Computer Network Tutorial

Introduction of Computer Network Types of Computer Network Network Topology Computer Networking Architecture Transmission Modes (Data Flow) Basic Networking Devices Integrate Services Digital Network (ISDN)


OSI Model TCP/IP Model

Physical Layer

Digital Transmission Analog Transmission Transmission Media Switching

Data Link Layer

Error detection and Error correction Data Link Control Multiple Access Aloha

Network Layer

Network Layer - Logical Address Address Mapping Unicast Routing Protocol

Transport Layer

Process to Process Delivery User Datagram Protocol Transmission Control Protocol Stream Control Transmission Protocol Session Layer and Presentation Layer

Application Layer

Domain Name System Application Protocol E-mail Cryptography


Classes of Routing Protocols Classification of Routing Algorithms Controlled Access Protocols in Computer Networks Differences between IPv4 and IPv6 Fixed and Flooding Routing Algorithms Advantages and Disadvantages of Fibre Optics Cable APIPA Difference between Active and Passive FTP Fiber Optics and its Types Method of Joining and Fusion of Fiber Optic Cable Define Framing in Computer Network Disadvantages of Computer Network Mesh Topology Diagram in Computer Network Ring Topology in Computer Network Star Topology in Computer Networks 4G Mobile Communication Technology Advantages and Disadvantages of LAN Advantages and Disadvantages of MAN Advantages and Disadvantages of WAN Application Layer in OSI Model Cyclic Redundancy Check Example Data link layer in OSI model Difference between Transport and Network Layer Hamming Code Example Network Layer in OSI Model Session Layer in OSI Model Transport Layer in OSI Model Two Port Network in Computer Networks Uses of Computer Networks What is Computer Network What is Framing in a Computer Network Advantages and Disadvantages of Bus Topology Difference between Star Topology and Bus Topology Subnetting in Computer Network Subnetting Questions and Answers What is Bus Topology What is Network Topology and Types in Computer Networks Access Control in Networking Basic Characteristics of Computer Network Benefits of SOCKS5 Proxy in Computer Networks Computer Network viva Questions Difference between BOOTP and RARP Difference Between Network Topologies and Network Protocols Difference between NFC and RFID Difference Between Point-to-Point Link and star Topology Network Differences Between MSS and MTU Differences Between Trunk Port and Access Port Different Modes of Communication in Computer Networks MIME Protocol in Computer Networks Modes of Communication in Computer Networks Network Attack in Computer Network Port Address in Networking Simplest Protocol in Computer Network Sliding Window Protocol in Computer Network Stop And Wait Protocol in Computer Networks TCP 3-Way Handshake Process in Computer Networks What is a Proxy Server What is APPN What is ICMP Protocol What is Point-to-Point Protocol What is Port Address in Networking What is the HDLC Protocol What is VRRP Protocol Difference Between Analog and Digital Signals Difference Between Hub and Repeater Difference between Repeater and Switch Difference Between Transparent Bridge and Source Routing Bridge Source Routing Bridge in Computer Networks Transparent Bridge in Computer Networks Transport Protocol in Computer Networks Types of CSMA in Computer Networks What is Wired and Wireless Networking Network Security in Computer Network Disadvantages of Extranet Difference Between TELNET and FTP Define Protocol in Computer Networks Guided Transmission Media in Computer Network What is a Gateway in a Computer Network IGMP in Computer Networks LAN Protocols in Computer Networks MAN Meaning in Computer Modulation Techniques in Computer Networks Switching in DCN TCP/IP Applications What is IGMP? What is Modem in Networking What is Non-Persistent CSMA Difference between Cell Splitting and Cell Sectoring Forouzen Computer Network Open Loop and Closed Loop Congestion Control Types of Cluster Computing WAP-Wireless Access Point What are the elements of the Transport Protocol Difference between Gateway and Switch Flow Control in Data Link Layer Body Area Network Flooding in Computer Network Token Ring in Computer Networks VoIP in Computer Networks What is Infrared Transmission Congestion Control Techniques Forward Error Correction (FEC) Switching Techniques What is Telnet in Computer Network What are the Types of IPv4 Addresses IEEE 802.6 (DQDB) IEEE 802.15.4 Technology What is HDLC (High-level Data Link Control)? What is SMS Hubbing in Telecom? Circuit Switching in Computer Networks Communication Satellites in Computer Networks Features of HTTP Protocol IMAP4 (Internet Message Access Protocol) Internet Services How to Set up a Wireless Router Internetwork Routing in Computer Networks Distributed Computing System Features of GSM The 802.11 MAC Sublayer Protocol What is IEEE 802.3? What are Hubs and Switches in Computer Networks? What is Modem in a Computer Network? What is multicasting in Computer Networks? GSM -The Mobile Station What is Network Server? Slotted Aloha in Computer Network What is Ethernet in Computer Networks What is Arpanet? Radio Access Network (RAN) TCP 3-Way Handshake Process PING SWEEP (ICMP SWEEP) Print Server Private IP Address Security Services in Computer Networks Protocol Data Unit (PDU) CSMA with Collision Avoidance (CSMA/CA) What is Gateway in Computer Network? Advantages of Networking Data Link Layer Design Issues DHCP in Computer Networks Internet Security Association and Key Management Protocol (ISAKMP) What is Switch Hub? Telnet Full form in Networking Multimedia Systems Quality of Service in Computer Networks What is Carrier Sense Multiple Access (CSMA)? What is Circuit Switching What is Duplex Network? What is Web Protocol Network LAN Technologies Classes in Computer Network Low-Density Parity Check (LDPC) Wireless Internet Service Providers(Wisps) What is Handshaking? Cache Server What Is WSN Network? Check Sum Error Detection Linear Bus Topology Functions of the Transport Layer Infrared Transmission in Computer Networks Digital Signal in Computer Network Digital Data Transmission in Computer Networks Define Checksum with Example Computer Network Security Requirements Brust Errors in Computer Network Back Side Bus (BSB) 2-Dimension Parity Check in Computer Network Router and Brouter Microwave Transmission in Computer Networks Magnetic Media in Computer Network A One-Bit Sliding Window Protocol CDMA-Near-Far Problem Reference Models in Computer Networks Uni-cast, Broadcast, and Multicast in Computer Networks Uses Of Bridges in Computer Networks What are Gateways in Computer Network?

