Which two protocols are connection-oriented? (Choose two.)
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A. B. C. D.BC
Point-to-Point Protocol (PPP) and Transmission Control Protocol (TCP) are a connection-oriented protocols.
The correct answers are C. TCP and B. PPP.
TCP (Transmission Control Protocol) is a connection-oriented protocol that is widely used for data transmission over the internet. It provides reliable, ordered, and error-checked delivery of data between applications running on hosts communicating over IP networks. TCP establishes a connection between two endpoints, sets up parameters such as the maximum segment size, and performs flow control and error recovery to ensure the data is transmitted accurately and in order. Once the communication is complete, the connection is terminated.
PPP (Point-to-Point Protocol) is a protocol used to establish a direct connection between two nodes. It is often used to connect a computer to an internet service provider (ISP) using a phone line. PPP is also a connection-oriented protocol that establishes a session before transmitting data. It provides authentication, encryption, and compression services for the data being transmitted. Like TCP, PPP establishes a connection, sets up parameters, and terminates the connection when the communication is complete.
Ethernet and UDP are connectionless protocols. Ethernet is used for local area network (LAN) communication and provides a basic level of reliability through error checking and retransmission of data frames. However, Ethernet does not establish a connection or provide flow control, making it a connectionless protocol.
UDP (User Datagram Protocol) is a connectionless protocol that is commonly used for real-time applications such as video streaming, online gaming, and voice over IP (VoIP). Unlike TCP and PPP, UDP does not establish a connection before transmitting data. It does not provide error recovery or flow control, making it a lightweight protocol that is suitable for applications where speed is more important than reliability.
In conclusion, TCP and PPP are connection-oriented protocols that establish a connection before transmitting data, while Ethernet and UDP are connectionless protocols that do not establish a connection before transmitting data.