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Cyber Security Tutorial: A Step-by-Step Guide


What is Cybersecurity?

Lesson - 1

Cyber Security for Beginners

Lesson - 2

How to Become a Cybersecurity Engineer?

Lesson - 3

What is Ethical Hacking?

Lesson - 4

What is Penetration Testing?: A Step-by-Step Guide

Lesson - 5

What Is SQL Injection: How to Prevent SQL Injection

Lesson - 6

How to Become an Ethical Hacker?

Lesson - 7

What Is a Firewall and Why Is It Vital?

Lesson - 8

The Complete Know-How on the

Lesson - 9

A Definitive Guide to Learn the SHA 256 Algorithm

Lesson - 10

What Is a Ransomware Attack and How Can You Prevent It?

Lesson - 11

A Look at the Top 5 Programming Languages for Hacking

Lesson - 12

The Most Informative Guide on What Is an IP Address?

Lesson - 13

The Best Ethical Hacking + Cybersecurity Books

Lesson - 14

10 Types of Cyber Attacks You Should Be Aware in 2022

Lesson - 15

The Top Computer Hacks of All Time

Lesson - 16

Top 6 Cyber Security Jobs in 2022

Lesson - 17

The Best Guide to The Top Cybersecurity Interview Questions

Lesson - 18

What Is a Brute Force Attack and How to Protect Our Data Against It?

Lesson - 19

The Top 8 Cybersecurity Skills You Must Have

Lesson - 20

Your Guide to Choose the Best Operating System Between Parrot OS vs. Kali Linux

Lesson - 21

All You Need to Know About Parrot Security OS

Lesson - 22

The Best and Easiest Way to Understand What Is a VPN

Lesson - 23

What Is NMap? A Comprehensive Tutorial for Network Mapping

Lesson - 24

What Is Google Dorking? Your Way to Becoming the Best Google Hacker

Lesson - 25

Your Best Guide to a Successful Cyber Security Career Path

Lesson - 26

The Value of Python in Ethical Hacking and a Password Cracking Tutorial

Lesson - 27

The Best Guide to Understand What Is TCP/IP Model?

Lesson - 28

What Are Keyloggers and Its Effect on Our Devices?

Lesson - 29

Best Guide to Understand the Importance of What Is Subnetting

Lesson - 30

Your Guide to What Is 5G and How It Works

Lesson - 31

How to Crack Passwords and Strengthen Your Credentials Against Brute-Force

Lesson - 32

A Look at ‘What Is Metasploitable’, a Hacker’s Playground Based on Ubuntu Virtual Machines

Lesson - 33

One-Stop Guide to Understanding What Is Distance Vector Routing?

Lesson - 34

Best Walkthrough for Understanding the Networking Commands

Lesson - 35

Best Guide to Understanding the Operation of Stop-and-Wait Protocol

Lesson - 36

The Best Guide to Understanding the Working and Importance of Go-Back-N ARQ Protocol

Lesson - 37

What Are Digital Signatures: A Thorough Guide Into Cryptographic Authentication

Lesson - 38

The Best Spotify Data Analysis Project You Need to Know

Lesson - 39

A One-Stop Solution Guide to Understand Data Structure and Algorithm Complexity

Lesson - 40

Your One-Stop Guide ‘On How Does the Internet Work?’

Lesson - 41

An Introduction to Circuit Switching and Packet Switching

Lesson - 42

One-Stop Guide to Understanding What Is Network Topology?

Lesson - 43

A Deep Dive Into Cross-Site Scripting and Its Significance

Lesson - 44

The Best Walkthrough on What Is DHCP and Its Working

Lesson - 45

A Complete Look at What a Proxy Is, Along With the Working of the Proxy Server

Lesson - 46

A Detailed Guide to Understanding What Identity and Access Management Is

Lesson - 47

The Best Guide to Understanding the Working and Effects of Sliding Window Protocol

Lesson - 48

The Best Guide That You’ll Ever Need to Understand Typescript and Express

Lesson - 49

Express REST API

Lesson - 50

All You Need to Know About Express JS Middleware

Lesson - 51

An Absolute Guide to Know Everything on Expressions in C

Lesson - 52

A Definitive Guide on How to Create a Strong Password

Lesson - 53

Ubuntu vs. Debian: A Look at Beginner Friendly Linux Distribution

Lesson - 54

Your One-Stop Guide to Learn Command Prompt Hacks

Lesson - 55

Best Walkthrough to Understand the Difference Between IPv4 and IPv6

Lesson - 56

What Is Kali NetHunter? A Deep Dive Into the Hackbox for Android

Lesson - 57

A Perfect Guide That Explains the Differences Between a Hub and a Switch

Lesson - 58

The Best Guide to Help You Understand What Is Network Security

Lesson - 59

What Is CIDR? And Its Importance in the Networking Domain

Lesson - 60
The Best Guide to Understanding the Working and Effects of Sliding Window Protocol

