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The network protocol that uses port 21 is FTP (File Transfer Protocol). FTP is commonly used for transferring files between a client and a server on a computer network. Port 21 is specifically designated for FTP control connections. When a user initiates an FTP connection, the client connects to the server's port 21 to establish communication for sending and receiving files. It is important to note that FTP operates in two modes: active mode and passive mode, each using different ports for data transfer.
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An Internet server is running both FTP and HTTP services. How does the server know which of these applications should handle an incoming segment?
If I understand the question aright; different port numbers are used to identify different protocols. Port numbers between 1 and 1023 are well-known numbers and standards define which protocol uses which. FTP uses port number 21, HTTP uses port 80.
IS A NOS is the device inside a computer that connects a computer to the network media Question 21 answers?
NIC
How to use 172.16.0.0 to create 32 subnets?
172.16.0.0 is really a B Class address with 16 network bits and 16 host bits, i.e. Network Address 172.16.0.0 has 255.5255.0.0 as Subnet mask in Classful Addressing. To create 32 (25) subnets we will use first five bits for Network part and will leave 3 bits as Host bits in third octet. Now Addressing will be:Network Address: 172.16.0.0\21 or 172.16.0.0 Subnet Mask: 255.255.248.0First two networks will be : (1) 172.16.0.0-172.16.7.255\21, (2) 172.16.8.0-172.16.15.255\21 and last two networks will be (1) 172.16.240.0-172.16.247.255\21, (2) 172.16.248.0-172.16.255.255\21.(Note to use Zero subnet - remember to use IP SUBNET ZERO command.)
Difference between osi and tcpip model?
The main differences between the two models are as follows: 1.OSI is a reference model and TCP/IP is an implementation of OSI model.2.TCP/IP Protocols are considered to be standards around which the internethas developed.The OSI model however is a "generic, protocol-independent standard."3.TCP/IP combines the presentation and session layer issues into itsapplication layer.4.TCP/IP combines the OSI data link and physical layers into the networkaccess layer.5.TCP/IP appears to be a simpler model and this is mainly due to the fact thatit has fewer layers.6.TCP/IP is considered to be a more credible model- This is mainly due to the fact because TCP/IP protocols are the standards around which the internet was developed therefore it mainly gains creditability due to this reason. Where as in contrast networks are not usually built around the OSI model as it is merely used as a guidance tool. 7.The OSI model consists of 7 architectural layers whereas the TCP/IP onlyhas 4 layers. 8.The TCP/IP design generally favors decisions based on simplicity, efficiency and ease of implementation
How old is Ping Ping?
He was only like 21.
What is the purpose for port 20?
TCP port 20 is used by FTP (File Transfer Protocol) for data transfer. FTP also uses port 21.
Which protocol utilizes port 21?
That is FTP
What is a tcp ip protocol used for performing file transfers?
The protocol is FTP and the port number 21 conquerorthecomputer.blogspot.com
What is the services and protocol for the following ports port 21 port 25 port 80 and port 110?
21 port - FTP (File Transfer Protocol) 25 port - SMTP (Simple Mail Transfer Protocol) 110 port - POP3 (Post Office Protocol used by email clients) 80 port - HTTP (World wide web Portocol) Services: port 21- FTP, port 25- Secure shell, Port 80- Web Server and port 110-Web Server Protocol: port 21-FTP, port 25- SSH, port 80- HTTP and port 110- POP2
What is the difference between FTP and SFTP?
When we send any data with the help of FTP over the internet , it usually transmit in plain text ....it means no encrption & anybody can easily read it .. But in SFTP , all the data encrypt & then transmit... Ftp works on port number 20 & 21 where 20 use for data & 21 use for control while SFTP works on port number 115. There are actually three SFTP protocols. 1. Serial File Transfer Protocol, a protocol used to transfer files between a PC and an embedded device using RS-232 or similar serial protocols. This protocol doesn't use a tcp/ip stack. 2. Simple File Transfer Protocol, an unsecured and rarely-used file transfer protocol from the early days of the Internet. This protocol uses tcp port 115. 3. Secure File Transfer Program, a network protocol designed to provide secure file transfer and manipulation facilities over SSH. This protocol uses tcp port 22 and is the more common meaning when using "SFTP".
What are the service and protocol for port 21?
FTP The service used over FTP is Filetransfer..!!
An Internet server is running both FTP and HTTP services. How does the server know which of these applications should handle an incoming segment?
If I understand the question aright; different port numbers are used to identify different protocols. Port numbers between 1 and 1023 are well-known numbers and standards define which protocol uses which. FTP uses port number 21, HTTP uses port 80.
Give the service and protocol for the following ports port 21 port 25 port 80 and port 110?
port 21 FTP port 25 E-mail SMTP port 80 web server HTTP port 110 E-mail POP3
What is ip 21?
If you are refering to port 21 (networking) then it is the port used by the FTP process (File Transfer Protocol). The person may be referring to AspenTech ip.21 which is a process control historian. See related link.
What is the network port numbers?
If a network address is thought of as a physical address for a building then a port would be a room within the building. THe function of a port is to allow software to listen for or send out communication that is specifically related to it's function. For example, most internet (http) traffic is on port 80, FTP (File Transfer Protocol) sends and listens on Port 21, other services use other ports. This allows a single computer with a single IP address to be both a web server and a file server.
What is the default port number for the FTP service?
In networking FTP uses both ports 21 and 22.
What port does ftp use?
Generally port 21 is for FTP 22 for FTP using SSH 990 FTP using SSL
