transport layer

Question 1

TCP

Answer 1

Reliable and connection-oriented, TCP ensures ordered, complete, and error-checked delivery of data, making it suitable for applications like web browsing and email.

Question 2

UDP

Answer 2

Fast but unreliable and connectionless, UDP is ideal for real-time applications like DNS, where speed is essential but lost data isn’t a critical issue.

Question 3

TCP services

Answer 3

Connection establishment (3-way handshake: SYN, SYN-ACK, ACK)

Data reliability through acknowledgment and retransmission of lost segments
Flow control and congestion control

Question 4

UDP Services

Answer 4

Domain Name Service 53

HyperText Transfer Protocol Secured 443