Port Number Quiz
See how well you know default TCP and UDP ports in 10 minutes. Get a quick, no sign up score from 16 items that builds confidence for setup and troubleshooting.
08:30
Scale Explorer
How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking
See How You Compare
Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Below is a preview of how scores are typically distributed across each scale.
Port Number Knowledge (PNK)
Port Number Knowledge (PNK)
Average
10
Normal range
7.5 — 12.5
min.
0
max.
16
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS
Example Questions From the Test
- POP3
- IMAP
- SMTP
- NNTP
- 53
- 68
- 69
- 67
- 110
- 993
- 995
- 143
WHAT THE TEST MEASURES
About This Assessment
Port Number Quiz - Symptoms and Signs
How well do you know the default ports behind web browsing, email, remote access, networking, directories, and databases? This free 16-question port number quiz combines quick trivia with practical configuration and troubleshooting scenarios. Choose the best answer for each question, then use your total to gauge your knowledge of common TCP and UDP service ports. No sign-up is needed. Services can be configured to use nonstandard ports, so questions refer to established defaults.
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