Podcast Beta
Questions and Answers
What is the primary goal of reliable data transfer?
What function is assumed for achieving reliable data transfer in the lecture?
How are the sender and receiver sides of the reliable data transfer protocol developed?
What is used to specify the sender and receiver event causing state transition in reliable data transfer protocol?
Signup and view all the answers
What is the main characteristic of the 'state' in reliable data transfer protocol?
Signup and view all the answers
In the context of rdt2.0, what is the purpose of using acknowledgements (ACKs)?
Signup and view all the answers
What action does the sender take upon receiving a negative acknowledgement (NAK) in rdt2.0?
Signup and view all the answers
Why is it necessary for the sender to add a sequence number to each packet in rdt2.0?
Signup and view all the answers
What happens if an ACK/NAK is not received by the sender in rdt2.0?
Signup and view all the answers
What is the purpose of using checksum in rdt2.0?
Signup and view all the answers
Study Notes
Reliable Data Transfer
- The primary goal of reliable data transfer is to ensure that data is delivered correctly and in the correct order.
Achieving Reliable Data Transfer
- The function of achieving reliable data transfer is assumed by the transport layer in the lecture.
Development of Reliable Data Transfer Protocol
- The sender and receiver sides of the reliable data transfer protocol are developed independently.
Specifying Sender and Receiver Event
- Finite state machines are used to specify the sender and receiver event causing state transition in reliable data transfer protocol.
Characteristics of 'State' in Reliable Data Transfer Protocol
- The main characteristic of the 'state' in reliable data transfer protocol is that it is finite, meaning it has a limited number of possible states.
RDT 2.0 Protocol
Purpose of Acknowledgements (ACKs)
- The purpose of using acknowledgements (ACKs) in RDT 2.0 is to confirm receipt of packets.
Action upon Receiving Negative Acknowledgement (NAK)
- Upon receiving a negative acknowledgement (NAK) in RDT 2.0, the sender takes the action of retransmitting the packet.
Importance of Sequence Number
- It is necessary for the sender to add a sequence number to each packet in RDT 2.0 to ensure that packets are delivered in the correct order.
Handling Missing ACK/NAK
- If an ACK/NAK is not received by the sender in RDT 2.0, the sender takes the action of retransmitting the packet.
Purpose of Checksum
- The purpose of using checksum in RDT 2.0 is to detect errors in the received packet and ensure data integrity.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the principles of reliable data transfer in computer networks, including topics such as flow control, congestion control, and the concept of no data loss and no bit errors. It is based on Lecture 8 by Dr. Dina Fawzy.
