Introduction to Networking: Transport Layer

This video tutorial covers the transport layer in networking, focusing on the two main protocols: TCP and UDP. It explains the functions of the transport layer, including data transport, session establishment, and flow control. The tutorial delves into the details of TCP, highlighting its reliability and sequence control, and contrasts it with UDP, which is connectionless and suitable for real-time applications. The video also discusses port numbers, socket pairs, and the TCP three-way handshake process.

What are the two main protocols operating at the transport layer?

• HTTP and FTP

• TCP and UDP

• DNS and DHCP

• SMTP and IMAP

Which protocol provides reliable data transmission with flow control?

• HTTP

• TCP

• UDP

• FTP

What is the three-way handshake used for in TCP?

• Session establishment

• Error detection

• Flow control

• Data encryption

What does TCP use to ensure data is received in the correct order?

• Port numbers

• Sequence numbers

• Checksum

• IP addresses

What is a key characteristic of UDP?

• Connection-oriented

• High overhead

• Reliable delivery

• Connectionless protocol

Which protocol is best suited for real-time applications?

• FTP

• SMTP

• UDP

• TCP

Which protocol does not guarantee data delivery?

• SMTP

• UDP

• TCP

• FTP

Which port number is commonly used for HTTP?

• 443

• 80

• 110

• 25

What is the purpose of a socket pair?

• To encrypt data packets

• To establish a physical connection

• To manage multiple conversations

• To identify a single IP address

Which of the following is a well-known port number range?

• 65536 to 131071

• 49152 to 65535

• 1024 to 49151

• 0 to 1023