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Common Computer Ports and Services

Select the service that corresponds to the port listed. These are all ports listed in the CompTIA Pen+ exam.
Feel free to check out my other port quiz: https://www.jetpunk.com/user-quizzes/300682/comptia-ports
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Quiz by
JRBerger
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Last updated: August 21, 2025
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First submittedAugust 18, 2025
Times taken51
Average score21.4%
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20 (TCP, UDP)
21 (TCP, UDP)
22 (TCP, UDP)
23 (TCP, UDP)
25 (TCP, UDP)
53 (UDP)
67 (TCP, UDP)
68 (TCP, UDP)
69 (TCP, UDP)
80 (TCP, UDP)
88 ( TCP, UDP)
110 (TCP, UDP)
123 (TCP, UDP)
135 (TCP, UDP)
136-139 (TCP, UDP)
143 (TCP)
161 (UDP)
162 (TCP, UDP)
389 (TCP, UDP)
443 (TCP, UDP)
445 (TCP)
500 (TCP, UDP)
515 (TCP)
1433 (TCP)
1434 (TCP, UDP)
1521 (TCP)
1812, 1813 (TCP, UDP)
3389 (TCP, UDP)
DHCP client
DHCP server
DNS
FTP control
FTP data
HTTP
HTTPS
IMAP
ISAKMP, IKE
Kerberos
LDAP
LDP print services
Microsoft AD and SMB
Microsoft EPMAP
Microsoft SQL Monitor
Microsoft SQL Server
NetBIOS
NTP
Oracle database listener
POP3
RADIUS
RDP
SMTP (email)
SNMP
SNMP traps
SSH
Telnet
TFTP
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