Exam: 200-301: Cisco Certified Network Associate (CCNA) 0 Likes
How do TCP and UDP fit into a query-responsible model? (CCNA 200-301)
How do TCP and UDP fit into a query-responsible model?
A. TCP avoids using sequencing and UDP avoids using acknowledgments.
B. TCP establishes a connection prior to sending data, and UDP sends immediately.
C. TCP encourages out-of-order packet delivery, and UDP prevents re-ordering.
D. TCP uses error detection for packets, and UDP uses error recovery.
Solution
Correct answer: B. TCP establishes a connection prior to sending data, and UDP sends immediately.
In a query-response model, TCP (Transmission Control Protocol) is typically used for reliable, connection-oriented communication. Before sending data, TCP establishes a connection with the destination device through a three-way handshake. This ensures that the connection is established before data is sent.
On the other hand, UDP (User Datagram Protocol) is a connectionless protocol, which means it does not establish a connection before sending data. Instead, UDP sends data packets immediately, without waiting for a connection to be established. This makes UDP suitable for applications that require fast, best-effort delivery, such as online gaming or video streaming.
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