PCPP2 Network Programming Practice Question
You are writing a UDP server. What is the main disadvantage of using UDP for high-volume data transmission compared to TCP?
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 does not provide delivery guarantees or ordering.
UDP provides no guarantee of delivery, order, or congestion control, requiring the application to handle these issues.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
UDP packets are always larger than TCP packets.
Why it's wrong here
UDP headers are smaller than TCP headers.
- ✓
UDP does not provide delivery guarantees or ordering.
Why this is correct
UDP is unreliable, whereas TCP provides reliability features.
- ✗
UDP requires more handshake overhead.
Why it's wrong here
UDP has no handshake overhead.
- ✗
UDP is not supported on all operating systems.
Why it's wrong here
UDP is supported on all standard network stacks.
About these practice questions
This PCPP2 question is part of Courseiva's 194-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Python Institute exam blueprint
This PCPP2 practice question is part of Courseiva's free Python Institute 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 PCPP2 exam.