Question

Differentiate between TCP and UDP.

Answer 1

Feature	TCP	UDP
Connection Type	Connection-oriented	Connectionless
Reliability	Reliable: ensures data delivery	Unreliable: no guaranteed delivery
Acknowledgments	Yes (acknowledgment for each packet)	No acknowledgment of packet delivery
Order of Delivery	Yes (maintains order of sent packets)	No (order of delivery not guaranteed)
Flow Control	Yes (implements flow control to manage data transfer)	No (limited flow control, relies on the application)
Error Checking	Yes (error-checking through checksums)	Limited (optional checksum)
Header Size	Larger header size	Smaller header size
Transmission Speed	Slower than UDP due to connection setup	Faster than TCP due to no connection setup
Usage	Reliable data transfer (e.g., file transfer, web browsing)	Real-time applications (e.g., video streaming, online gaming)
Examples	HTTP, FTP, SMTP	DNS, DHCP, VoIP