5. List two transmission media besides cabling.
-terestial
-satellite
6. Describe three pieces of network hardware including the function of
each piece in the network.
-nodes: individual computers linked to the network
-servers: save information and run programs
-modems connects LANs to a WAN
7. Explain the meaning of each part of the following Ethernet cable designations:
-
10 Base-2: 10 mbps, baseband 2
- 100 Base-T: 100 mbps, twisted pair
-CAT5 UTP: catagory 5, twisted pair
-
coaxial: copper wire with rubber shielding
8. Why are network addresses essential to communication on the Internet?
-allow for correct packet switching
-able to determine wich computer is not functioning
9. Explain the meaning
of each of the numbers in a network address where the TCP/IP address is 54.200.39.221 and the subnet mask is 255.255.255.0.
network: 54.200.39.221
subnet: 255.255.255.0
node=221
10. Explain the difference between the acronyms OSI and ISO.
-OSI (Open System Interconnection): the standards by which networking
is to be based on to allow for worldwide connectivity.
-ISO (International Standards Organization): founded in 1946, it sets the standard
for which computer technology is based on.
11. List the seven layers in the OSI model. ***
-Application
-Presentation
-Session
-Transport
-Network
-Data
-Physical
12. What are transmission protocols?
Transmission protocols are used to differenciate from the functions the computer
is trying to do. example: running an ftp requires the use of an FTP protocol.
13. List one characteristics of each of the seven layers of the OSI model.
-Application: This layer supports application and end-user processes.
-Presentation: The presentation layer works to transform data into the form
that the application layer can accept.
-Session: This layer establishes, manages and terminates connections between
applications
-Transport: This layer provides transparent transfer of data between end systems,
or hosts, and is responsible for end-to-end error recovery and flow control.
-Network:Routing and forwarding are functions of this layer, as well as addressing,
internetworking, error handling, congestion control and packet sequencing.
-Data: It furnishes transmission protocol knowledge and management and
handles errors in the physical layer, flow control and frame synchronization.
-Physical: It provides the hardware means of sending and receiving data on
a carrier, including defining cables, cards and physical aspects.
14. What is one purpose of the NOS?
-managing individual nodes and their functions
15. List two different types of NOSs.
-Novell
-Citrux
16. Explain the difference between a networking operating system and a
desktop operating system.
-networking OS: it controls the functions of individual
nodes and the things they can do.
-desktop OS: controls the functions of the computer it is on, used to run programs
that are installed on it's machine.
