Noisy Data Communication: Definition of Noisy Channels & Its Types for AFCAT 2022
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Noisy Data Communication: Definition of Noisy Channels & Its Types (Computer Science)
Topics
- Definition of Noisy Channels
- Sequence Numbers
- Stop & Wait Automatic Repeat Request
- Go-Back-N Automatic Repeat Request
- Selective Repeat Automatic Repeat Request
Definition of Noisy Channels & Its Types
- Noisy Channel:
- Noisy Channel means that there will be lot of disturbance in the path when data is carried forward from sender to receiver.
- Types:
- Sequence Numbers
- Stop & Wait Automatic Repeat Request
- Go-Back-N Automatic Repeat Request
- Selective Repeat Automatic Repeat Request
Types of Noisy Channel
- Sequence Numbers:
- When data will be sent, special sequence numbers will be added to the field of the data. So that receiver can have a check that data is received fully or missed some of the data packets.
- Go-Back-N Automatic Repeat Request with selective request:
- Here only lost data in the past that receiver has not received, will be sent again to the receiver.
Go-Back-N Automatic Repeat Request with Selective Request
- Stop & Wait Automatic Repeat Request:
- Sender will wait for the acknowledgement for particular time period and if donีt get feedback then it will send the data again.
MCQ
Q1. Which of the following is not a type of Noisy channel of data communication?
Options:
- Go-Back Automatic
- Sequence Numbers
- Stop & Wait
- Sliding Window
Q1. Which of the following is not a type of Noisy channel of data communication?
- Go-Back Automatic
- Sequence Numbers
- Stop & Wait
- Sliding Window
Q2. Which of the following is true statement?
Options:
- Receiver can send response back to the sender if required
- Sender cannot resend the data if lost
- Sender always wait for the error controlled channel to send the data
- Receiver sends the data to various workstations and get the acknowledgement.
Q2. Which of the following is true statement?
Options:
- Receiver can send response back to the sender if required
- Sender cannot resend the data if lost
- Sender always wait for the error controlled channel to send the data
- Receiver sends the data to various workstations and get the acknowledgement.
#Noisy Channel
#Sequence Numbers
#Stop & Wait Automatic Repeat Request
#Go-Back-N Automatic Repeat Request
#Selective Repeat Automatic Repeat Request