ISTM 210 EXAM 2 NOTES WITH COMPLETE
SOLUTIONS 100% VERIFIED
Computer Network - ANSWER Two or more computers connected to each
other to share resources like:
•Folders and files
•Software
•Hardware
•Scanners
•Printers
•Webcams
Consider a network made up of three computers (Clients) connected to one
computer called a Server. The server is connected to a printer and a scanner
(peripheral devices) enabling all three clients to use them. Any device connected
to a network is called a node.
Network Advantages - ANSWER Consider a business that tries to save money
by not purchasing a network or network software. Although their initial capital
outlay is smaller than the same size business that chooses to buy a network, they
suffer from many disadvantages:
Economic Disadvantages - ANSWER With no network, each computer would
need their own peripheral devices, like printers. With a network, only one shared
printer is needed. Software: Software can be loaded on a server for all clients to
use whereas a business with stand-alone computers needs software loaded on
individual boxes.
,Collaboration - ANSWER Networks allow businesses to share and collaborate
on projects.
Network Advantages 2 - ANSWER Internet: Networks allow businesses to share
the Internet whereas stand-alone computers need their own individual Internet
connection
Building a Computer Network - ANSWER All networks require four basic
components
1.Network Interface Controller Card (NIC): Plugged into the motherboard to
interface and connect with other computers.
2.Protocol: TCP/IP controls how data and information is shared between
computers.
3.Cables: Cables connect servers to clients which can sometimes be replaced
through wireless connections.
4.Hub: Typically the central location of a network (server) that serves to run the
network smoothly
Network Protocols - ANSWER Provides a common language and rules for
communication between computers. A protocol is a convention or standard that
controls or allows communication and data transfer between two computers.
, Transmission Control Protocol / Internet Protocol (TCP/IP): - ANSWER When
sending a file from one computer to another, the file is broken down into smaller
files called "packets". The packets arrive at the receiving computer and must be
reassembled correctly to guarantee the receiving computer gets a file that will
work (not corrupted).
User Datagram Packets: - ANSWER Break large files into packets, but unlike
TCP/IP, allows a user to use the incoming file even if some packets do not make it.
Would YouTube.com exist without UDP? - ANSWER TP - show TCP/IP and UDP
joke - sending and receiving and .....
Network Operating Systems - ANSWER A Network Operating System (NOS) is
similar to a stand-alone platform but responsible for much more:
•Automatic hardware detection. The NOS recognizes it when it becomes part of
the network.
•Supports multi-processing which allows several processes to occur at one time.
•Recognizes who is using the network.
•Provides security
Network Administrator - ANSWER •Responsible for smooth network
operations
SOLUTIONS 100% VERIFIED
Computer Network - ANSWER Two or more computers connected to each
other to share resources like:
•Folders and files
•Software
•Hardware
•Scanners
•Printers
•Webcams
Consider a network made up of three computers (Clients) connected to one
computer called a Server. The server is connected to a printer and a scanner
(peripheral devices) enabling all three clients to use them. Any device connected
to a network is called a node.
Network Advantages - ANSWER Consider a business that tries to save money
by not purchasing a network or network software. Although their initial capital
outlay is smaller than the same size business that chooses to buy a network, they
suffer from many disadvantages:
Economic Disadvantages - ANSWER With no network, each computer would
need their own peripheral devices, like printers. With a network, only one shared
printer is needed. Software: Software can be loaded on a server for all clients to
use whereas a business with stand-alone computers needs software loaded on
individual boxes.
,Collaboration - ANSWER Networks allow businesses to share and collaborate
on projects.
Network Advantages 2 - ANSWER Internet: Networks allow businesses to share
the Internet whereas stand-alone computers need their own individual Internet
connection
Building a Computer Network - ANSWER All networks require four basic
components
1.Network Interface Controller Card (NIC): Plugged into the motherboard to
interface and connect with other computers.
2.Protocol: TCP/IP controls how data and information is shared between
computers.
3.Cables: Cables connect servers to clients which can sometimes be replaced
through wireless connections.
4.Hub: Typically the central location of a network (server) that serves to run the
network smoothly
Network Protocols - ANSWER Provides a common language and rules for
communication between computers. A protocol is a convention or standard that
controls or allows communication and data transfer between two computers.
, Transmission Control Protocol / Internet Protocol (TCP/IP): - ANSWER When
sending a file from one computer to another, the file is broken down into smaller
files called "packets". The packets arrive at the receiving computer and must be
reassembled correctly to guarantee the receiving computer gets a file that will
work (not corrupted).
User Datagram Packets: - ANSWER Break large files into packets, but unlike
TCP/IP, allows a user to use the incoming file even if some packets do not make it.
Would YouTube.com exist without UDP? - ANSWER TP - show TCP/IP and UDP
joke - sending and receiving and .....
Network Operating Systems - ANSWER A Network Operating System (NOS) is
similar to a stand-alone platform but responsible for much more:
•Automatic hardware detection. The NOS recognizes it when it becomes part of
the network.
•Supports multi-processing which allows several processes to occur at one time.
•Recognizes who is using the network.
•Provides security
Network Administrator - ANSWER •Responsible for smooth network
operations
