Chapter 6 Flash Cards - TCP/IP, Applications, Security
Describe the TCP/IP Transport Layer Function: Multiplexing using ports
Function that allows receiving hosts to choose the correct application for which the data is destined, based on the port number.
Describe the TCP/IP Transport Layer Function: Error Recovery (Reliability)
Process of numbering and acknowledging data with Sequence and Acknowledgment header fields.
Describe the TCP/IP Transport Layer Function: Flow Control using windowing
Process that uses window sizes to protect buffer space and routing devices.
Describe the TCP/IP Transport Layer Function: Connection Establishment and temination
Process used to initialize port numbers and sequence and acknowledgement fields.
Describe the TCP/IP Transport Layer Function: Ordered data transfer and data segmentation
Continuous stream of bytes from an upper-layer process that is “segmented” for transmission and delivered to upper-layer processes at the receiving device, with the bytes in the same order.
What are dynamic port numbers?
Ports allocated by host starting at 1024 because the ports below are reserved for well-known applications.
Give the Protocol and Application for the given Port: 20
TCP/ FTP Data
Give the Protocol and Application for the given Port: 21
TCP/ FTP Control
Give the Protocol and Application for the given Port: 22
TCP/ SSH
Give the Protocol and Application for the given Port: 23
TCP/ Telnet
Give the Protocol and Application for the given Port: 25
TCP/ SMTP
Give the Protocol and Application for the given Port: 53
UDP,TCP/ DNS
Give the Protocol and Application for the given Port: 67, 68
UDP/ DHCP
Give the Protocol and Application for the given Port: 69
UDP/ TFTP
Give the Protocol and Application for the given Port: 80
TCP/ HTTP (WWW)
Give the Protocol and Application for the given Port: 110
TCP/ POP3
Give the Protocol and Application for the given Port: 161
UDP/ SNMP
Give the Protocol and Application for the given Port: 443
TCP/ SSL
Give the Protocol and Application for the given Port: 16,384-32,767
UDP/ RTP-based Voice (VoIP) and Video
Define Connection-Oriented Protocol
A protocol that requires an exchange of messages before data transfer begins or that has a required preestablished correlation between two endpoints.