ISC2 CC Network Security Practice Question
Which of the following is a connectionless, unreliable transport protocol?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
UDP
UDP is connectionless and does not guarantee delivery.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
IP
Why it's wrong here
IP is network layer, not transport.
- ✗
TCP
Why it's wrong here
TCP is connection-oriented and reliable.
- ✓
UDP
Why this is correct
UDP is connectionless and fast but unreliable.
- ✗
ICMP
Why it's wrong here
ICMP is for control messages.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.