Review of Networking Concepts Flashcards
What are the two building blocks of a network?
Nodes and Links
What are some common network topologies?
- two-node point to point topology
- linear topology
- bus topology
- ring topology
- dual ring topology
- star topology
- mesh topology
What are the two problems for building large networks?
How can the capacity of the basic configurations be increased? How can networks of different types and characteristics be interconnected?
What are some examples of interconnection devices?
Simple length extension - repeater/hub (cleans and amplifies signal)
Length extension and filtering - switch/bridge
Length extension and filtering and interconnection of two different topologies - router
Interconnection of two different protocols - gateway
What elements make up the basic Internet structure?
NSP networks, ISP networks, Campus network, Campus LAN – and routers
What are the layers of the TCP/IP structure?
Physical, data link, network, transport and application
What are some application layer protocols?
FTP, HTTP, SSH, Telnet, SMTP, SNMP, DNS
What are some transport layer protocols?
TCP, UDP
What are some network layer protocols?
IP, RIP, RCMP, ARP, RARP
What are some data link protocols?
IEEE, ATM, SLIP, PPP
What is an ephemeral port number?
A port number chosen at random by the client (49512-65535)
What is a standard port number?
A port number between 0 and 1023
What is a registered port number?
A port number between 1024 and 49151, used for services like Skype, GoogleTalk etc
What is an IP address?
a unique string of numbers separated by periods that identifies each device using the Internet to communicate over a network.
What is a mac address?
A media access control address (MAC address) of a computer is a unique identifier assigned to network interfaces for communications at the data link layer of a network segment. MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and Wi-Fi.
