Explaining Transport Layer Protocols

Question 1

In TCP and UDP applications, a unique number assigned to a particular application protocol. Server ports are typically assigned well known or registered numbers while client ports use dynamic or ephemeral numbering.

Answer 1

Port

Question 2

Combination of TCP/UDP port number and IP address. A client socket can form a connection with a sever socket to exchange data.

Answer 2

Socket

Question 3

Protocol is TCP/IP suite operating at the transport layer to provide connection oriented guaranteed delivery of packets.

Answer 3

Transmission Control Protocol (TCP)

Question 4

Field in the header of a TCP segment designating the connection statue such as SYN, ACK or FIN

Answer 4

TCP flags

Question 5

Protocol in TCP/IP suite operating at the transport later to provide connectionless non-guaranteed communication

Answer 5

User Datagram Protocol (UDP)

Question 6

Utility that can probe a network to detect which IP addresses are in use by hosts

Answer 6

IP Scanner

Question 7

A highly adaptable network scanner used primarily to scan hosts and ports to locate services and detect vulnerabilities

Answer 7

Nmap Security Scanner

Question 8

Cross platform command took to show network information on a machine running TCP/IP notably active connections and the routing table.

Answer 8

Netstat

Question 9

Utility that can parse the header fields and pay loads of protocols in captured frames for display and analysis

Answer 9

Protocol analyzer