With the establishment of network channels, it has become necessary to understand the basis of the data exchange methods applied to different network devices. This tutorial on ‘Sliding Window Protocol’ is precisely designed to make one understand the working method used in a network model, which governs the exchange of data frames between network devices.

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What Is a Protocol?

In a network model, protocol refers to rules and instructions governing the exchange of data and information between multiple network devices in a network channel.


It provides an easy and reliable way to exchange data in the network model and maintains good security protocols for sharing the data.

Now, go ahead and begin with an introduction to the sliding window protocol.

What Is Sliding Window Protocol?


The sliding window protocol is a method designed in the network model that allows data exchange more efficiently and within the scope of clearly defined steps in the channel.

In the sliding window protocol, some of the most important features that are applied in a network model are as mentioned:

  • This protocol allows sharing multiple data frames from the sender before receiving any acknowledgment from the receiver side.
  • The data frames shared in the channel are defined by the window size mentioned in the network model, which defines the maximum number of frames that can be transmitted at a time from the sender to the receiver side before expecting any acknowledgment.
  • Each of the frames in the network model is assigned a sequence number to increase the transmission efficiency.
  • The data frames shared from the sender to the receiver side are enclosed within a virtual sliding window, which represents that these are awaiting acknowledgment from the receiver side.

Next, you will understand the working of the sliding window protocol in a network model.

Working of the Sliding Window Protocol

The working of the sliding window protocol can be divided into two steps sender steps, and the receiver steps and also some important values are needed in a network model for smooth transmission of the data frames are:

  • Sender and the receiver side
  • Window Size
  • The total data frames to be transmitted
  • Proper sequencing of the frames

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Steps for the Sender Side


  • To begin with, the sender side will share data frames with the receiver side per the window size assigned to the model.
  • The sliding window will appear on the frames transmitted over to the receiver side.
  • Then the sender will wait for an acknowledgment from the receiver side for the shared frames, as mentioned in figure1.


  • When the receiver transmits the acknowledgment of the first transmitted frame, the sliding window will shift from the acknowledged frame.

Now, let’s move on to the steps involved on the receiver side.

Steps for the Receiver Side


  • On receiving the data frames from the sender side, the receiver will use the frames in the network model.
  • After the receiver uses the frame, it will transmit the acknowledgement to the sender side for that data frame.
  • Then, the receiver side will receive the next data frame from the sender side, as mentioned in figure2.

This process continues until all the frames are transmitted from the sender side to the receiver side, and the receiver side transmits the acknowledgment of all the received frames.

Next, in this tutorial, you will look into the advantages and disadvantages caused by applying the sliding window protocol in the network model.

Advantages and Disadvantages of Sliding Window Protocol


  • In this protocol, a sender can share multiple frames and then wait for the acknowledgment.
  • This protocol has much better efficiency in comparison, with low time delay.
  • This protocol requires sorting for increased efficiency and applies full-duplex transmission.

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  • In case the sender does not receive acknowledgement from the receiver side, the network model becomes inefficient.
  • Loss and wastage of bandwidth due to sharing multiple frames simultaneously.

You have now completed this tutorial on the Sliding Window Protocol with this.

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In this tutorial on ‘Sliding Window Protocol, you understood the working of the steps involved in the transmission of data frames from the sender to the receiver side in the network model, along with the effect of applying the method in the network model.

If you want to learn more about the working of the sliding window protocol in the network model, you can refer to Simplilearn’s Cyber Security Expert course. By the end of this expert course, you will become more efficient in understanding various types of protocols in a network model.

Do you have any questions about this tutorial on ‘Sliding Window Protocol’. If yes, feel free to mention them in the comment section at the bottom of this page. The Simplilearn team will help you solve your queries ASAP.

About the Author

Anmol KapoorAnmol Kapoor

Anmol is a Research Analyst who aims to become a Data Scientist one day. He enjoys Data Management systems and analysis. You will find him reading a book when he is not working.

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