TCP/IP Applications Chapter 8 Flashcards
What is netstat used for?
To see the endpoints.
Sees active TCP/IP connections at a glance
What ports do File Transfer Protocol (FTP) use?
Active Port 20/21
Passive Port 21
Define Network Time Protocol (NTP) and its ports
Protocol that gives the time.
Port UDP 53
Define Simple time protocol (SNTP) and its ports
Syncs clocks of devices on a network
UDP 123
Define Trivial Trial Transfer Protocol (TFTP)
Transfers files between servers and clients, unlike FTP, TFTP requires no user login. Devices that need an OS but no local HD often use TFTP to download OS.
Define Internet Group Management Protocol (IGMP)
Protocol that routers communication with hosts to determine a “group” membership in order to determine which computers want to receive a multicast. Once multicast has started IGMP is responsible for maintaining the multicast as well as terminating at completion.
Define Multicast
Sends a packet to a group of interested computers.
Define Simple Mail Transfer Protocol (SMTP) and its port
used to send email on the internet
TCP Port 25
Define Post offices protocol version 3 (POP3) and port
One of the 2 protocols that receives emails from SMTP servers
Port 110
Define internet message access protocol version 4 (IMAP4) and port
Protocol receive email from SMTP server
superiors to POP3, enables users to create folders on the email server and multiple clients to access a single mailbox
Port 143
Define Structured Query Language (SQL)
Language created by IBM that relies on simple English-like statements to form database queries, it enables databases from different manufactures to be queried using a standard syntax
What port does HTTP use?
Port 80
What port does HTTPS use?
Port 443
What port does SSH use?
TCP 22
What port does Telnet use?
TCP 23