Nokia Certified Network Associate (NCNA) — Question 36

Which statement accurately explains the purpose of the TCP protocol and what it provides?

Answer options

• A. The primary purpose of TCP is to provide reliable communications between application services.
• B. The primary purpose of TCP is to provide unreliable communications between application services
• C. The primary purpose of TCP is to provide IP routing between application services.
• D. The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTML.

Correct answer: A

Explanation

The correct answer is A because TCP is designed to provide reliable communication, ensuring that data is delivered accurately and in order. Option B is incorrect since TCP is not characterized by unreliable communication. Options C and D are also incorrect as they misrepresent TCP's role, which does not involve IP routing or defining application layer formats.