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)

Model

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

Misc

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? How to Set Up a Home Network – A 7-Step Guide GSM in Computer Networks Multicast Routing Protocols in Computer Networks Network Components Types of Ethernet in Computer Networks BGP vs.EIGRP-What's the difference? Green Cloud Computing and its Strategies Packet Switching Router in Computer Network Advantages and Disadvantages of Routers ATM Network Automatic Repeat ReQuest (ARQ) Static Routing Algorithms in Computer Network TDMA – Technology Data Link Layer services provided to the Network Layer Transmission Impairments in Computer Networks Types of Modems What are Elementary Data Link Layer Protocols What is an Ad-hoc Network? What is the IEEE 802.11 Wireless LAN Standards? What Is Tunneling in Computer Networks? What is Twisted Pair Cable

FTP: File Transfer Protocol
2020-10-01 04:21:51

FTP: File Transfer Protocol

File Transfer Protocol

File transfer protocol is commonly called FTP. The most popular service of the Internet is to download the files. In other words, it is to transfer the files from one device to another device on the Internet. Every day thousands of files are transferred from one device to another device on the Internet using FTP. This protocol is also be used to upload the files on the Internet. FTP executes at the top of the TCP/IP stack.

File Transfer Protocol

FTP is also a client-server protocol. Therefore, it establishes two TCP connections between the client and the server in which the first connection is used to control the conservation, and the second connection is used to transfer the files.

FTP Server

A computer that uses FTP to transfer the data is called an FTP server. Any user can access the data that is stored in the FTP server, while some data can be accessed by special users.

FTP is divided into two parts:

1. Anonymous Server

2. Non-Anonymous Server

Telnet

Telnet stands for the Terminal Network. Telnet is a text-based and application layer protocol that is used to access the remote devices via TCP/IP network. Telnet was developed by the Internet Engineering Task Force in 1969. Telnet provides such services that are based on the command-line interface.

File Transfer Protocol

Telnet Concept

Telnet is an oldest internet facility. It allows you to use a remote computer sitting on any computer. It is also called a remote log-in method. Usually, a telnet program gives you a text-based window for another computer. If you have permission to access that system, you can work on it in the same way as you do on your computer. This facility is very useful for those people who want to do such work on other computers, which cannot be done through other facilities like FTP and HTTP.

HTTP (Hypertext Transfer Protocol)

The HTTP is an application layer protocol. It is used to transfer the data over the websites. HTTP is a component of the Internet Protocol Suite. It defines the commands and utilities used to send the data to the web page.

File Transfer Protocol

Features of HTTP

There are three basic features of HTTP:

  1. Connectionless
  2. Media independent
  3. Stateless

Connectionless: The HTTP client initiates the request to the HTTP server, and after a request is made, the client waits for the response. The server responses to the request of the client, and it sends a response to the client. After that, the client disconnects the connection.

Media independent: Any type of data can be sent via HTTP.

Stateless: HTTP is connectionless, and similarly, it is a stateless protocol because the client and server only know about each other during a current request.

HTTPS (Hypertext Transfer Protocol Secure)

HTTPS is an application layer protocol through which secure communication can be done from any website over the Internet. It is a protocol that uses HTTP over connections encrypted by transport-layer security. It is mostly used to secure online shopping and banking websites.

HTTPS uses port 443 to transfer its data.

SNMP (Simple Network Management Protocol)

SNMP was developed by the IETF (Internet Engineering Task Force). It is used to manage the network. It is an internet standard protocol that monitors devices in IP networks, and it also collects and organizes the information of these devices. SNMP is supported by most network devices such as the hub, switch, router, bridge, server, modem, and printer, etc.

The concept of SNMP is based on the manager and agent. A manager is like a host that controls a group of agents, such as routers.

File Transfer Protocol

SNMP Manager: It is a computer system that monitors network traffic by the SNMP agent, and it queries these agents, takes answers, and controls them.

SNMP Agent: It is a software program that is located in a network element. It collects real-time information from the device and passes this information to the SNMP manager.

Management components

It has two components

  1. SMI
  2. MIB
File Transfer Protocol

SNMP Management: It defines the structure of packets that is shared between a manager and an agent. 

SMI (Structure of Management Information): SMI is a network management component that defines the standard rules for the naming object and object type (including range and length) and also shows how to encode objects and values.

MIB (Management Information Base): MIB is the second component of the network management. It is virtual information storage where management information is stored.