Week 10 UAS

Question 1

Transport layer duties?

Answer 1

1. packetizing
2. connection control
3. addressing
4. providing reliability

Question 2

Socket address?

Answer 2

IP address + port number
example:
200.23.56.8:8080

Question 3

2 jenis dari Transport Layer Protocol?

Answer 3

1. Transmission Control Protocol (TCP)
TCP (transmission control protocol) is one of the transport layer protocols in the TCP/IP protocol suite. The unit of data transfer between two devices called a segment.
- process-to-process communication
- full-duplex
- connection oriented
- reliable transport protocol
- more secure
- provide error control mechanism
- provide congestion control

2. User Datagram Protocol (UDP)
UDP is a transport protocol that creates a process-to-process communication. UDP is unreliable and connectionless protocol that requires little overhead and offers fast delivery. The UDP packet is called a user datagram.
- connectionless
- lack of error control
- lack of congestion control
- process-to-process communication
- no flow control
- no error control mechanism except for the checksum
- unreliable transport protocol

Question 4

What is ICMP (Internet Control Message Protocol)

Answer 4

ICMP is one of the main protocols in Internet Protocol Suite. It is used by network devices like routers to send error message indicating for example that a requested service is not available or that a host or router could not be reached.