World of Computer Networking Your CCNA start - Transmission Control Protocol (TCP) versus User Datagram Protocol (UDP)

The video tutorial explains the differences between TCP and UDP protocols. TCP is a connection-oriented protocol requiring connection establishment and teardown, making it slower but reliable due to flow control and error recovery. UDP is connectionless, faster, and simpler, with no flow control or retransmissions. The tutorial also provides examples of application layer protocols that use TCP and UDP, such as HTTP, FTP, DNS, and Skype.

Which protocol requires a connection to be established before data transmission?

• DNS

• HTTP

• TCP

• UDP

What is a key reason for TCP being slower than UDP?

• Lack of error recovery

• Connectionless nature

• Larger header size

• Smaller window size

How does TCP handle lost packets during transmission?

• It uses a larger window size

• It ignores them

• It retransmits them

• It switches to UDP

Which of the following protocols typically uses UDP?

• DNS

• IMAP

• FTP

• HTTP

Which application is known to use both TCP and UDP?

• HTTP

• IMAP

• Skype

• FTP