Sim-Ex™ Practice Exams for CCST Cybersecurity: Practice questions

DNS server

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Q8. A hacker attacked your server computer using port 53. Which service uses port 53?

A. Web server

B. DHCP Server

C. DNS Server


Correct Answer: C


DNS server uses UDP for name resolution uses port 53. Web server uses port 80. DHCP uses port 67 by default. FTP uses port 21.

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