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SSCP · Question #1043
SSCP Question #1043: Real Exam Question with Answer & Explanation
The correct answer is C: DNS. DNS relies on connectionless UDP whereas services like FTP, Telnet and SMTP rely on TCP.
Submitted by khalil_dz· Apr 18, 2026Network and Communications Security
Question
Which of the following services relies on UDP?
Options
- AFTP
- BTelnet
- CDNS
- DSMTP
Explanation
DNS relies on connectionless UDP whereas services like FTP, Telnet and SMTP rely on TCP.
Topics
#UDP#DNS#Network Protocols#Transport Layer
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