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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

Difference Between TELNET and FTP


Networking protocols like Telnet and FTP (File Transfer Protocol) are used to transfer files between computers on a local network or the internet.

The main purpose of FTP is file sharing between two computers. It enables users to download and upload files to and from local computers and remote servers, respectively. Web developers, administrators, and content producers frequently upload and manage files on web servers using File Transfer Protocol (FTP).

On the other hand, a remote computer's command-line interface can be accessed remotely via the Telnet protocol. It enables users to establish a connection with a distant server and carry out commands as though they were in front of the distant computer physically. Telnet is frequently used for network testing, troubleshooting, and server administration.


ISO has standardized Telnet, a common TCP/IP protocol for virtual terminal services. Under this protocol, keystrokes from the user's keyboard are sent straight to the remote computer, giving the impression that the keystrokes were passed from the keyboard that was physically attached to the computer. First, the client-server establishes a connection link with the remote server. Additionally, the outcome is sent from the distant computer back to the user. Because it appears as though the user is directly connected to the remote computer, the procedure is regarded as transparent to the users.

The telnet client software uses the IP address or domain name of the remote machine to identify it. Because different operating systems may be installed on different machines and because each machine's operating system accepts a combination of special characters as tokens, accessing a remote machine can be challenging. Since we are working with a heterogeneous system, we require a way to identify the kind of computer and the particular terminal emulator we wish to use in order to access it remotely.

This is a Network Virtual Terminal (NVT), a Telnet-defined universal interface. The client Telnet software uses the NVT to convert characters (data or commands) from the local terminal into NVT form so that it can send them over the network. Next, the NVT data and commands are translated by the server Telnet into a format that the remote computer can understand.

Telnet offers these three standard services. First of all, it offers an interface to the remote system that is specified by the previously mentioned Network Virtual Terminal (NVT). The client program does not need to comprehend the internal workings of every potential remote system because it is designed to use the standard interface. Second, Telnet offers a way for options and a set of standard options to be settled by the client and server. Finally, Telnet treats both ends of the connection equally.


The main purpose of File Transfer Protocol (FTP) is to move files from a local computer to a remote computer. With TCP's assistance, the FTP client creates the connection. Multiple clients are able to access the FTP server at once. File naming conventions, directory structures, and the different ways that text and data are represented on two different systems can all cause problems when transferring files to a remote machine.

FTP is more efficient because it establishes two connections among the hosts. Data is transferred over the first connection, and information is controlled (commands and responses) over the second. One line of instruction or response is transferred at a time over the control connection. For data connections, FTP uses port 20, and for control connections, port 21. Throughout the entire file transfer protocol (FTP) session, the control connection stays open while the data connection opens to transfer files and closes when the file is fully transferred.

What to use and when?

Telnet and FTP are utilized in different contexts and for different things. The following guidelines suggest when to use each protocol:

When to use FTP:

  • File transfers between two computers must happen over a local network or the internet.
  • On a remote server, you must manage files by uploading and downloading them, adding and removing directories, and modifying their permissions.
  • File transfer tasks, like syncing files between a local and remote server, must be automated.

Difference between TELNET and FTP

1.TELecommunication NETwork is what TELNET is short for.File Transfer Protocol is referred to as FTP.
2.The command line interface of a distant server can be accessed via TELNET.File uploading and downloading are done via FTP.
3.TELNET uses port 23.FTP uses ports 20 and 21.
4.Only one connection is used by TELNET.FTP creates two connections: one for data transfer and the other for control commands.
5.With TELNET, a remote login is required.With FTP, a remote login isn't required.
6.It only offers general security; it doesn't offer high security.Higher security is offered than with TELNET.
7.It is employed for remote system login.File transfers between systems are accomplished with its help.
8.The protocol is connection-oriented.Additionally, the protocol is connection-oriented.
9.The primary purpose of Telnet is to translate NVT from data into the accepted format.On the other hand, data transfers between clients and servers are the primary use of FTP.
10.TELNET is out of date now.FTP is a widely used tool.
11.Web diagnostics use TELNET less frequently.Web files can be uploaded and downloaded via FTP.


FTP and TELNET are the two kinds of connecting protocols. They were designed to make effective communication between dispersed operating systems possible. FTP and TELNET, both categorized as application-layer protocols, share a single feature, but their distinctions are noticeably more pronounced.

Several features are available to users when utilizing TELNET and FTP. With the former, you can be sure that transferring files between systems is done in a secure way. This feature makes the process of uploading and downloading digital files from websites easier.

However, TELNET operates with a completely different mindset. It accomplishes this by giving users access to command protocols that open remote servers. TELNET requires the establishment of an obligatory remote login connection in order to achieve this goal. Its operation allows clients to access data stored on remote servers with just one created reference.

There is also a notable difference in the level of security between the two. Although FTPs offer sufficient security when transferring files, TELNET's operation could pose serious security risks because it does not encrypt data. Despite the fact that they were both developed with similar objectives in mind, they are very antagonistic to one another due to their fundamental differences.