COMPTIA NETWORK+ N10-008 TCP Ports and Protocols Verified Solutions

COMPTIA NETWORK+ N10-008 TCP Ports and Protocols Verified Solutions FTP (File Transfer Protocol) 20, 21 FTP (File Transfer Protocol) A protocol used to move files and folders over a network or the Internet. Unsecured. FTP File Transfer Protocol What ports are for FTP (File Transfer Protocol 20, 21 SSH (Secure Shell) 22 SSH a cryptographic network protocol for operating network services securely over an unsecured network What port is for SSH? 22 SSH Secure Shell SFTP (Secure File Transfer Protocol) 22 SFTP (Secure File Transfer Protocol) Provides file access, file transfer, and file management over any reliable data stream. SFTP Secure File Transfer Protocol What port does SFTP use? 22 What port number does SSH and SFTP share? 22 Telnet 23 Telnet Provides a virtual terminal or remote login across the network that is connection-based. The remote server must be running a Telnet service for clients to connect. Similar to SSH but is insecure. What port uses Telnet? 23 SMTP (Simple Mail Transfer Protocol) 25 SMTP (Simple Mail Transfer Protocol) A communications protocol that enables sending email from a client to a server or between servers. SMTP Simple Mail Transfer Protocol What port uses SMTP? 25 DNS (Domain Name System) 53 DNS (Domain Name System) The service that translates URLs to IP addresses. DNS Domain Name System What port uses DNS? 53 DHCP (Dynamic Host Configuration Protocol) 67, 68 DHCP (Dynamic Host Configuration Protocol) A network service that provides automatic assignment of IP addresses and other TCP /IP configuration information. DHCP Dynamic Host Configuration Protocol What ports are used for DHCP? 67, 68 TFTP (Trivial File Transfer Protocol) 69 TFTP (Trivial File Transfer Protocol) A simple version of FTP that uses UDP as the transport protocol, and does not require a logon to the remote host. TFTP Trivial File Transfer Protocol What port uses TFTP? 69 HTTP (Hypertext Transfer Protocol) 80 HTTP (Hypertext Transfer Protocol) the protocol used for transmitting web pages over the Internet, unsecured HTTP Hypertext Transfer Protocol Port 80 is used for HTTP POP3 (Post Office Protocol version 3) 110 POP3 (Post Office Protocol version 3) A protocol used from retrieving email from a mailbox on the mail server. POP3 Post Office Protocol 3 Port 110 is the well-known port used by: POP3 NTP (Network Time Protocol) 123 NTP (Network Time Protocol) An Internet protocol that enables synchronization of computer clock times in a network of computers by exchanging time signals. NTP Network Time Protocol Port 123, Protocol for clock synchronization between computer systems over packet-switched, variable latency data networks NTP NetBIOS (Network Basic Input/Output System) 137, 138, 139 NetBIOS (Network Basic Input/Output System) An older transport protocol used by Microsoft Windows systems for allowing applications (printing and file sharing) on separate computers to communicate over a LAN. Ports 137-139 NetBIOS IMAP (Internet Message Access Protocol) 143 IMAP (Internet Message Access Protocol) a common protocol for retrieving email messages via the Internet IMAP Internet Message Access Protocol Port 143, Management of electronic mail messages on a server IMAP SNMP (Simple Network Management Protocol) 161, 162 SNMP (Simple Network Management Protocol) An Application-layer protocol used to exchange information between network devices. SNMP Simple Network Management Protocol Ports 161 and 162 SNMP LDAP (Lightweight Directory Access Protocol) 389 LDAP (Lightweight Directory Access Protocol) A communications protocol that defines how a client can access information, perform operations, and share directory data on a server.