Simplest Protocol in Computer Network

What is a Noiseless Channel?

A noiseless channel is a communication channel that doesn't introduce any errors or distortions to the transmitted signal. In other words, the information that is transmitted through a noiseless channel arrives at the receiver exactly as it was sent by the transmitter.

A noiseless channel is an idealization, as all real-world communication channels introduce some degree of noise or interference that can affect the transmitted signal. However, noiseless channels are useful as a theoretical construct for studying the limits of communication and information theory, and for evaluating the performance of communication systems under ideal conditions.

In practice, engineers try to design communication systems that can mitigate the effects of noise and interference as much as possible, using techniques such as error correction codes, signal processing algorithms, and channel coding schemes.

What is the simplest protocol?

The simplest protocol is the "one-way protocol", where information is transmitted from a sender to a receiver in a one-way communication. This protocol only requires a sender, a receiver, and a communication channel.

In this protocol, the sender sends a message to the receiver, and the receiver simply receives the message without sending any response back to the sender. There are no acknowledgments or error correction mechanisms in this protocol, so if the message is not received correctly, the sender has no way of knowing and cannot resend the message.

While the one-way protocol is simple, it has limited usefulness in real-world applications, where bi-directional communication and error detection and correction are necessary. More complex protocols, such as the two-way protocol, provide bidirectional communication, and can incorporate mechanisms for error detection and correction.

Characteristics of simplest protocol

The simplest protocol, which is the "one-way protocol", has the following characteristics:

  • One-way communication: The protocol allows information to be transmitted in only one direction, from the sender to the receiver.
  • No acknowledgment: The protocol doesn't require the receiver to send any acknowledgment or response back to the sender. Once the message is sent, the sender has no way of knowing if the message was received or not.
  • No error detection or correction: The protocol doesn't incorporate any mechanism for error detection or correction. If the message is not received correctly, the sender has no way of knowing and cannot resend the message.
  • Simple: The protocol is straightforward and easy to implement, with minimum overheads and requirements. It only needs a sender, a receiver, and a communication channel.

Why do we use simplest protocol?

There are some reasons why should we use the simplest protocol. The reasons are as follows:

  • Low complexity: The one-way protocol is straightforward and easy to implement, requiring minimum resources and overheads. It can be used in situations where more complex protocols would be unnecessary or impractical.
  • Limited communication: If the communication between the sender and receiver is one-way, such as in a broadcast or a notification system, then the one-way protocol can be used effectively to transmit information without requiring any response from the receiver.
  • Real-time communication: If the communication needs to be transmitted in real-time, such as in a live video stream or a sensor network, the one-way protocol can be useful as it requires less processing and can transmit data faster.

Process on sender and receiver end

The process on the sender and receiver ends is straightforward and consists of the following basic steps:

Sender End

  1. The sender creates a message that needs to be transmitted.
  2. The message is formatted according to the protocol specifications.
  3. The sender transmits the message over the communication channel.

Receiver End

  1. The receiver listens for incoming messages on the communication channel.
  2. The receiver receives the message transmitted by the sender.
  3. The receiver reads and processes the message.
  4. The communication process ends, as there is no requirement for any response or acknowledgment from the receiver.

Limitation of the simplest protocol

Limitation of the simplest protocol, the one-way protocol, is that it is vulnerable to interception and eavesdropping. Since there is no authentication or encryption in this protocol, anyone who has access to the communication channel can intercept and read the transmitted message.

This limitation makes the one-way protocol unsuitable for transmitting sensitive or confidential information, as it does not provide any security or privacy measures to protect the information from being intercepted or compromised. In such cases, more advanced protocols that incorporate encryption and authentication mechanisms, such as the Secure Sockets Layer (SSL) protocol or the Transport Layer Security (TLS) protocol, are necessary to ensure secure communication.