mediumMultiple ChoiceObjective-mapped
200-901 Practice Question: A developer is writing an application that needs…
A developer is writing an application that needs to send a large amount of data reliably over a network. Which transport layer protocol should the developer use?
⚠ Common exam trap
Cisco often tests the distinction between transport-layer protocols (TCP vs. UDP) and higher-layer protocols (HTTP), so the trap here is that candidates might choose HTTP because it is commonly used for data transfer, forgetting that it is not a transport-layer 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
✓
TCP
TCP (Transmission Control Protocol) is the correct choice because it provides reliable, connection-oriented data delivery with acknowledgments, retransmission, and sequencing. This ensures that large amounts of data are transmitted without loss or corruption, which is critical for applications requiring data integrity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
TCP
Why this is correct
TCP ensures reliable data transfer through acknowledgments and retransmissions.
- ✗
ICMP
Why it's wrong here
ICMP is used for diagnostic purposes like ping, not for data transfer.
- ✗
HTTP
Why it's wrong here
HTTP is an application layer protocol that runs over TCP; it is not a transport protocol.
- ✗
UDP
Why it's wrong here
UDP is unreliable and does not guarantee delivery, which is not suitable for large data that must arrive intact.
Visual reference
Go deeper
Related to this question
About these practice questions
Courseiva writes every 200-901 question from scratch — 989 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 practice question is part of Courseiva's free Cisco 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 200-901 exam.