Which TCP IP protocol operates on ports 20 and 21 and is used for transferring files?

File Transfer Protocol (FTP)
Table 1 Common TCP/IP Protocols and Ports
ProtocolTCP/UDPPort Number
File Transfer Protocol (FTP) (RFC 959)TCP20/21
Secure Shell (SSH) (RFC 4250-4256)TCP22
Telnet (RFC 854)TCP23
Simple Mail Transfer Protocol (SMTP) (RFC 5321)TCP25
Apr 30, 2012

Which TCP IP protocol operates on port 25 and sends email group of answer choices?

SMTP port 25 continues to be used primarily for SMTP relaying. SMTP relaying is the transmission of email from email server to email server. In most cases, modern SMTP email clients (Microsoft Outlook, Mail, Thunderbird, etc.)

Which protocol is used to send email over TCP port 25 and is used by clients to send messages?

SMTP travels over TCP port 25 and is used by clients to send messages.

Which TCP IP protocol operates on port 53 and translates URLs into Web addresses a FTP B SMTP C http D DNS?

Determine Protocols and Network Applications
Table 15-1Protocol Ports
Telnet/SSHPorts 23/22Provides connections to computers over a TCP/IP network
FTP/TFTPPort 20 or 21Transports files over a TCP/IP network
DNSPort 53Translates URLs to IP addresses
DHCPPort 67Automates the assignment of IP addresses on a network
Jan 7, 2022

Is SMTP port 25 UDP or TCP?

Ports. Communication between mail servers generally uses the standard TCP port 25 designated for SMTP.

What is the difference between port 465 and 587?

As a result, port 465 and 587 are both valid ports for a mail submission agent (MSA). Port 465 requires negotiation of TLS/SSL at connection setup and port 587 uses STARTTLS if one chooses to negotiate TLS. The IANA registry was updated to allow legitimate use of port 465 for this purpose.

Which TCP IP protocol translates URLs into web addresses?

Worksheet 1522 Protocols
Protocol DefinitionProtocolDefault Port(s)
Provides connections to computers over a TCP/IP networkSSH/Telnet22/23
Sends e-mail over a TCP/IP networkSMTP25
Translates URLs to IP addressDNS53
Transports web pages over a TCP/IP networkHTTP80
Mar 8, 2022

What protocol translates URLs to IP?

DNS is what translates your familiar domain name (www.google.com) into an IP address your browser can use (173.194. 33.174).

Which of the following protocols uses TCP port 23?

Port 23 is typically used by the Telnet protocol. Telnet commonly provides remote access to a variety of communications systems. Telnet is also often used for remote maintenance of many networking communications devices including routers and switches.

Which protocol uses port 80 and displays web pages?

Port 80 is the port number assigned to commonly used internet communication protocol, Hypertext Transfer Protocol (HTTP). It is the port from which a computer sends and receives Web client-based communication and messages from a Web server and is used to send and receive HTML pages or data.

What is the use of ARP utility in TCP IP?

Key Concept: The TCP/IP arp utility is used by an administrator to inspect or modify a host’s ARP cache table, which contains mappings between TCP/IP host names and IP addresses.

What protocol governs how webpages travel across the Internet?

Hypertext Transfer Protocol (HTTP) Created by Pamela Fox. Whenever you visit a page on the web, your computer uses the Hypertext Transfer Protocol (HTTP) to download that page from another computer somewhere on the Internet.

What is port 81 used for?

Well-known ports
80YesHypertext Transfer Protocol (HTTP) uses TCP in versions 1.x and 2. HTTP/3 uses QUIC, a transport protocol on top of UDP.
81UnofficialTorPark onion routing
82TorPark control
83YesMIT ML Device, networking file system

What is the port 21?

Port 21 is commonly associated with FTP. FTP has been assigned to Port 21 by the Internet Assigned Numbers Authority (IANA). The IANA also oversees global IP address allocation. FTP is often thought of as a “not secure” file transfer protocol.

What is TCP 22 used for?

By default, port 22 is open on all IBM StoredIQ hosts. The port is used for Secure Shell (SSH) communication and allows remote administration access to the VM. In general, traffic is encrypted using password authentication.

What are ports 20 and 21?

Port numbers 21 and 20 are used for FTP. Port 21 is used to establish the connection between the 2 computers (or hosts) and port 20 to transfer data (via the Data channel).

What is the port 443 used for?

Port 443 is a virtual port that computers use to divert network traffic. Billions of people across the globe use it every single day. Any web search you make, your computer connects with a server that hosts that information and fetches it for you. This connection is made via a port – either HTTPS or HTTP port.

What is a port 53?

Port 53 is used by the Domain Name System (DNS), a service that turns human readable names like AuditMyPc.com into IP addresses that the computer understands. Because port 53 is usually open, malicious programs may attempt to communicate on it. PORT 53 – Information. Port Number: 53.

What is TCP 20?

The port 20 is a popular port which is used by the FTP as data transfer. The TCP and UDP port 20 is dedicated for the FTP protocol data transfer. The FTP protocol uses a pair of connections to manage and transmit data.

What are ports in TCP?

A port number is a unique identifier used with an IP address. A port is a 16-bit unsigned integer, and the total number of ports available in the TCP/IP model is 65,535 ports. Therefore, the range of port numbers is 0 to 65535.

What is port 21 used for FTP?

The FTP protocol typically uses port 21 as its main means of communication. An FTP server will listen for client connections on port 21. FTP clients will then connect to the FTP server on port 21 and initiate a conversation. This main connection is called the Control Connection or Command Connection.