port 110: Which Protocol? TCP or UDP?

A

POP3 = Post Office Protocol, TCP

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10
Q

Port 123: Which Protocol? TCP or UDP?

A

NTP = Network Time Protocol, UDP

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11
Q

Port 137/138/139: Which Protocol? TCP or UDP?

A

Net Bios, TCP/UDP

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12
Q

Port 143: Which Protocol? TCP or UDP?

A

IMAP = Internet Message Access Protocol, TCP

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13
Q

Port 161/162: Which Protocol? TCP or UDP?

A

SNMP = Simple Network Management Protocol, TCP/UDP

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14
Q

Port 179: Which Protocol? TCP or UDP?

A

BGP = Border Gateway Protocol, TCP

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15
Q

Port 389: Which Protocol? TCP or UDP?

A

LDAP = Lightweight Directory Access Protocol, TCP/UDP

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16
Q

Port 443: Which Protocol? TCP or UDP?

A

HTTPS = Secure Hypertext Transfer Protocol, TCP, HHTP over SSL/TLS

17
Q

Port 636: Which Protocol? TCP or UDP?

A

LDAPS = Secure Lightweight Directory Access Protocol, TCP/UDP, LDAP over SSL/TLS

18
Q

Port 989/990: Which Protocol? TCP or UDP?

A

FTPS = Secure File Transfer Protocol, TCP, FTP over SSL/TLS

19
Q

Port 515: Which Protocol? TCP or UDP?

A

LPD = Line Print Daemon, TCP

20
Q

Ports 6000 - 6063: Which Protocol? TCP or UDP?

A

X Window, TCP

21
Q

Port 2049: Which Protocol? TCP or UDP?

A

NFS = Network File System, TCP