Transport Services and Protocols Quiz

Which layer provides logical communication between application processes running on different hosts?

• Data Link Layer

• Transport Layer

• Physical Layer

• Network Layer

Which transport protocols are available to Internet applications?

• TCP, HTTP

• UDP, FTP

• TCP, UDP

• IP, ICMP

In the household analogy, what do the processes represent?

• Postal service

• Houses

• Kids

• Letters in envelopes

Which transport protocol provides reliable, in-order delivery?

• HTTP

• DNS

• UDP

• TCP

What is the purpose of UDP in Internet transport protocols?

• Connection setup

• Best-effort service

• Reliable, in-order delivery

• Congestion control

How is demultiplexing done in UDP?

• Using source port number

• Using 4-tuple

• Using destination port number

• Using source IP address

What is the main advantage of UDP over TCP?

• Reliability

• Congestion control

• Connection establishment

• No handshaking

What is the purpose of checksum in UDP?

• Detect errors in transmitted segments

• Ensure reliable delivery

• Establish connections

• Control congestion

What is the main drawback of UDP?

• High overhead

• Complexity

• Low performance

• No guarantee of delivery

What is the benefit of pipelining in transport protocols?

• Improves security

• Increases reliability

• Reduces latency

• Allows multiple in-flight packets