CS 1032 FINAL - LECTURE NOTES
What are two components
of network? - Answers - Collaboration
Communication network
What is collaboration? - Answers - two people working to achieve a common goal,
result, or product. It is facilitated by the use of current technology.
Why should people
collaborate? - Answers - produces results greater than those that could be
produced by individuals working alone.
What is a network? - Answers - collection of communication links with the ability to
route messages among devices attached to it
What do communications
systems allow for? - Answers - Email, VPNs, instant messaging
Database and content management
Workflow control
Process for creating/editing/using content
What are computer
networks? - Answers - a collection of computers that communicate
via transmission media; physical (e.g. optical fiber wires), wireless, or radio frequencies
What are three types of
networks? - Answers - 1) Local area network (LAN)
2) Wide area network (WAN)- local networks separated by longer distances
3) The Internet
What is the intranet? - Answers - a private network of networks that is much smaller
and has a specific reason for its existence
What is the internet? - Answers - uses a variety of communication methods and
conventions. It is much larger, and has both layered protocols that provide a seamless
flow of data (different programs use different protocols), which is a set of rules that
communicating devices follow. It is simply a file sharing mechanism
What is the URL? - Answers - The uniform resource locator is the instructions on the
address of a document on the internet, and the protocol used to access the document
What are some protocols? - Answers - 1) HTTP - Hypertext Transfer Protocol: transmits
files on the world-wide-web (Note: the WWW is located in the internet, but is not THE
internet). (e.g. http://www.google.com)
2) FTP - File Transfer Protocol: exchanges files over the
, internet. (e.g. ftp://ftp.csd.uwo.ca)
3) SMTP - Simple Mail Transfer Protocol: sends mail over the internet
What are the components of the URL? - Answers - E.g.
http://www.uwo.ca/selected/browse.html
Protocol: http (note: if there is no protocol, the default is html)
Web server: www.uwo.ca
Folder: selected (note: folders and files are case-sensitive,
not web servers or protocols)
Document: browse.html (note: if there is no document, then the default web page is
index.html)
What is a Top-Level
Domain? - Answers - states the rules for naming websites (e.g.
".ca", ".com", ".gov")
What are some
components of LAN? - Answers - N include the switch, network interface
cards (NIC), unshielded twisted pair cables (UTP).
What is a local area
network? - Answers - a network of computers connected at a
single physical site, over a small geographic area. Property exchanged in this network
can be controlled by the company operating the network. For example, all computers in
your house can be connected to one printer
What is a wide area
network? - Answers - a network of computers in different
geographic areas. Transmission lines are usually licensed by the government.
What does "network of
networks" mean? - Answers - The internet and intranets connect LANs, WANs, and
other internets together.
What is a switch? - Answers - a special purpose computer that receives and transmits
messages on the LAN; this allows you to have more than one computer on a LAN.
What is a Network
Interface Card? - Answers - hardware to connect each device
to the cable, either with a built-in NIC or expansion slot card. It gives a device a Media
Access Controller (MAC) address, which is its unique identifier.
What are some network
connection cables? - Answers - The unshielded twisted pair cable (UTP) is 4 twisted
double pairs of wires linked together, with the twisting to reduce signal interference.
What are two components
of network? - Answers - Collaboration
Communication network
What is collaboration? - Answers - two people working to achieve a common goal,
result, or product. It is facilitated by the use of current technology.
Why should people
collaborate? - Answers - produces results greater than those that could be
produced by individuals working alone.
What is a network? - Answers - collection of communication links with the ability to
route messages among devices attached to it
What do communications
systems allow for? - Answers - Email, VPNs, instant messaging
Database and content management
Workflow control
Process for creating/editing/using content
What are computer
networks? - Answers - a collection of computers that communicate
via transmission media; physical (e.g. optical fiber wires), wireless, or radio frequencies
What are three types of
networks? - Answers - 1) Local area network (LAN)
2) Wide area network (WAN)- local networks separated by longer distances
3) The Internet
What is the intranet? - Answers - a private network of networks that is much smaller
and has a specific reason for its existence
What is the internet? - Answers - uses a variety of communication methods and
conventions. It is much larger, and has both layered protocols that provide a seamless
flow of data (different programs use different protocols), which is a set of rules that
communicating devices follow. It is simply a file sharing mechanism
What is the URL? - Answers - The uniform resource locator is the instructions on the
address of a document on the internet, and the protocol used to access the document
What are some protocols? - Answers - 1) HTTP - Hypertext Transfer Protocol: transmits
files on the world-wide-web (Note: the WWW is located in the internet, but is not THE
internet). (e.g. http://www.google.com)
2) FTP - File Transfer Protocol: exchanges files over the
, internet. (e.g. ftp://ftp.csd.uwo.ca)
3) SMTP - Simple Mail Transfer Protocol: sends mail over the internet
What are the components of the URL? - Answers - E.g.
http://www.uwo.ca/selected/browse.html
Protocol: http (note: if there is no protocol, the default is html)
Web server: www.uwo.ca
Folder: selected (note: folders and files are case-sensitive,
not web servers or protocols)
Document: browse.html (note: if there is no document, then the default web page is
index.html)
What is a Top-Level
Domain? - Answers - states the rules for naming websites (e.g.
".ca", ".com", ".gov")
What are some
components of LAN? - Answers - N include the switch, network interface
cards (NIC), unshielded twisted pair cables (UTP).
What is a local area
network? - Answers - a network of computers connected at a
single physical site, over a small geographic area. Property exchanged in this network
can be controlled by the company operating the network. For example, all computers in
your house can be connected to one printer
What is a wide area
network? - Answers - a network of computers in different
geographic areas. Transmission lines are usually licensed by the government.
What does "network of
networks" mean? - Answers - The internet and intranets connect LANs, WANs, and
other internets together.
What is a switch? - Answers - a special purpose computer that receives and transmits
messages on the LAN; this allows you to have more than one computer on a LAN.
What is a Network
Interface Card? - Answers - hardware to connect each device
to the cable, either with a built-in NIC or expansion slot card. It gives a device a Media
Access Controller (MAC) address, which is its unique identifier.
What are some network
connection cables? - Answers - The unshielded twisted pair cable (UTP) is 4 twisted
double pairs of wires linked together, with the twisting to reduce signal interference.
